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Population density (people per km2) by country, 2006
Population density (people per km2) map of the world in 1994.
.Population density (in agriculture standing stock and standing crop) is a measurement of population per unit area or unit volume.^ In fact, the entire planet has a land area of around 58 million square miles and a population of 6.5 billion, giving a density of 112 people per square mile, or twice the density of the Riverside MSA. .
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ While "urban" may be part of the story I've decided that population density per square mile is alone a surprisingly good predictor of which way a state will vote.
  • Open Left:: Population Density and the Obama-McCain Race 22 January 2010 21:53 UTC www.openleft.com [Source type: General]

^ The title comes from the total world population which could stand on the island of Zanzibar (assuming 1 square meter per person).

It is frequently applied to living organisms, and particularly to humans. It is a key geographic term.

Contents

Biological population densities

.Population density refers to the number of individuals per given unit of land area (usually square kilometers or square miles).^ It has a population density of 936 people per mile.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

^ In fact, the entire planet has a land area of around 58 million square miles and a population of 6.5 billion, giving a density of 112 people per square mile, or twice the density of the Riverside MSA. .
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ For example, in LAC which reaches into much higher latitudes than Africa, the resulting difference in predicted population densities using undadjusted and adjusted accessibility values reached up to eight people per square km.
  • Latin America and the Caribbean Population Database Documentation 22 January 2010 21:53 UTC gisweb.ciat.cgiar.org [Source type: Academic]

.It is a common biological measurement and is more often used by conservationists as a measure than population size.^ Nonetheless, properties of the distribution of urban population size have been studied far more than properties of the urban density distribution.
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ Chatterjee and Carlino (2001) offer an insightful example as to why density can be more important than population size.
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ With one-fourths of the population under the age of 15, the work force now has more than 34.1 million people.
  • Thailand Population, Thai Population, Population Density Thailand 22 January 2010 21:53 UTC www.asiarooms.com [Source type: FILTERED WITH BAYES]

.To measure population density, use: population divided by the area in km squared.^ In fact, the entire planet has a land area of around 58 million square miles and a population of 6.5 billion, giving a density of 112 people per square mile, or twice the density of the Riverside MSA. .
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ For example, in LAC which reaches into much higher latitudes than Africa, the resulting difference in predicted population densities using undadjusted and adjusted accessibility values reached up to eight people per square km.
  • Latin America and the Caribbean Population Database Documentation 22 January 2010 21:53 UTC gisweb.ciat.cgiar.org [Source type: Academic]

^ Orcha Srivastava & Dunbar (1996) use a population density of 6 individuals/km 2 ; this is the high end of a range of 2.7-6.0 individuals/km 2 calculated by Hrdy (1977) from Jay (1965).
  • Population density, infanticide and "social pathology" 22 January 2010 21:53 UTC weber.ucsd.edu [Source type: Academic]

Low densities may cause an extinction vortex and lead to further reduced fertility. This is called the Allee effect after the scientist who identified it. Examples of the causes in low population densities include:
  • Increased problems with locating mates
  • Increased inbreeding
.Different species have different expected densities.^ Different species, of course, exist at different densities in their environments, and the same species may be able to achieve one density in one environment and another in a different environment .

^ Luo [59] provided information on the average mass and annual net production for different plant parts (leaf, stem, and root) for different aged plants, densities and species.
  • PLoS ONE: Trade-Offs between the Metabolic Rate and Population Density of Plants 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

.R-selected species commonly have high population densities, while K-selected species may have lower densities.^ I would also think that Unionization would track pretty closely with population density, as the labor-intensive industries that tend to demand unionization require a relatively high population density.
  • Open Left:: Population Density and the Obama-McCain Race 22 January 2010 21:53 UTC www.openleft.com [Source type: General]

^ While "urban" may be part of the story I've decided that population density per square mile is alone a surprisingly good predictor of which way a state will vote.
  • Open Left:: Population Density and the Obama-McCain Race 22 January 2010 21:53 UTC www.openleft.com [Source type: General]

^ But the population density of Southern California or, say, New Jersey is pretty high and you don't get Asian-style broadband there, either.

.Low densities may be associated with specialized mate location adaptations such as specialized pollinators; as found in the orchid family (Orchidaceae).^ The structure of the ordination was driven by strong associations of sharks (Carcharhinidae), jacks (Carangidae), and large species of groupers (Serranidae) and snappers (Lutjanidae) with regions of low human population density (high latitude).
  • PLoS ONE: Fishery-Independent Data Reveal Negative Effect of Human Population Density on Caribbean Predatory Fish Communities 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

^ A burrow may or may not have one or more males associated with it and attempting (with variable success) to restrict mating access of other males to resident females.
  • Population density, infanticide and "social pathology" 22 January 2010 21:53 UTC weber.ucsd.edu [Source type: Academic]

^ Therefore, additional NMS ordinations were conducted on both families to investigate their within family associations with the survey locations relative to the maximum sizes of each species.
  • PLoS ONE: Fishery-Independent Data Reveal Negative Effect of Human Population Density on Caribbean Predatory Fish Communities 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

Human population density

A street in Hong Kong, one of the most densely populated places in the world
Mongolia is one of the least densely populated countries in the world, Monaco is currently the most.
.For humans, population density is the number of people per unit of area usually per square kilometer or mile (which may include or exclude cultivated or potentially productive area).^ It has a population density of 936 people per mile.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

^ Population Density: 126 people per sq km .
  • Thailand Population, Thai Population, Population Density Thailand 22 January 2010 21:53 UTC www.asiarooms.com [Source type: FILTERED WITH BAYES]

^ In fact, the entire planet has a land area of around 58 million square miles and a population of 6.5 billion, giving a density of 112 people per square mile, or twice the density of the Riverside MSA. .
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

.Commonly this may be calculated for a county, city, country, another territory, or the entire world.^ Demographers have calculated that the entire world population in 1984 could have fit into the state of Texas, allotting 1500 square feet per person.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

.The world population is 6.8 billion [1], and Earth's total area (including land and water) is 510 million square kilometers (197 million square miles) [2] .^ In fact, the entire planet has a land area of around 58 million square miles and a population of 6.5 billion, giving a density of 112 people per square mile, or twice the density of the Riverside MSA. .
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ While public concern about rapid population growth has subsided in recent decades, world population is still growing at about 80 million people a year.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

^ While "urban" may be part of the story I've decided that population density per square mile is alone a surprisingly good predictor of which way a state will vote.
  • Open Left:: Population Density and the Obama-McCain Race 22 January 2010 21:53 UTC www.openleft.com [Source type: General]

.Therefore the worldwide human population density is 6.8 billion ÷ 510 million = 13.3 per km² (34.5 per sq.^ Population Density: 126 people per sq km .
  • Thailand Population, Thai Population, Population Density Thailand 22 January 2010 21:53 UTC www.asiarooms.com [Source type: FILTERED WITH BAYES]

^ In fact, the entire planet has a land area of around 58 million square miles and a population of 6.5 billion, giving a density of 112 people per square mile, or twice the density of the Riverside MSA. .
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ Regression statistics of predatory reef-fish presence across a gradient of human population density.
  • PLoS ONE: Fishery-Independent Data Reveal Negative Effect of Human Population Density on Caribbean Predatory Fish Communities 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

mile). .If only the Earth's land area of 150 million km² (58 million sq.^ In fact, the entire planet has a land area of around 58 million square miles and a population of 6.5 billion, giving a density of 112 people per square mile, or twice the density of the Riverside MSA. .
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ The vast majority of Canadians live in a narrow strip of land that comprises only a small fraction of the total area of Canada.

miles) is taken into account, then human population density increases to 45.3 per km² (117.2 per sq. mile). .This calculation includes all continental and island land area, including Antarctica.^ That means if all the land were divided into equal amounts among the population, every person would have an area exactly 172 feet x 172 feet.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

.Considering that over half of the Earth's land mass consists of areas inhospitable to human inhabitation, such as deserts and high mountains, and that population tends to cluster around seaports and fresh water sources, this number by itself does not give any meaningful measurement of human population density.^ Regression statistics of predatory reef-fish presence across a gradient of human population density.
  • PLoS ONE: Fishery-Independent Data Reveal Negative Effect of Human Population Density on Caribbean Predatory Fish Communities 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

^ I agree with this, but until human nature changes I don't think we will be able to bring wealth to even a majority of the 7 billion inhabitants of Earth.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

^ Find this article online Luck GW (2007) A review of the relationships between human population density and biodiversity.
  • PLoS ONE: Fishery-Independent Data Reveal Negative Effect of Human Population Density on Caribbean Predatory Fish Communities 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

.Several of the most densely-populated territories in the world are city-states, microstates, micronations, or dependencies.^ If trains in the most heavily populated corridor in the United States cannot cover their costs, no other trains will come close.
  • Daily Kos: Sunday Train: Breaking Free of the Population Density Myth 22 January 2010 21:53 UTC www.dailykos.com [Source type: FILTERED WITH BAYES]

^ Complete disappearance of several large-bodied fishes indicates ecological and local extinctions have occurred in some densely populated areas.
  • PLoS ONE: Fishery-Independent Data Reveal Negative Effect of Human Population Density on Caribbean Predatory Fish Communities 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

^ Demographers have calculated that the entire world population in 1984 could have fit into the state of Texas, allotting 1500 square feet per person.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

.These territories share a relatively small area and a high urbanization level, with an economically specialized city population drawing also on rural resources outside the area, illustrating the difference between high population density and overpopulation.^ Beginning in 1950, the U.S. Census defined urbanized areas as places with a population of 50,000 or more, meeting a minimum density requirement, plus an "urban fringe" consisting of places roughly contiguous with the central city meeting a small population requirement; as such, urbanized areas are defined in a similar way as agglomerations in many economic models.
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ A limited and preliminary historical survey of economic analysis of the relationships of resources, politics, urban & rural areas.

^ A High-Powered Laser Offers a Low-Cost Way to Spread Broadband to Sparsely-Populated Areas WASHINGTON -- To cut the cost of bringing high-speed Internet to rural ......
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

.Cities with high population densities are, by some, considered to be overpopulated, though the extent to which this is the case depends on factors like quality of housing and infrastructure and access to resources.^ Might it then be the case that the shift in city density is specific to the Midwest and West, where annexation is frequent?
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ Population density, infanticide and "social pathology" Key Words: crowding, infanticide, resource defence, territoriality, langur, Presbytis, Rattus Population density, social pathology, and behavioral ecology .
  • Population density, infanticide and "social pathology" 22 January 2010 21:53 UTC weber.ucsd.edu [Source type: Academic]

^ It's probably a combination of factors, and population density is one of them.

.Most of the most densely-populated cities are in southern and eastern Asia, though Cairo and Lagos in Africa also fall into this category.^ The distribution of the population total available for each administrative unit over the grid cells that fall into that unit is straightforward.
  • Latin America and the Caribbean Population Database Documentation 22 January 2010 21:53 UTC gisweb.ciat.cgiar.org [Source type: Academic]

^ The most densely populated countries in the world today are not India and Bangladesh, but Holland and Japan.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

^ The Triple-C corridor is the most densely populated corridor that lacks any service at all, and Columbus the second largest city that lacks any rail service.
  • Daily Kos: Sunday Train: Breaking Free of the Population Density Myth 22 January 2010 21:53 UTC www.dailykos.com [Source type: FILTERED WITH BAYES]

.City population is, however, heavily dependent on the definition of "urban area" used: densities are often higher for the central municipality itself, than when more recently-developed and administratively unincorporated suburban communities are included, as in the concepts of agglomeration or metropolitan area, the latter including sometimes neighboring cities.^ The urban economics literature concerning population size, however, often uses MSAs.
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ Much of the literature on city population uses data on Metropolitan Statistical Areas (MSAs).
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ For 1990 and 2000, a full listing of places with area and population is available online as part of the U.S. Census Gazetteer.7 The County and City Data Books, hosted by the University ofVirginia, Geospatial and Statistical Data Center, hold population and area data for 1930, 1940, 1950, 1960, and 1975; these data were entered by hand during the 1970s from the same census books we used.8 However, crosschecking this data with the actual census publications revealed a number of minor errors, and further indicated that unincorporated places and urban towns were not included.
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

.For instance, Milwaukee has a greater population density when just the inner city is measured, and not the surrounding suburbs as well.^ An arresting fact is that the Netherlands has the same population density as Kansas City.
  • Matthew Yglesias (November 30, 2007) - Trantor's Population Density (Culture) 22 January 2010 21:53 UTC matthewyglesias.theatlantic.com [Source type: General]

^ While the population density is constant across the rooms, the density of competing males (as measured by the sex ratio) varies from 0.41 to 0.70.
  • Population density, infanticide and "social pathology" 22 January 2010 21:53 UTC weber.ucsd.edu [Source type: Academic]

^ Urbanized Area A region incorporating a central city plus surrounding towns and cities meeting a density requirement.
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

Other methods of measurement

.While arithmetic density is the most common way of measuring population density, several other methods have been developed which aim to provide a more accurate measure of population density over a specific area.^ As I said, the most important density measure is the density of the overall population served by the provider.

^ It's the overall density of the total population the provider serves that matters most, not the density of particular areas.

^ "It's the overall density of the total population the provider serves that matters most, not the density of particular areas."

  • Arithmetic density: The total number of people / area of land (measured in km² or sq miles).
  • Physiological density: The total population / area of arable land.
  • Agricultural density: The total rural population / area of agricultural land.
  • Residential density : The number of people living in an urban area / area of residential land.
  • Urban density : The number of people inhabiting an urban area / total area of urban land.
  • Ecological optimum: The density of population which can be supported by the natural resources.

See also

Lists:

External links


Genealogy

Up to date as of February 01, 2010

From Familypedia

File:Countries by population density.svg
Population density (people per km2) by country, 2006
File:Population density.png
Population density (people per km2) map of the world in 1994.
.Population density (in agriculture standing stock and standing crop) is a measurement of population per unit area or unit volume.^ In fact, the entire planet has a land area of around 58 million square miles and a population of 6.5 billion, giving a density of 112 people per square mile, or twice the density of the Riverside MSA. .
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ Some researchers have suggested that the leaf biomass per individual inversely scales with population density in populations that are undergoing self-thinning [12] , [43] , [52] .
  • PLoS ONE: Trade-Offs between the Metabolic Rate and Population Density of Plants 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

^ By combining both scaling relationships, they further proposed the energetic equivalence rule, which states that the amount of energy per unit area used by a population of a specific species is independent of body size.
  • PLoS ONE: Trade-Offs between the Metabolic Rate and Population Density of Plants 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

It is frequently applied to living organisms, and particularly to humans. It is a key term used in geography.

Contents

Biological population densities

.Population density refers to the number of individuals per square kilometer of land area.^ In areas with a stable population, the number of children is a.
  • --Chapt. 28 -- Population Ecology 22 January 2010 21:53 UTC www.valdosta.edu [Source type: Academic]

^ In fact, the entire planet has a land area of around 58 million square miles and a population of 6.5 billion, giving a density of 112 people per square mile, or twice the density of the Riverside MSA. .
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ For example, in LAC which reaches into much higher latitudes than Africa, the resulting difference in predicted population densities using undadjusted and adjusted accessibility values reached up to eight people per square km.
  • Latin America and the Caribbean Population Database Documentation 22 January 2010 21:53 UTC gisweb.ciat.cgiar.org [Source type: Academic]

.It is a common biological measurement and is more often used by conservationists as a measure than population size.^ With one-fourths of the population under the age of 15, the work force now has more than 34.1 million people.
  • Thailand Population, Thai Population, Population Density Thailand 22 January 2010 21:53 UTC www.asiarooms.com [Source type: FILTERED WITH BAYES]

^ This transformation avoids an exaggerated influence of very large mega-cities while being less of an equalizer than the more common log-transformation.
  • Latin America and the Caribbean Population Database Documentation 22 January 2010 21:53 UTC gisweb.ciat.cgiar.org [Source type: Academic]

^ Inuit, San people and others prove harsh climates are inhabitable, but they have tiny populations and often resort to harsh measures to keep populations under control.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

Low densities may cause an extinction vortex and lead to further reduced fertility. This is called the Allee effect, after W. C. Allee who first identified it. Examples of the causes in low population densities include:
  • Increased problems with locating mates
  • Increased inbreeding
.Different species have different expected densities.^ Different species, of course, exist at different densities in their environments, and the same species may be able to achieve one density in one environment and another in a different environment .

^ Luo [59] provided information on the average mass and annual net production for different plant parts (leaf, stem, and root) for different aged plants, densities and species.
  • PLoS ONE: Trade-Offs between the Metabolic Rate and Population Density of Plants 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

.R-selected species commonly have high population densities, while K-selected species may have lower densities.^ I would also think that Unionization would track pretty closely with population density, as the labor-intensive industries that tend to demand unionization require a relatively high population density.
  • Open Left:: Population Density and the Obama-McCain Race 22 January 2010 21:53 UTC www.openleft.com [Source type: General]

^ While "urban" may be part of the story I've decided that population density per square mile is alone a surprisingly good predictor of which way a state will vote.
  • Open Left:: Population Density and the Obama-McCain Race 22 January 2010 21:53 UTC www.openleft.com [Source type: General]

^ The increase in a predator population would cause a density-dependent reduction in population; the reduction of a competitor species might cause a density-dependent increase in population size.
  • --Chapt. 28 -- Population Ecology 22 January 2010 21:53 UTC www.valdosta.edu [Source type: Academic]

.Low densities may be associated with specialised mate location adaptations such as specialised pollinators; as found in the orchid family (Orchidaceae).^ A burrow may or may not have one or more males associated with it and attempting (with variable success) to restrict mating access of other males to resident females.
  • Population density, infanticide and "social pathology" 22 January 2010 21:53 UTC weber.ucsd.edu [Source type: Academic]

^ Population densities may additionally be determined in terms of some measure other than population size per unit area such as population mass per unit area .

^ Therefore, additional NMS ordinations were conducted on both families to investigate their within family associations with the survey locations relative to the maximum sizes of each species.
  • PLoS ONE: Fishery-Independent Data Reveal Negative Effect of Human Population Density on Caribbean Predatory Fish Communities 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

Human population density

File:Crowd in HK.JPG
A street in Hong Kong, one of the most densely populated places in the world.
File:IMGP0117.JPG
A street in Ulan Bator, the capital of Mongolia - the least densely populated country in the world.
Main article: List of countries by population density
.For humans, population density is the number of people per unit of area usually per square kilometre(which may include or exclude cultivated or potentially productive area).^ It has a population density of 936 people per mile.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

^ Population Density: 126 people per sq km .
  • Thailand Population, Thai Population, Population Density Thailand 22 January 2010 21:53 UTC www.asiarooms.com [Source type: FILTERED WITH BAYES]

^ In fact, the entire planet has a land area of around 58 million square miles and a population of 6.5 billion, giving a density of 112 people per square mile, or twice the density of the Riverside MSA. .
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

.Commonly this may be calculated for a county, city, country, another territory, or the entire world.^ Demographers have calculated that the entire world population in 1984 could have fit into the state of Texas, allotting 1500 square feet per person.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

.The world population is 6.7 billion, and Earth's area is 510 million square kilometers (200 million square miles).^ In fact, the entire planet has a land area of around 58 million square miles and a population of 6.5 billion, giving a density of 112 people per square mile, or twice the density of the Riverside MSA. .
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ While public concern about rapid population growth has subsided in recent decades, world population is still growing at about 80 million people a year.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

^ While "urban" may be part of the story I've decided that population density per square mile is alone a surprisingly good predictor of which way a state will vote.
  • Open Left:: Population Density and the Obama-McCain Race 22 January 2010 21:53 UTC www.openleft.com [Source type: General]

.Therefore the worldwide human population density is 6.6 billion ÷ 510 million = 13 per km² (33 per sq mi), or 43 per km² (112 per sq mi) if only the Earth's land area of 150 million km² (58 million sq mi) is taken into account.^ Population Density: 126 people per sq km .
  • Thailand Population, Thai Population, Population Density Thailand 22 January 2010 21:53 UTC www.asiarooms.com [Source type: FILTERED WITH BAYES]

^ For example, in LAC which reaches into much higher latitudes than Africa, the resulting difference in predicted population densities using undadjusted and adjusted accessibility values reached up to eight people per square km.
  • Latin America and the Caribbean Population Database Documentation 22 January 2010 21:53 UTC gisweb.ciat.cgiar.org [Source type: Academic]

^ Regression statistics of predatory reef-fish presence across a gradient of human population density.
  • PLoS ONE: Fishery-Independent Data Reveal Negative Effect of Human Population Density on Caribbean Predatory Fish Communities 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

.This density rises when the population grows.^ As food, water, and other resources are strained by the escalating demands of a growing world population, the number of environmental refugees in the world will rise…and so will the potential for conflict and civil war.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

.It also includes all continental and island land area, including Antarctica.^ That means if all the land were divided into equal amounts among the population, every person would have an area exactly 172 feet x 172 feet.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

.Considering that over half of the earth's land mass consists of areas inhospitable to human inhabitation, such as deserts and high mountains, and that population tends to cluster around seaports and fresh water sources, this number by itself does not give accurate measurement of human population density.^ In fact, the entire planet has a land area of around 58 million square miles and a population of 6.5 billion, giving a density of 112 people per square mile, or twice the density of the Riverside MSA. .
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ A High-Powered Laser Offers a Low-Cost Way to Spread Broadband to Sparsely-Populated Areas WASHINGTON -- To cut the cost of bringing high-speed Internet to rural ......
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ Regression statistics of predatory reef-fish presence across a gradient of human population density.
  • PLoS ONE: Fishery-Independent Data Reveal Negative Effect of Human Population Density on Caribbean Predatory Fish Communities 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

.Several of the most densely-populated territories in the world are city-states, microstates, micronations, or dependencies.^ If trains in the most heavily populated corridor in the United States cannot cover their costs, no other trains will come close.
  • Daily Kos: Sunday Train: Breaking Free of the Population Density Myth 22 January 2010 21:53 UTC www.dailykos.com [Source type: FILTERED WITH BAYES]

^ Complete disappearance of several large-bodied fishes indicates ecological and local extinctions have occurred in some densely populated areas.
  • PLoS ONE: Fishery-Independent Data Reveal Negative Effect of Human Population Density on Caribbean Predatory Fish Communities 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

^ Demographers have calculated that the entire world population in 1984 could have fit into the state of Texas, allotting 1500 square feet per person.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

.These territories share a relatively small area and a high urbanization level, with an economically specialized city population drawing also on rural resources outside the area, illustrating the difference between high population density and overpopulation.^ Beginning in 1950, the U.S. Census defined urbanized areas as places with a population of 50,000 or more, meeting a minimum density requirement, plus an "urban fringe" consisting of places roughly contiguous with the central city meeting a small population requirement; as such, urbanized areas are defined in a similar way as agglomerations in many economic models.
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ Population density, infanticide and "social pathology" Key Words: crowding, infanticide, resource defence, territoriality, langur, Presbytis, Rattus Population density, social pathology, and behavioral ecology .
  • Population density, infanticide and "social pathology" 22 January 2010 21:53 UTC weber.ucsd.edu [Source type: Academic]

^ A limited and preliminary historical survey of economic analysis of the relationships of resources, politics, urban & rural areas.

.Cities with high population densities are, by some, considered to be overpopulated, though the extent to which this is the case depends on factors like quality of housing and infrastructure or access to resources.^ Density-dependent factors c.
  • --Chapt. 28 -- Population Ecology 22 January 2010 21:53 UTC www.valdosta.edu [Source type: Academic]

^ Predation is considered to be a density dependent factor that controls the population size of prey species.
  • --Chapt. 28 -- Population Ecology 22 January 2010 21:53 UTC www.valdosta.edu [Source type: Academic]

^ An arresting fact is that the Netherlands has the same population density as Kansas City.
  • Matthew Yglesias (November 30, 2007) - Trantor's Population Density (Culture) 22 January 2010 21:53 UTC matthewyglesias.theatlantic.com [Source type: General]

.Most of the most densely-populated cities are in southern and eastern Asia, though Cairo and Lagos in Africa also fall into this category.^ But rememebr, Don Williams' says that "densely populated, highly complex urban complexes inevitably fall into oppressive, authoritarian government" in reference to The Netherlands .
  • Matthew Yglesias (November 30, 2007) - Trantor's Population Density (Culture) 22 January 2010 21:53 UTC matthewyglesias.theatlantic.com [Source type: General]

^ For example, if you live in a state with low population density but in the metropolitan area of a large city in another state, you, personally, would live in a densely populated area.
  • Open Left:: Population Density and the Obama-McCain Race 22 January 2010 21:53 UTC www.openleft.com [Source type: General]

^ It the most densely populated country in the western hemisphere and the poorest.
  • Overpopulation? Have a baby! Have two! - Deborah Young - Open Salon 22 January 2010 21:53 UTC open.salon.com [Source type: Original source]

.City population is, however, heavily dependent on the definition of "urban area" used: densities are often higher for the central municipality itself, than when more recently-developed and administratively unincorporated suburban communities are included, as in the concepts of agglomeration or metropolitan area, the latter including sometimes neighboring cities.^ The urban economics literature concerning population size, however, often uses MSAs.
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ Much of the literature on city population uses data on Metropolitan Statistical Areas (MSAs).
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

^ For 1990 and 2000, a full listing of places with area and population is available online as part of the U.S. Census Gazetteer.7 The County and City Data Books, hosted by the University ofVirginia, Geospatial and Statistical Data Center, hold population and area data for 1930, 1940, 1950, 1960, and 1975; these data were entered by hand during the 1970s from the same census books we used.8 However, crosschecking this data with the actual census publications revealed a number of minor errors, and further indicated that unincorporated places and urban towns were not included.
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

.For instance, Milwaukee has a greater population density when just the inner city is measured, and not the surrounding suburbs as well.^ An arresting fact is that the Netherlands has the same population density as Kansas City.
  • Matthew Yglesias (November 30, 2007) - Trantor's Population Density (Culture) 22 January 2010 21:53 UTC matthewyglesias.theatlantic.com [Source type: General]

^ While the population density is constant across the rooms, the density of competing males (as measured by the sex ratio) varies from 0.41 to 0.70.
  • Population density, infanticide and "social pathology" 22 January 2010 21:53 UTC weber.ucsd.edu [Source type: Academic]

^ Urbanized Area A region incorporating a central city plus surrounding towns and cities meeting a density requirement.
  • The Evolution of City Population Density in the United States | Society, Social Assistance & Lifestyle > Communities & Neighborhoods from AllBusiness.com 22 January 2010 21:53 UTC www.allbusiness.com [Source type: FILTERED WITH BAYES]

Other methods of measurement

.While arithmetic density is the most common way of measuring population density, several other methods have been developed which aim to provide a more accurate measure of population density over a specific area.^ As I said, the most important density measure is the density of the overall population served by the provider.

^ It's the overall density of the total population the provider serves that matters most, not the density of particular areas.

^ "It's the overall density of the total population the provider serves that matters most, not the density of particular areas."

  • Arithmetic density: The total number of peoples / area of land measured in km² or mi².
  • Physiological density: The total population / the amount of arable land.
  • Agricultural density: The total rural population / amount of agricultural land.
  • Residential density : The number of people living in an urban area / the area of residential land.
  • Urban density : The number of people inhabiting an urban area / the total area of urban land.
  • Ecological optimum: The density of population which can be supported by the area's natural resources.

See also

  • List of countries by population density
  • List of countries by population
  • List of cities by population
  • List of religious populations
  • Human geography
  • Idealised population
  • Optimum population
  • Population bottleneck
  • Population genetics
  • Population health
  • Population momentum
  • Population pyramid
  • Small population size

External links

Template:Population
This page uses content from the English language Wikipedia. The original content was at Population density. The list of authors can be seen in the page history. .As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.^ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
  • PLoS ONE: Fishery-Independent Data Reveal Negative Effect of Human Population Density on Caribbean Predatory Fish Communities 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

^ All site content, except where otherwise noted, is licensed under a Creative Commons Attribution License .
  • PLoS ONE: Fishery-Independent Data Reveal Negative Effect of Human Population Density on Caribbean Predatory Fish Communities 22 January 2010 21:53 UTC www.plosone.org [Source type: Academic]

Facts about Population densityRDF feed
Wikipedia Population density  +

This article uses material from the "Population density" article on the Genealogy wiki at Wikia and is licensed under the Creative Commons Attribution-Share Alike License.

Simple English

, one of the most densely populated places in the world]] [[File:|thumb|250px|Mongolia is one of the least densely populated countries in the world]] The population density of a country or city is a way of showing how crowded that place is. It is calculated by dividing the population by the area. For example, France has a population of 60,561,200, and an area of 551,695 square kilometres, so its population density is about 109.8 persons per square kilometre.

A number of factors can affect population density. For example, the climate. Greenland has a very low population density because it is very cold there, so not many people want to live there.

Many cities were built near rivers, because the first settlers wanted somewhere close to water to start a society, so you could say areas around rivers usually have a high population density.

Some places, such as cities, have very high population densities, so they are quite crowded. The population density of New York City is 10,292 persons per square kilometre. Other places, such as large countries, can have very low population densities. The population density of Canada is only 3.5 persons per square kilometre because it is such a big country.

The country with the highest population density in the world is Monaco, with 16,620 persons per square kilometre. The country with the lowest is Greenland, which has only 0.03 persons per square kilometre.


Citable sentences

Up to date as of December 08, 2010

Here are sentences from other pages on Population density, which are similar to those in the above article.








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