|— CDP —|
Location of Kingsbury, Texas
|- Total||28.8 sq mi (74.7 km2)|
|- Land||28.8 sq mi (74.5 km2)|
|- Water||0.1 sq mi (0.2 km2)|
|Elevation||604 ft (184 m)|
|- Density||22.7/sq mi (8.7/km2)|
|Time zone||Central (CST) (UTC-6)|
|- Summer (DST)||CDT (UTC-5)|
|GNIS feature ID||1339146|
According to the United States Census Bureau, the CDP has a total area of 28.8 square miles (74.7 km²), of which, 28.8 square miles (74.5 km²) of it is land and 0.1 square miles (0.2 km²) of it (0.24%) is water.
As of the census of 2000, there were 652 people, 252 households, and 193 families residing in the CDP. The population density was 22.7 people per square mile (8.8/km²). There were 269 housing units at an average density of 9.3/sq mi (3.6/km²). The racial makeup of the CDP was 92.48% White, 1.84% African American, 0.46% Native American, 4.14% from other races, and 1.07% from two or more races. Hispanic or Latino of any race were 13.65% of the population.
There were 252 households out of which 32.1% had children under the age of 18 living with them, 60.7% were married couples living together, 11.9% had a female householder with no husband present, and 23.4% were non-families. 19.0% of all households were made up of individuals and 7.9% had someone living alone who was 65 years of age or older. The average household size was 2.59 and the average family size was 2.93.
In the CDP the population was spread out with 25.0% under the age of 18, 8.6% from 18 to 24, 29.4% from 25 to 44, 27.1% from 45 to 64, and 9.8% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 99.4 males. For every 100 females age 18 and over, there were 95.6 males.
The median income for a household in the CDP was $50,156, and the median income for a family was $60,536. Males had a median income of $38,750 versus $27,750 for females. The per capita income for the CDP was $21,744. About 4.3% of families and 8.7% of the population were below the poverty line, including 11.4% of those under age 18 and 9.6% of those age 65 or over.
Kingsbury is served by the Seguin Independent School District.