|Iowa Highway 15|
|Length:||63.56 mi (102.29 km)|
|Formed:||January 1, 1969|
|South end:||IA 3 near Pocahontas|
| US 18 near Whittemore
IA 9 at Armstrong
|North end:||MN 15 north of Armstrong|
|Counties:||Pocahontas, Humboldt, Palo Alto, Kossuth, Emmet|
|Major cities:||Rolfe, West Bend, Fenton, Armstrong|
Iowa Highway 15 is a state highway that runs from north to south across the state of Iowa. Highway 15 is a mid sized highway in Iowa, at 63.56 miles (102.29 km) long. The southern terminus of Iowa Highway 15 is east of Pocahontas at an intersection with Iowa Highway 3. The northern terminus of Iowa 15 is at the Minnesota border, where the highway continues north as Minnesota State Highway 15 near Fairmont.
Iowa Highway 15 begins east of Pocahontas at Iowa Highway 3. It goes north to Rolfe, then begins to go northeast in a stairstep manner until crossing the West Fork of the Des Moines River. It then turns north and passes through West Bend. It continues north to the Whittemore area, where there is a one-mile (1.6 km) overlap with U.S. Highway 18. It goes north to Fenton, then turns west. Near Ringsted, it turns north again, and meets Iowa Highway 9 in Armstrong. After leaving Armstrong going east, it turns north and ends at the Minnesota border.
Iowa Highway 15 was designated as a state highway on 1 January 1969. It had previous been designated Iowa Highway 44..
|Pocahontas||Pocahontas||0.0||IA 3||Southern terminus|
|Kossuth||Whittemore||29.6||US 18 west||Southern end of US 18 overlap.|
|30.6||US 18 east||Northern end of US 18 overlap.|
|Emmet||Armstrong||55.0||IA 9 west||Southern end of IA 9 overlap.|
|55.1||IA 9 east||Northern end of IA 9 overlap.|
|63.56||MN 15||Northern terminus.|
|Iowa Highway 15|
|Existed:||1 January 1969–1 July 2003|
|South end:||Route 15|
|North end:||IA 2|
|Replaced by:||Van Buren CR V56|
Prior to July 1, 2003, there was a second Iowa 15 in southern Iowa. That route extended from Iowa Highway 2 to the Missouri state line where it became Route 15. Iowa 15 was replaced by Van Buren County Road V56 and is signed as 'To Missouri 15' at the intersection with Iowa 2