Mahaska County, Iowa

Mahaska County
Mahaska County
County
	The courthouse in Oskaloosa, built 1886, is on the NRHP. The architect was Henry C. Koch.
	Location within the U.S. state of Iowa
	Iowa's location within the U.S.
	Coordinates: 41°20′02″N 92°38′44″W / 41.333888888889°N 92.645555555556°W
Country	United States
State	Iowa
Founded	February 17, 1843
Named for	Chief Mahaska
Seat	Oskaloosa
Largest city	Oskaloosa
Area
• Total	573 sq mi (1,480 km2)
• Land	571 sq mi (1,480 km2)
• Water	2.5 sq mi (6 km2) 0.4%
Population (2020)
• Total	22,190
• Density	39/sq mi (15/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	2nd
Website	www.mahaskacountyia.gov

Mahaska County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 22,190.^[1] The county seat is Oskaloosa.^[2]

Mahaska County comprises the Oskaloosa, IA Micropolitan Statistical Area.

^ "2020 Census State Redistricting Data". census.gov. United states Census Bureau. Retrieved August 12, 2021.
^ "Find a County". National Association of Counties. Retrieved June 7, 2011.