Mahaska County, Iowa

Mahaska County: County in Iowa, United States

About

Mahaska County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 22,381 and a population density of 15 people per km². After 10 years in 2020 county had an estimated population of 22,370 inhabitants. Its county seat is Oskaloosa. The county was created 181 years ago in 1843.

Mahaska County locator map
Location of Mahaska County on Iowa map.

Quick Facts about Mahaska County

Population : 22,370 (2020)
Country : United States of America
State : Iowa (United States)
Area : 1485 km2
Water as percent of area : 0.4%
Land as percent of area : 99.6%
Named for : Chief Mahaska
Altitude : 810 feet / 247 meters
Capital : Oskaloosa
Establishment : February 02, 1843
Time Zone : America/Chicago
Local time : 11:08:37 (19th April 2024)
Density : 15 Pop. per km² as of 2020
Population growth : -0.05% (2010-2020)
Mahaska County  Iowa Courthouse image
Mahaska County Iowa Courthouse
Mahaska County  Iowa Courthouse image

Geography

Mahaska County is located at 41°20'7"N 92°38'27"W (41.3352000, -92.6409100). It has 6 neighbors: Jasper County, Keokuk County, Marion County, Monroe County, Poweshiek County and Wapello County.

Mahaska County map

The largest city of Mahaska County is Oskaloosa with a population of 11,803. Other cities include, New Sharon population 1,286, Fremont population 727, Beacon population 488 and University Park population 468. See all Mahaska County cities & populated places.

Mahaska County Populated Places

Cities, towns, neighborhoods & other populated places in Mahaska County.

City Name Population Title
Oskaloosa 11,803 City in and the county seat of Mahaska County, Iowa, United States
New Sharon 1,286 Human settlement in Mahaska County, Iowa, United States of America
Fremont 727 City in Mahaska County, Iowa, United States
Beacon 488 Human settlement in Mahaska County, Iowa, United States of America
University Park 468 City in Mahaska County, Iowa, United States
Barnes City 169 Human settlement in Iowa, United States of America
Rose Hill 161 City in Mahaska County, Iowa, United States
Leighton 155 City in Iowa
Keomah Village 99 Human settlement in Mahaska County, Iowa, United States of America

Mahaska County has 6 neighbours.

  • Oskaloosa

Demographics

According to census records, the population of Mahaska County decreased by 0.05% in 10 years.

Year Population % Change Method
2010 22,381 - census
2011 22,501 0.53% estimation process
2012 22,398 -0.46% estimation process
2013 22,421 0.1% estimation process
2014 22,363 -0.26% estimation process
2015 22,312 -0.23% estimation process
2016 22,186 -0.57% estimation process
2017 22,211 0.11% estimation process
2018 22,018 -0.88% estimation process
2019 22,095 0.35% estimation process
2020 22,370 1.23% estimation process

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People born in Mahaska County (3)

People born in Mahaska County, including U.S. Representative from South Dakota William Williamson, Daniel Frank Craig, Dustin Hite, .

List

Iowa Other Counties (more counties)

County Name Population Title
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Cedar Rapids 134,027 The second most populous city in Iowa.
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Dallas County 96,963 County in Iowa, United States
Pottawattamie County 93,328 County in Iowa, United States of America
Sioux City 82,651 The second most populous city in Iowa.
Iowa City 75,130 The most populous city in Johnson County, Iowa.