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 182 years ago in 1843.
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 : | 10:51:43 (22nd February 2025) |
| Density : | 15 Pop. per km² as of 2020 |
| Population growth : | -0.05% (2010-2020) |
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
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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 |
- Official Website
Official website of Mahaska County
Mahaska County has 6 neighbours.
- Jasper County county in Iowa, United States
- Keokuk County county in Iowa, United States
- Marion County county in Iowa, United States
- Monroe County county in Iowa, United States
- Poweshiek County county in Iowa, United States
- Wapello County county in Iowa, United States
- 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 |
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 |
|---|---|---|
| Indiana | 820,445 | A city located in the state of Iowa. |
| Polk County | 494,281 | County in Iowa, United States |
| Linn County | 227,854 | County in Oregon, United States |
| Des Moines | 212,312 | The capital of Iowa. |
| Scott County | 173,216 | County in Tennessee, United States |
| Johnson County | 153,740 | County in Iowa, United States |
| Cedar Rapids | 134,027 | The second most populous city in Iowa. |
| Black Hawk County | 130,786 | County in Iowa, United States |
| Woodbury County | 103,138 | County in Iowa, United States of America |
| Davenport | 101,799 | The most populous city in Scott County, Iowa. |
| Story County | 98,237 | County in Iowa, United States |
| Dubuque County | 97,590 | County in Iowa, United States |
| 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. |
