Polk County, Iowa
Polk County: County in Iowa, United States
About
Polk County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 430,640 and a population density of 281 people per km². After 10 years in 2020 county had an estimated population of 494,281 inhabitants. Its county seat is Des Moines. The county was created 179 years ago in 1845.
Quick Facts about Polk County
| Population : | 494,281 (2020) |
| Country : | United States of America |
| State : | Iowa (United States) |
| Different from : | Polk County |
| Twitter username : | polkcountynews |
| Area : | 1533 km2 |
| Water as percent of area : | 3% |
| Land as percent of area : | 97% |
| Named for : | James K. Polk |
| Altitude : | 915 feet / 279 meters |
| Capital : | Des Moines |
| Establishment : | January 01, 1846 |
| Time Zone : | America/Chicago |
| Local time : | 02:34:39 (22nd February 2025) |
| Density : | 322 Pop. per km² as of 2020 |
| Population growth : | 12.88% (2010-2020) |
Geography
Polk County is located at 41°41'8"N 93°34'25"W (41.6855000, -93.5735300). It has 2 neighbors: Story County and Warren County.
Polk County map
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The largest city of Polk County is Des Moines with a population of 212,312. Other cities include, Ankeny population 70,068, West Des Moines population 69,057, Urbandale population 44,650 and Johnston population 23,092. See all Polk County cities & populated places.
Polk County Populated Places (more)
Cities, towns, neighborhoods & other populated places in Polk County.
| City Name | Population | Title |
|---|---|---|
| Des Moines | 212,312 | The capital of Iowa. |
| Ankeny | 70,068 | The most populous city in Polk County, Iowa. |
| West Des Moines | 69,057 | The most populous city in Dallas County, Iowa. |
| Urbandale | 44,650 | A city in Polk County, Iowa. |
| Johnston | 23,092 | City in Iowa, United States |
| Altoona | 19,503 | City in Polk County, Iowa, United States |
| Clive | 17,444 | Human settlement in Iowa, United States of America |
| Grimes | 15,831 | City in Iowa, United States |
| Pleasant Hill | 10,025 | American city in Iowa |
| Bondurant | 7,293 | City in Polk County, Iowa, United States of America |
| Polk City | 4,961 | American city in Iowa |
| Windsor Heights | 4,735 | City in Polk County, Iowa, United States |
| Saylorville | 3,301 | City in Polk County, Iowa, United States of America |
| Mitchellville | 2,273 | City in Iowa, United States |
| Elkhart | 952 | American city in Iowa |
| Runnells | 498 | City in Polk County, Iowa, United States |
- Official Website
Official website of Polk County
Polk County has 2 neighbours.
- Story County county in Iowa, United States
- Warren County county in Iowa, United States
Demographics
The population of Polk County increased by 12.88% in 10 years.
| Year | Population | % Change | Method |
| 2010 | 430,640 | - | census |
| 2011 | 438,737 | 1.85% | estimation process |
| 2012 | 444,671 | 1.33% | estimation process |
| 2013 | 452,657 | 1.76% | estimation process |
| 2014 | 460,898 | 1.79% | estimation process |
| 2015 | 467,304 | 1.37% | estimation process |
| 2016 | 474,277 | 1.47% | estimation process |
| 2017 | 480,487 | 1.29% | estimation process |
| 2018 | 485,833 | 1.1% | estimation process |
| 2019 | 490,161 | 0.88% | estimation process |
| 2020 | 494,281 | 0.83% | estimation process |
People born in Polk County (1)
American photographer Lyle D. Hawkins was born in Polk County
Other places with the same name (12)
- Polk County , Florida county in Minnesota, United States with a population of 744,552 people.
- Polk County , Oregon county in Oregon, United States with a population of 87,744 people.
- Polk County , Texas county in Texas, United States with a population of 52,995 people.
- Polk County , Wisconsin county in Wisconsin, United States with a population of 43,794 people.
- Polk County , Georgia county in Georgia, United States with a population of 42,840 people.
- Polk County , Missouri county in Missouri, United States with a population of 32,490 people.
- Polk County , Minnesota county in Minnesota, United States with a population of 30,900 people.
- Polk County , North Carolina county in North Carolina, United States with a population of 21,030 people.
- Polk County , Arkansas county in Arkansas, United States with a population of 19,707 people.
- Polk County , Tennessee county in Tennessee, United States with a population of 16,835 people.
- Polk County , Nebraska county in Nebraska, United States with a population of 5,201 people.
Iowa Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Indiana | 820,445 | A city located in the state of Iowa. |
| 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. |
| Ankeny | 70,068 | The most populous city in Polk County, Iowa. |
