County
· Iowa
Polk County
Polk County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 492,401, and was estimated to be 516,546 in 2025, making it the most populous county in Iowa. The county seat and the largest city is Des Moines, which is also the capital city of Iowa. Polk County is included in the Des Moines–West Des Moines, IA Metropolitan Statistical Area.
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Cities and towns 17
- City of Alleman pop. 423
- City of Altoona pop. 20,705
- City of Ankeny pop. 70,287
- City of Bondurant pop. 8,035
- City of Clive pop. 18,814
- City of Des Moines pop. 212,031
- City of Elkhart pop. 928
- City of Grimes pop. 15,949
- City of Johnston pop. 24,195
- City of Mitchellville pop. 2,514
- City of Pleasant Hill pop. 10,860
- City of Polk City pop. 5,751
- City of Runnells pop. 453
- City of Sheldahl pop. 301
- City of Urbandale pop. 45,923
- City of West Des Moines pop. 69,792
- City of Windsor Heights pop. 5,170
Reference data (Census of Governments 2022)
- Census ID (PID6)
- 104326
- FIPS state
- 19
- FIPS county
- 153
- FIPS place
- 99153
- Census record name
- COUNTY OF POLK
- Mailing address
- 111 COURT AVE, DES MOINES 50309