Polk County, Iowa
Polk County | |
|---|---|
Polk County Courthouse | |
Location within the U.S. state of Iowa | |
Iowa's location within the U.S. | |
| Coordinates: 41°41′5.338″N 93°34′8.295″W / 41.68481611°N 93.56897083°W | |
| Country | United States |
| State | Iowa |
| Founded | January 13, 1846 |
| Named after | James K. Polk |
| Seat | Des Moines |
| Largest city | Des Moines |
| Area | |
• Total | 591.888 sq mi (1,532.98 km2) |
| • Land | 572.720 sq mi (1,483.34 km2) |
| • Water | 019.168 sq mi (49.64 km2) 3.0% |
| Population (2020) | |
• Total | 492,401 |
• Estimate (2023) | 505,255 |
| • Density | 882.927/sq mi (340.900/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 3rd |
| Website | polkcountyiowa.gov |
Polk County is located in the U.S. state of Iowa. As of the 2020 census, the population was 492,401. making it the most populous county in Iowa, and was estimated to be 505,255 in 2023. It is home to over 15% of the state's residents. The county seat 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.