Polk County | |
|---|---|
 Polk County Courthouse | |
 Flag  Seal | |
 Location within the U.S. state of Iowa | |
 Iowa's location within the U.S. | |
| Coordinates: 41°41′06″N 93°34′13″W / 41.685°N 93.5703°W | |
| Country |  United States |
| State |  Iowa |
| Founded | January 13, 1846 |
| Named for | James K. Polk |
| Seat | Des Moines |
| Largest city | Des Moines |
| Area | |
• Total | 592 sq mi (1,530 km2) |
| • Land | 574 sq mi (1,490 km2) |
| • Water | 18 sq mi (50 km2) 3.0% |
| Population (2020) | |
• Total | 492,401 |
• Estimate (2023) | 505,255  |
| • Density | 830/sq mi (320/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 3rd |
| Website | www |
Polk County is located in the U.S. state of Iowa. As of the 2020 census, the population was 492,401.[1] It is Iowa's most populous county, and home to over 15% of the state's residents. The county seat is Des Moines,[2] which is also the capital city of Iowa. Polk County is included in the Des Moines–West Des Moines, IA Metropolitan Statistical Area.[3]
- ^ "State & County QuickFacts". United States Census Bureau. Retrieved December 9, 2023.
- ^ "Find a County". National Association of Counties. Archived from the original on March 2, 2011. Retrieved June 7, 2011.
- ^ United States Office of Management and Budget. "Update of Statistical Area Definitions and Guidance on Their Uses" (PDF). pp. 5, 36. Archived from the original (PDF) on May 14, 2006. Retrieved July 21, 2006.