Black Hawk County | |
|---|---|
 Black Hawk County Courthouse in Waterloo | |
 Logo | |
 Location within the U.S. state of Iowa | |
 Iowa's location within the U.S. | |
| Coordinates: 42°28′08″N 92°18′19″W / 42.468888888889°N 92.305277777778°W | |
| Country |  United States |
| State |  Iowa |
| Founded | 1843 |
| Named for | Black Hawk |
| Seat | Waterloo |
| Largest city | Waterloo |
| Area | |
| • Total | 573 sq mi (1,480 km2) |
| • Land | 566 sq mi (1,470 km2) |
| • Water | 6.9 sq mi (18 km2) 1.2% |
| Population (2020) | |
| • Total | 131,144 |
| • Density | 230/sq mi (88/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 2nd |
| Website | www |
Black Hawk County is a county in the northeastern part of the U.S. state of Iowa. As of the 2020 census, the population was 131,144,[1] making it Iowa's fifth-most populous county. The county seat is Waterloo.[2]
Black Hawk County is part of the Waterloo – Cedar Falls metropolitan area.[3]
- ^ "2020 Census State Redistricting Data". census.gov. United states Census Bureau. Retrieved August 12, 2021.
- ^ "Find a County". National Association of Counties. Archived from the original on May 31, 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.