Black Hawk County, Iowa
Black Hawk County, Iowa | |
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Black Hawk County Courthouse in Waterloo | |
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Logo | |
Location within the U.S. state of Iowa | |
| Coordinates: 42°28′08″N 92°18′19″W / 42.468888888889°N 92.305277777778°W | |
| Country | United States |
| State | Iowa |
| Founded | 1843 |
| Named after | 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 |
• Estimate (2024) | 132,348 |
| • Density | 232/sq mi (89.5/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 2nd |
| Website | www |
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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, making it Iowa's fifth-most populous county. The county seat is Waterloo.
Black Hawk County is part of the Waterloo – Cedar Falls metropolitan area.