O'Brien County, Iowa
O'Brien County | |
|---|---|
Location within the U.S. state of Iowa | |
Iowa's location within the U.S. | |
| Coordinates: 43°04′53″N 95°37′34″W / 43.081388888889°N 95.626111111111°W | |
| Country | United States |
| State | Iowa |
| Founded | January 15, 1851 |
| Named after | William Smith O'Brien |
| Seat | Primghar |
| Largest city | Sheldon |
| Area | |
• Total | 573 sq mi (1,480 km2) |
| • Land | 573 sq mi (1,480 km2) |
| • Water | 0.2 sq mi (0.5 km2) 0.03% |
| Population (2020) | |
• Total | 14,182 |
| • Density | 25/sq mi (9.6/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 4th |
| Website | obriencounty |
O'Brien County is a county in the U.S. state of Iowa. As of the 2020 United States census, the population was 14,182. The county seat is Primghar.