O’Brien County Map, Iowa
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O’Brien County, Iowa
O’Brien County is in northwest Iowa. It’s a rural area with a strong farming community. Primghar is the county seat, and is known for its unique and historic courthouse.
Although it can be a bit quiet here, agriculture is key. The Prairie Heritage Center offers a look into the region’s natural history, with exhibits and trails overlooking the Little Sioux River.
U.S. Highway 18 and 59 run through the county, making it accessible to Sanborn, Hartley and Calumet. O’Brien County is where the landscape speaks of a simpler, hardworking life. It’s a peaceful stop in Iowa’s heartland.
| Category | Details |
|---|---|
| County Name | O’Brien County |
| County Seat | Primghar |
| Population | 15,000 |
| Cities, Towns, and Communities | Primghar, Sheldon, Sanborn, Hartley, and several smaller communities |
| Interstates and Highways | U.S. Highway 18, U.S. Highway 59, Iowa Highway 9 |
| FIPS Code | 19-141 |
| Total Area (Land and Water) | 573 square miles (land: 572 sq mi, water: 1 sq mi) |
| Adjacent Counties (and Direction) | Osceola County (North), Clay County (East), Cherokee County (South), Sioux County (West) |
| Time Zone | Central Time Zone (CST) |
| State | Iowa |
| Coordinates | 43.14°N, 95.55°W |
| Etymology | Named in honor of a prominent local figure, William Smith O’Brien |
| Major Landmarks | Prairie Heritage Center, Sheldon Historical Museum, and Hartley Historical Society Museum |
| Website | O’Brien County Website |
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