O'Brien County, Iowa
O'Brien County profile, demographic data, and geographic information.
Cities & Towns in O'Brien County
Constituent municipalities and census communities located within O'Brien County.
| City / Town Name | Classification | Census GEOID | Land Area |
|---|---|---|---|
| Archer city | City | 1902530 | 0.09 sq mi |
| Calumet city | City | 1910090 | 0.27 sq mi |
| Hartley city | City | 1934725 | 1.33 sq mi |
| Paullina city | City | 1961905 | 0.93 sq mi |
| Primghar city | City | 1964650 | 1.36 sq mi |
| Sanborn city | City | 1970410 | 1.88 sq mi |
| Sheldon city | City | 1972390 | 4.83 sq mi |
| Sutherland city | City | 1976485 | 0.85 sq mi |