O'Brien County, Iowa
8 ZIP codes · 573.04 sq mi of land · FIPS 19141
| Population | 14,126 |
|---|---|
| State | Iowa |
| FIPS code | 19141 |
| Time zone | Central |
| Land area | 573.04 sq mi |
| Center (lat, long) | 43.0837, -95.6256 |
Area codes in this area
These are the area codes that most often serve O'Brien County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Cities and towns (largest first)
CalumetGranvillePaullinaSutherlandArcherPrimgharSanbornHartley
ZIP codes in O'Brien County
51009 Calumet51022 Granville51046 Paullina51058 Sutherland51231 Archer51245 Primghar51248 Sanborn51346 Hartley
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.