Geographic reference
O'Brien County, Iowa
O'Brien County is a county or county-equivalent in Iowa.
Reference details
- State
- Iowa (IA)
- Census GEOID
- 19141
- Land area
- 1,484.154 km²
- Water area
- 0.447 km²
- Representative point
- 43.083746, -95.625624
View point on map ↗
Geographic facts: 2026 U.S. Census Gazetteer. Coordinates identify a representative point, not the full geographic boundary.