Geographic reference
Johnson County, Iowa
Johnson County is a county or county-equivalent in Iowa.
Reference details
- State
- Iowa (IA)
- Census GEOID
- 19103
- Land area
- 1,587.656 km²
- Water area
- 26.071 km²
- Representative point
- 41.670668, -91.590546
View point on map ↗
Geographic facts: 2026 U.S. Census Gazetteer. Coordinates identify a representative point, not the full geographic boundary.