Geographic reference
Jefferson County, Missouri
Jefferson County is a county or county-equivalent in Missouri.
Reference details
- State
- Missouri (MO)
- Census GEOID
- 29099
- Land area
- 1,699.142 km²
- Water area
- 20.247 km²
- Representative point
- 38.257628, -90.543694
View point on map ↗
Geographic facts: 2026 U.S. Census Gazetteer. Coordinates identify a representative point, not the full geographic boundary.