THE OSAGE COUNTY LAND BRIEF
Land in the
Osage/Gasconade Hills setting.
Osage County has 606.6 square miles of land in Missouri. 3 mapped landscape regions meet across Osage County: Osage/Gasconade Hills, River Hills, Central Plateau.
Wooded uplands over limestone, dolomite and sandstone characterize the Ozarks. Springs, caves and spring-fed streams are widespread regional features within a landscape of uneven plateaus and valleys.
Regional context: Ozark Highlands ↗ · Regional mapping across the county footprint
Where the landscape changes
Osage County intersects 3 mapped regional units. The largest mapped shares are:
- Osage/Gasconade Hills72.1%
- River Hills17.3%
- Central Plateau10.6%
Interior River Valleys and Hills in Osage County
Broad terraced river valleys contrast with wooded slopes and dissected glacial plains. Bottomland settings and upland oak landscapes occur close together across the Interior River Valleys and Hills.
Read the regional source ↗Finding your parcel within Osage County
The atlas lists 8 cities, towns, townships, and Census communities associated with Osage County, including Belle, Linn, Freeburg. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Osage County by land and water
The Census records 6.85 square miles of water within Osage County, or 1.1% of its total area. That share is close to Osage County’s 1.1%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Osage County has 520.2 times the land area of nearby Linn city (1.17 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Callaway County, Cole County, Gasconade County, Maries County, Miller County, Montgomery County within Missouri. A tract near one of these lines should be matched to the county identifier on its own records.

