THE OSCEOLA COUNTY LAND BRIEF
Land in the
Loess Prairies setting.
Osceola County has 398.7 square miles of land in Iowa. 2 mapped landscape regions meet across Osceola County: Loess Prairies, Des Moines Lobe.
Glacial till plains and windblown loess hills make up the Western Corn Belt landscape. Near-level and rolling terrain are interspersed with steeper river valleys and hills.
Regional context: Western Corn Belt Plains ↗ · Regional mapping across the county footprint
Where the landscape changes
Osceola County intersects 2 mapped regional units. The largest mapped shares are:
- Loess Prairies55.3%
- Des Moines Lobe44.7%
Finding your parcel within Osceola County
The atlas lists 5 cities, towns, townships, and Census communities associated with Osceola County, including Sibley, Ocheyedan, Ashton. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Osceola County by land and water
The Census records 0.71 square miles of water within Osceola County, or 0.2% of its total area. That share is close to Osceola County’s 0.2%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Osceola County has 352.2 times the land area of nearby Ocheyedan city (1.13 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Clay County, Dickinson County, Lyon County, O'Brien County, Sioux County within Iowa. A tract near one of these lines should be matched to the county identifier on its own records.

