THE DECATUR COUNTY LAND BRIEF
Land in the
Loess Flats and Till Plains setting.
Decatur County has 531.9 square miles of land in Iowa. The mapped landscape region in Decatur County is Loess Flats and Till Plains.
Irregular plains form a transition between northern agricultural country and more wooded uplands to the south and east. Grassland and forest historically mixed, with wider woodland belts beside streams.
Regional context: Central Irregular Plains ↗ · Regional mapping across the county footprint
Finding your parcel within Decatur County
The atlas lists 10 cities, towns, townships, and Census communities associated with Decatur County, including Lamoni, Leon, Garden Grove. The list includes overlapping geography types and does not divide the county into exclusive service areas.
Decatur County by land and water
The Census records 1.6 square miles of water within Decatur County, or 0.3% of its total area. That share is close to Decatur County’s 0.3%. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Decatur County has 169.8 times the land area of nearby Leon city (3.13 square miles). These areas describe boundaries, not comparable property prices.
The Census boundary meets Clarke County, Lucas County, Ringgold County, Union County, Wayne County within Iowa. A tract near one of these lines should be matched to the county identifier on its own records.

