THE DECATUR LAND BRIEF
Land in the
Illinois/Indiana Prairies setting.
Decatur city has 44.2 square miles of land in Macon County. Its Census reference point is in Illinois/Indiana Prairies, within Central Corn Belt Plains.
Glaciated plains historically supported tallgrass prairie mixed with oak and hickory woodland. Dark prairie soils and broad farming landscapes distinguish much of the Central Corn Belt.
Regional context: Central Corn Belt Plains ↗ · Classification at the Census reference point
Decatur and Macon County
Decatur is associated with Macon County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
Decatur by land and water
The Census records 4.7 square miles of water within Decatur, or 9.6% of its total area. It is 8.7 percentage points higher than the 0.9% recorded for Macon County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, Decatur city has 1.5 times the land area of nearby Decatur township (29.1 square miles). These areas describe boundaries, not comparable property prices.

