U.S. PLACE PROFILE
Decatur, IL
Decatur is a City in Macon County, Illinois. The loaded 2025 population estimate is 67,884.
Published locationIllinois
Population estimate67,8842025 loaded Census estimate
CountyMacon CountyPrimary loaded county
Place typeCityCensus place classification
Coordinates39.85598, -88.93375Census representative point
EXPLORE FROM DECATUR
Distance and nearby-place tools
Only tools with enough qualifying stored data are linked below.
Closest published places
Nearest qualifying Census places by straight-line distance.
Forsyth, IL5.1 miles · N
Mount Zion, IL5.6 miles · SE
Long Creek, IL5.8 miles · SE
Oreana, IL6.6 miles · NE
Harristown, IL6.7 miles · W
Warrensburg, IL8.6 miles · NW
County coverage
Some incorporated places cross county lines. These county-part values come from the loaded Census county-place-part population layer.
| County | 2025 population in this place part |
|---|---|
| Macon County | 67,884 |
DATA COVERAGE
What is available for Decatur
Geographic identityNearby placesPopulation estimate100-mile radius25-mile radius50-mile radius
PRIMARY GEOGRAPHIC SOURCE
U.S. Census Bureau
Place identity, coordinates and geographic identifiers are tied to the loaded Census source record for this location.