Decatur city, Indiana
Official LSAD Designation: Decatur city • Census GEOID: 1817074
• Adams County
Decatur city is an incorporated city in Adams County, Indiana. According to official records from the Census (2025), Decatur city had an estimated population of 10,090 residents. Official Census Bureau geographic records classify this community under LSAD designation Decatur city (GEOID 1817074).
Local Government Administration U.S. Census Bureau GMAF
City Of Decatur
Municipal
Official Title:
Mayor
Address:
172 N 2ND ST, DECATUR IN 46733-1609
County Of Adams
County
Official Title:
Deputy Auditor
Address:
313 W JEFFERSON ST, DECATUR IN 46733-1603
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 10,090 | 2025 |
| Median Household Income | $58,646 | 2020-2024 |
| Median Home Value | $142,800 | 2020-2024 |
| Land Area | 6.10 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).