Fairfield city, Ohio
Official LSAD Designation: Fairfield city • Census GEOID: 3925970
• Butler County / Hamilton County
Fairfield city is an incorporated city in Butler County, Hamilton County, Ohio. According to official records from the Census (2025), Fairfield city had an estimated population of 44,682 residents. Official Census Bureau geographic records classify this community under LSAD designation Fairfield city (GEOID 3925970).
Local Government Administration U.S. Census Bureau GMAF
City Of Fairfield
Municipal
Official Title:
Finance Director
Address:
5350 PLEASANT AVE, FAIRFIELD OH 45014-3597
County Of Butler
County
Official Title:
Assistant County Administrator
Address:
315 HIGH ST, FL 6, HAMILTON OH 45011-6056
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 44,682 | 2025 |
| Median Household Income | $77,937 | 2020-2024 |
| Median Home Value | $234,500 | 2020-2024 |
| Land Area | 20.83 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).