Fairfield city, Illinois
Official LSAD Designation: Fairfield city • Census GEOID: 1724816
• Wayne County
Fairfield city is an incorporated city in Wayne County, Illinois. According to official records from the Census (2025), Fairfield city had an estimated population of 4,794 residents. Official Census Bureau geographic records classify this community under LSAD designation Fairfield city (GEOID 1724816).
Local Government Administration U.S. Census Bureau GMAF
City Of Fairfield
Municipal
Official Title:
Mayor
Address:
109 NE 2ND ST, FAIRFIELD IL 62837-2029
County Of Wayne
County
Official Title:
County Clerk
Address:
PO BOX 187, FAIRFIELD IL 62837-0187
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 4,794 | 2025 |
| Median Household Income | $41,989 | 2020-2024 |
| Median Home Value | $88,800 | 2020-2024 |
| Land Area | 4.10 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).