Fairfax town, South Dakota
Official LSAD Designation: Fairfax town • Census GEOID: 4620380
• Gregory County
Fairfax town is an incorporated town in Gregory County, South Dakota. According to official records from the Census (2025), Fairfax town had an estimated population of 100 residents. Official Census Bureau geographic records classify this community under LSAD designation Fairfax town (GEOID 4620380).
Local Government Administration U.S. Census Bureau GMAF
Town Of Fairfax
Municipal
Official Title:
Mayor
Address:
PO BOX 295, FAIRFAX SD 57335-0295
County Of Gregory
County
Official Title:
Gregory County Auditor
Address:
PO BOX 437, BURKE SD 57523-0437
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 100 | 2025 |
| Median Household Income | $72,656 | 2020-2024 |
| Median Home Value | $62,100 | 2020-2024 |
| Land Area | 0.30 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).