Grenville town, South Dakota
Official LSAD Designation: Grenville town • Census GEOID: 4626220
• Day County
Grenville town is an incorporated town in Day County, South Dakota. According to official records from the Census (2025), Grenville town had an estimated population of 48 residents. Official Census Bureau geographic records classify this community under LSAD designation Grenville town (GEOID 4626220).
Local Government Administration U.S. Census Bureau GMAF
Town Of Grenville
Municipal
Official Title:
Finance Officer
Address:
PO BOX 12, GRENVILLE SD 57239-0012
County Of Day
County
Official Title:
Chairman
Address:
711 W 1ST ST, WEBSTER SD 57274-1364
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 48 | 2025 |
| Median Household Income | $90,385 | 2020-2024 |
| Median Home Value | $41,400 | 2020-2024 |
| Land Area | 0.24 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).