Sinai town, South Dakota
Official LSAD Designation: Sinai town • Census GEOID: 4658900
• Brookings County
Sinai town is an incorporated town in Brookings County, South Dakota. According to official records from the Census (2025), Sinai town had an estimated population of 102 residents. Official Census Bureau geographic records classify this community under LSAD designation Sinai town (GEOID 4658900).
Local Government Administration U.S. Census Bureau GMAF
Town Of Sinai
Municipal
Official Title:
Finance Officer
Address:
PO BOX 86, SINAI SD 57061-0086
County Of Brookings
County
Official Title:
Commission Department Director
Address:
520 3RD ST, STE 210, BROOKINGS SD 57071
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 102 | 2025 |
| Median Household Income | $56,875 | 2020-2024 |
| Median Home Value | $89,300 | 2020-2024 |
| Land Area | 0.37 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).