Timber Lake city, South Dakota
Official LSAD Designation: Timber Lake city • Census GEOID: 4663620
• Dewey County
Timber Lake city is an incorporated city in Dewey County, South Dakota. According to official records from the Census (2025), Timber Lake city had an estimated population of 548 residents. Official Census Bureau geographic records classify this community under LSAD designation Timber Lake city (GEOID 4663620).
Local Government Administration U.S. Census Bureau GMAF
City Of Timber Lake
Municipal
Official Title:
City Finance Officer
Address:
PO BOX 431, TIMBER LAKE SD 57656-0431
County Of Dewey
County
Official Title:
Deputy County Auditor
Address:
PO BOX 277, TIMBER LAKE SD 57656-0277
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 548 | 2025 |
| Median Household Income | $60,694 | 2020-2024 |
| Median Home Value | $81,400 | 2020-2024 |
| Land Area | 0.61 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).