Brant Lake city, South Dakota
Official LSAD Designation: Brant Lake city • Census GEOID: 4607040
• Lake County
Brant Lake city is an incorporated city in Lake County, South Dakota. According to official records from the Census (2025), Brant Lake city had an estimated population of 56 residents. Official Census Bureau geographic records classify this community under LSAD designation Brant Lake city (GEOID 4607040).
Local Government Administration U.S. Census Bureau GMAF
Town Of Brant Lake
Municipal
Official Title:
City Clerk
Address:
PO BOX 4, BRANT LAKE SD 57016-0004
County Of Lake
County
Official Title:
Lake County Auditor
Address:
200 E CENTER ST, STE 1, MADISON SD 57042-2956
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 56 | 2025 |
| Median Household Income | $104,318 | 2020-2024 |
| Median Home Value | $455,000 | 2020-2024 |
| Land Area | 0.15 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).