Lost River city, Idaho
Official LSAD Designation: Lost River city • Census GEOID: 1647890
• Custer County
Lost River city is an incorporated city in Custer County, Idaho. According to official records from the Census ACS 5-Year 2024 (2020-2024), Lost River city had an estimated population of 55 residents. Official Census Bureau geographic records classify this community under LSAD designation Lost River city (GEOID 1647890).
Local Government Administration U.S. Census Bureau GMAF
County Of Custer
County
Official Title:
Clerk
Address:
PO BOX 385, CHALLIS ID 83226-0385
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 55 | 2020-2024 |
| Median Household Income | Data unavailable | ACS 5-Year |
| Median Home Value | Data unavailable | ACS 5-Year |
| Land Area | 8.32 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).