Lost River, Idaho

Lost River, Idaho
City
Location in Custer County and the state of Idaho
Location in Custer County and the state of Idaho
Coordinates: 43°43′18″N 113°32′42″W / 43.72167°N 113.54500°W / 43.72167; -113.54500
CountryUnited States
StateIdaho
CountyCuster
Area
[1]
 • Total8.70 sq mi (22.53 km2)
 • Land8.69 sq mi (22.51 km2)
 • Water0.01 sq mi (0.03 km2)
Population
 (2020)[2]
 • Total42
 • Density7.8/sq mi (3.0/km2)
Time zoneUTC-7 (Mountain (MST))
 • Summer (DST)UTC-6 (MDT)
Area code208
FIPS code16-47890

Lost River is a city in Custer County, Idaho, United States. The population was 42 persons at the 2020 census.

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