Lemhi County
Also known as Lemhi County, Idaho, Lemhi County, ID
county in Idaho, United States
Key facts
- Country
- United States
- State
- Idaho
- Founded
- January 9, 1869
- Named after
- Fort Lemhi
- Seat
- Salmon
- Largest city
- Salmon
- Total
- 4,569 sq mi (11,830 km )
- Land
- 4,563 sq mi (11,820 km )
- Water
- 5.4 sq mi (14 km ) 0.1%
- Estimate 2025
- 8,474
- Density
- 1.748/sq mi (0.6747/km )
- Time zone
- UTC−7 ( Mountain )
- Summer dst
- UTC−6 ( MDT )
~13 min read
Article
Lemhi County is a county located in the U.S. state of Idaho. As of the 2020 census, the population was 7,974. The largest city and county seat is Salmon. The county was established in 1869 and named after Fort Lemhi (or Limhi), a remote Mormon missionary settlement from 1855 to 1858 on Bannock and Shoshone territory.
Geography