Lemhi County, Idaho Cities (2025)

2 cities

City
Rank
2025 Pop. ↓
2020 Pop.
Change
Density
Area (mi²)
Type
Salmon13,4133,1171.76%1,3602.51 City
Leadore2103951.98%3330.31 City

Lemhi County Cities Summary

Largest City

Salmon is the largest city in Lemhi County, with a population of 3,413.

Smallest City

Leadore is the smallest city in Lemhi County.

10 Largest Cities

There are 2 cities in Lemhi County, Idaho.