Valley County, Idaho Cities (2026)

City
Rank
2026 Pop. ↓
2020 Pop.
Annual Change
Density (/mi²)
Area (mi²)
Type
McCall14,2333,7172.42%4679 City
Cascade21,0241,0030.59%2484 City
Donnelly32562540.39%3591 City

Valley County Cities Summary

Largest City

McCall is the largest city in Valley County, with a population of 4,233.

Smallest City

Donnelly is the smallest city in Valley County, with a population of 256.

10 Largest Cities

There are 3 cities in Valley County, Idaho.

Location of Valley County