Valley County, Idaho Cities (2026)

3 cities

City
Rank
2026 Pop. ↓
2020 Pop.
Annual Change
Density
Area (mi²)
Type
McCall14,2973,7182.31%4749 City
Cascade21,0381,0010.58%2524 City
Donnelly32572510.39%3601 City

Valley County Cities Summary

Largest City

McCall is the largest city in Valley County, with a population of 4,297.

Smallest City

Donnelly is the smallest city in Valley County, with a population of 257.

10 Largest Cities

There are 3 cities in Valley County, Idaho.

Location of Valley County