Clark County, Idaho Cities (2025)

2 cities

City
Rank
2025 Pop. ↓
2020 Pop.
Change
Density
Area (mi²)
Type
Dubois15255170.38%1922.73 City
Spencer229280%251.14 City

Clark County Cities Summary

Largest City

Dubois is the largest city in Clark County, with a population of 525.

Smallest City

Spencer is the smallest city in Clark County.

10 Largest Cities

There are 2 cities in Clark County, Idaho.