Custer County, South Dakota Cities (2026)

7 cities

City
Rank
2026 Pop. ↓
2020 Pop.
Annual Change
Density
Area (mi²)
Type
Custer11,7731,940-1.55%7152 City
Hermosa2378387-0.26%4371 Town
Custer33743740%1231 Township
Buffalo Gap41661293.75%5420 Town
Pringle5104112-0.95%4300 Town
Fairburn673574.29%2230 Town
Custer727280%151 Township

Custer County Cities Summary

Largest City

Custer is the largest city in Custer County, with a population of 1,773.

Smallest City

Custer is the smallest city in Custer County, with a population of 27.

10 Largest Cities

There are 7 cities in Custer County, South Dakota.

Location of Custer County