Custer County, South Dakota Cities (2025)

7 cities

City
Rank
2025 Pop. ↓
2020 Pop.
Annual Change
Density
Area (mi²)
Type
Custer11,8011,940-1.53%7262 City
Hermosa2379387-0.52%4381 Town
Custer33743740%1231 Township
Buffalo Gap41601293.9%5230 Town
Pringle5105112-1.87%4340 Town
Fairburn670572.94%2140 Town
Custer727280%151 Township

Custer County Cities Summary

Largest City

Custer is the largest city in Custer County, with a population of 1,801.

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