Gregory County, South Dakota Cities (2025)

7 cities

City
Rank
2025 Pop. ↓
2020 Pop.
Change
Density
Area (mi²)
Type
Gregory11,2161,230-0.25%7071.72 City
Burke25775770%1,0320.56 City
Bonesteel32582550.39%7290.35 City
Fairfax4103980.98%3400.30 Town
Dallas58387-1.19%1640.51 Town
Herrick676750%1480.52 Town
St. Charles79812.5%460.20 CDP

Gregory County Cities Summary

Largest City

Gregory is the largest city in Gregory County, with a population of 1,216.

Smallest City

St. Charles is the smallest city in Gregory County.

10 Largest Cities

There are 7 cities in Gregory County, South Dakota.