Marion County, South Carolina Cities (2025)

6 cities

City
Rank
2025 Pop. ↓
2020 Pop.
Change
Density
Area (mi²)
Type
Marion16,0476,416-1.21%1,3514.48 City
Mullins23,8034,008-1.07%1,2593.02 City
Centenary37315917.18%7740.94 CDP
Daviston43084467.32%2391.29 CDP
Sellers5144148-0.69%2150.67 Town
Rains6123677.9%921.34 CDP

Marion County Cities Summary

Largest City

Marion is the largest city in Marion County, with a population of 6,047.

Smallest City

Rains is the smallest city in Marion County.

10 Largest Cities

There are 6 cities in Marion County, South Carolina.