8 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Parker | 1 | 1,360 | 1,198 | 2.03% | 1,160 | 1 | City |
| Centerville | 2 | 974 | 926 | 0.83% | 1,353 | 1 | City |
| Marion | 3 | 896 | 848 | 0.9% | 1,032 | 1 | City |
| Viborg | 4 | 847 | 808 | 0.83% | 1,632 | 1 | City |
| Hurley | 5 | 388 | 378 | 0.52% | 630 | 1 | City |
| Chancellor | 6 | 318 | 300 | 0.95% | 1,445 | 0 | Town |
| Monroe | 7 | 165 | 159 | 0.61% | 435 | 0 | Town |
| Davis | 8 | 55 | 54 | 0% | 128 | 0 | Town |
Parker is the largest city in Turner County, with a population of 1,360.
Davis is the smallest city in Turner County, with a population of 55.
There are 8 cities in Turner County, South Dakota.