9 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Parker | 1 | 1,319 | 1,199 | 1.85% | 1,125 | 1.17 | City |
| Centerville | 2 | 979 | 924 | 1.14% | 1,360 | 0.72 | City |
| Marion | 3 | 894 | 843 | 1.13% | 1,030 | 0.87 | City |
| Viborg | 4 | 850 | 809 | 0.95% | 1,638 | 0.52 | City |
| Hurley | 5 | 390 | 377 | 0.78% | 633 | 0.62 | City |
| Chancellor | 6 | 324 | 303 | 1.25% | 1,473 | 0.22 | Town |
| Monroe | 7 | 162 | 156 | 0.62% | 427 | 0.38 | Town |
| Cameron Colony | 8 | 56 | 0 | 7.69% | 459 | 0.12 | CDP |
| Davis | 9 | 56 | 55 | 0% | 130 | 0.43 | Town |
Parker is the largest city in Turner County, with a population of 1,319.
Davis is the smallest city in Turner County.
There are 9 cities in Turner County, South Dakota.