26 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 |
| Home | 5 | 411 | 391 | 0.24% | 15 | 28 | Township |
| Hurley | 6 | 388 | 378 | 0.52% | 630 | 1 | City |
| Germantown | 7 | 356 | 344 | -0.28% | 10 | 36 | Township |
| Chancellor | 8 | 318 | 300 | 0.95% | 1,445 | 0 | Town |
| Parker | 9 | 281 | 263 | 0.72% | 8 | 35 | Township |
| Swan Lake | 10 | 268 | 257 | 0% | 8 | 35 | Township |
| Middleton | 11 | 261 | 252 | -0.38% | 7 | 35 | Township |
| Spring Valley | 12 | 241 | 235 | -0.41% | 7 | 36 | Township |
| Childstown | 13 | 212 | 205 | -0.47% | 6 | 36 | Township |
| Turner | 14 | 197 | 190 | -0.51% | 6 | 36 | Township |
| Marion | 15 | 192 | 179 | 1.05% | 5 | 35 | Township |
| Daneville | 16 | 190 | 181 | 0% | 5 | 36 | Township |
| Brothersfield | 17 | 189 | 173 | 1.61% | 7 | 28 | Township |
| Centerville | 18 | 185 | 178 | -0.54% | 5 | 35 | Township |
| Rosefield | 19 | 183 | 170 | 1.1% | 5 | 36 | Township |
| Monroe | 20 | 180 | 167 | 1.12% | 6 | 28 | Township |
| Hurley | 21 | 170 | 166 | -0.58% | 5 | 35 | Township |
| Norway | 22 | 167 | 157 | 0.6% | 5 | 36 | Township |
| Monroe | 23 | 165 | 159 | 0.61% | 435 | 0 | Town |
| Dolton | 24 | 120 | 115 | 0% | 4 | 29 | Township |
| Davis | 25 | 55 | 54 | 0% | 128 | 0 | Town |
| Centerville | 26 | 41 | 33 | 7.89% | 1 | 35 | Township |
Parker is the largest city in Turner County, with a population of 1,360.
Centerville is the smallest city in Turner County, with a population of 41.
There are 26 cities in Turner County, South Dakota.