15 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Mitchell | 1 | 15,593 | 15,663 | -0.09% | 1,353 | 11.53 | City |
| Prosper township | 2 | 700 | 701 | -0.14% | 19 | 36.02 | Township |
| Mount Vernon | 3 | 459 | 458 | 0% | 1,350 | 0.34 | City |
| Ethan | 4 | 361 | 360 | 0% | 1,416 | 0.26 | Town |
| Beulah township | 5 | 355 | 355 | 0% | 10 | 35.84 | Township |
| Perry township | 6 | 298 | 294 | 0.34% | 9 | 34.04 | Township |
| Rome township | 7 | 264 | 262 | 0.38% | 7 | 35.86 | Township |
| Mount Vernon township | 8 | 163 | 166 | -0.61% | 5 | 36.17 | Township |
| Lisbon township | 9 | 118 | 118 | 0% | 3 | 36.11 | Township |
| Tobin township | 10 | 117 | 119 | -0.85% | 3 | 36.25 | Township |
| Baker township | 11 | 101 | 96 | 2.02% | 3 | 36.19 | Township |
| Blendon township | 12 | 89 | 84 | 2.3% | 2 | 37.29 | Township |
| Union township | 13 | 74 | 75 | 0% | 2 | 36.17 | Township |
| New Elm Spring Colony | 14 | 54 | 77 | 8% | 109 | 0.50 | CDP |
| Millbrook Colony | 15 | 15 | 5 | 7.14% | 64 | 0.23 | CDP |
Mitchell is the largest city in Davison County, with a population of 15,593.
Millbrook Colony is the smallest city in Davison County.
There are 15 cities in Davison County, South Dakota.