13 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Mitchell | 1 | 15,594 | 15,675 | -0.08% | 1,353 | 12 | City |
| Prosper | 2 | 698 | 701 | -0.29% | 19 | 36 | Township |
| Mount Vernon | 3 | 457 | 457 | 0% | 1,344 | 0 | City |
| Ethan | 4 | 358 | 358 | 0% | 1,404 | 0 | Town |
| Beulah | 5 | 354 | 356 | -0.28% | 10 | 36 | Township |
| Perry | 6 | 298 | 298 | 0% | 9 | 34 | Township |
| Rome | 7 | 257 | 262 | -0.77% | 7 | 36 | Township |
| Mount Vernon | 8 | 169 | 167 | 0.6% | 5 | 36 | Township |
| Lisbon | 9 | 122 | 117 | 0.83% | 3 | 36 | Township |
| Tobin | 10 | 116 | 118 | -0.85% | 3 | 36 | Township |
| Baker | 11 | 95 | 97 | -1.04% | 3 | 36 | Township |
| Blendon | 12 | 79 | 81 | -1.25% | 2 | 37 | Township |
| Union | 13 | 71 | 73 | -1.39% | 2 | 36 | Township |
Mitchell is the largest city in Davison County, with a population of 15,594.
Union is the smallest city in Davison County, with a population of 71.
There are 13 cities in Davison County, South Dakota.