10 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Redfield | 1 | 2,050 | 2,203 | -1.2% | 1,063 | 2 | City |
| Tulare | 2 | 200 | 211 | -0.99% | 781 | 0 | Town |
| Doland | 3 | 191 | 202 | -1.04% | 325 | 1 | City |
| Mellette | 4 | 190 | 198 | -0.52% | 742 | 0 | City |
| Conde | 5 | 137 | 143 | -0.72% | 243 | 1 | City |
| Northville | 6 | 131 | 139 | -0.76% | 348 | 0 | Town |
| Frankfort | 7 | 128 | 136 | -0.78% | 162 | 1 | City |
| Ashton | 8 | 102 | 110 | -0.97% | 233 | 0 | City |
| Brentford | 9 | 85 | 87 | 0% | 521 | 0 | Town |
| Turton | 10 | 51 | 54 | 0% | 139 | 0 | Town |
Redfield is the largest city in Spink County, with a population of 2,050.
Turton is the smallest city in Spink County, with a population of 51.
There are 10 cities in Spink County, South Dakota.