16 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Wessington Springs | 1 | 759 | 764 | -0.13% | 421 | 1.80 | City |
| Alpena | 2 | 214 | 208 | 0.47% | 131 | 1.63 | Town |
| Alpena township | 3 | 94 | 87 | 2.17% | 3 | 33.10 | Township |
| Blaine township | 4 | 75 | 71 | 1.35% | 2 | 35.54 | Township |
| Wessington Springs township | 5 | 71 | 67 | 1.43% | 2 | 34.78 | Township |
| Franklin township | 6 | 63 | 65 | -1.56% | 2 | 35.11 | Township |
| Pleasant township | 7 | 51 | 50 | 0% | 1 | 35.10 | Township |
| Lane | 8 | 50 | 47 | 2.04% | 108 | 0.47 | Town |
| Crow Lake township | 9 | 50 | 50 | 0% | 1 | 34.55 | Township |
| Chery township | 10 | 49 | 49 | 0% | 1 | 34.84 | Township |
| Viola township | 11 | 30 | 29 | 0% | 1 | 35.56 | Township |
| Anina township | 12 | 22 | 22 | 0% | 1 | 34.84 | Township |
| Marlar township | 13 | 19 | 19 | 0% | 1 | 35.47 | Township |
| Harmony township | 14 | 18 | 18 | 0% | 1 | 34.55 | Township |
| Crow township | 15 | 12 | 12 | 0% | 0.00 | 35.32 | Township |
| Logan township | 16 | 7 | 7 | 0% | 0.00 | 34.81 | Township |
Wessington Springs is the largest city in Jerauld County, with a population of 759.
Logan township is the smallest city in Jerauld County.
There are 16 cities in Jerauld County, South Dakota.