16 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Wessington Springs | 1 | 777 | 764 | 0.26% | 431 | 2 | City |
| Alpena | 2 | 222 | 207 | 1.37% | 136 | 2 | Town |
| Alpena | 3 | 96 | 87 | 2.13% | 3 | 33 | Township |
| Wessington Springs | 4 | 78 | 66 | 5.41% | 2 | 35 | Township |
| Blaine | 5 | 77 | 69 | 2.67% | 2 | 36 | Township |
| Franklin | 6 | 73 | 67 | 2.82% | 2 | 35 | Township |
| Pleasant | 7 | 62 | 53 | 5.08% | 2 | 35 | Township |
| Crow Lake | 8 | 55 | 50 | 3.77% | 2 | 35 | Township |
| Chery | 9 | 54 | 49 | 1.89% | 2 | 35 | Township |
| Lane | 10 | 47 | 47 | 0% | 101 | 0 | Town |
| Viola | 11 | 34 | 28 | 6.25% | 1 | 36 | Township |
| Anina | 12 | 21 | 21 | 0% | 1 | 35 | Township |
| Marlar | 13 | 20 | 20 | 0% | 1 | 35 | Township |
| Harmony | 14 | 16 | 16 | 0% | 0.00 | 35 | Township |
| Crow | 15 | 12 | 12 | 0% | 0.00 | 35 | Township |
| Logan | 16 | 7 | 6 | 0% | 0.00 | 35 | Township |
Wessington Springs is the largest city in Jerauld County, with a population of 777.
Logan is the smallest city in Jerauld County, with a population of 7.
There are 16 cities in Jerauld County, South Dakota.