16 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Alexandria | 1 | 654 | 654 | 0% | 1,048 | 0.62 | City |
| Emery | 2 | 474 | 483 | -0.42% | 1,037 | 0.46 | City |
| Hanson township | 3 | 324 | 327 | -0.31% | 9 | 35.98 | Township |
| Rosedale township | 4 | 294 | 299 | -1.01% | 8 | 36.09 | Township |
| Beulah township | 5 | 269 | 266 | 0.37% | 7 | 36.05 | Township |
| Pleasant township | 6 | 255 | 256 | -0.39% | 7 | 35.55 | Township |
| Wayne township | 7 | 244 | 242 | 0% | 7 | 35.22 | Township |
| Jasper township | 8 | 178 | 175 | 0.56% | 5 | 35.34 | Township |
| Emery township | 9 | 151 | 135 | 2.72% | 4 | 35.72 | Township |
| Spring Lake township | 10 | 134 | 135 | -0.74% | 4 | 36.60 | Township |
| Worthen township | 11 | 121 | 122 | -0.82% | 3 | 35.90 | Township |
| Plano township | 12 | 96 | 93 | 1.05% | 3 | 36.81 | Township |
| Edgerton township | 13 | 91 | 88 | 1.11% | 3 | 36.18 | Township |
| Fulton | 14 | 86 | 85 | 0% | 101 | 0.85 | Town |
| Taylor township | 15 | 80 | 77 | 1.27% | 2 | 35.97 | Township |
| Farmer | 16 | 16 | 16 | 0% | 193 | 0.08 | Town |
Alexandria is the largest city in Hanson County, with a population of 654.
Farmer is the smallest city in Hanson County.
There are 16 cities in Hanson County, South Dakota.