4 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Alexandria | 1 | 659 | 653 | 0.15% | 1,056 | 1 | City |
| Emery | 2 | 468 | 483 | -0.43% | 1,024 | 0 | City |
| Fulton | 3 | 84 | 84 | 0% | 98 | 1 | Town |
| Farmer | 4 | 15 | 15 | 0% | 181 | 0 | Town |
Alexandria is the largest city in Hanson County, with a population of 659.
Farmer is the smallest city in Hanson County, with a population of 15.
There are 4 cities in Hanson County, South Dakota.