| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Morristown | 1 | 42 | 44 | -2.33% | 120 | 0 | Town |
Morristown is the largest city in Corson County, with a population of 42.
Morristown is the smallest city in Corson County, with a population of 42.
There is 1 city in Corson County, South Dakota.