11 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Murdo | 1 | 460 | 477 | -0.86% | 731 | 1 | City |
| Williams Creek | 2 | 41 | 43 | 2.5% | 1 | 74 | Township |
| Draper | 3 | 40 | 47 | -4.76% | 62 | 1 | Town |
| Okaton | 4 | 36 | 39 | 0% | 1 | 46 | Township |
| Draper | 5 | 32 | 35 | 0% | 1 | 35 | Township |
| Dunkel | 6 | 13 | 14 | 0% | 0.00 | 36 | Township |
| Mussman | 7 | 13 | 14 | 0% | 0.00 | 30 | Township |
| Zickrick | 8 | 11 | 12 | 0% | 0.00 | 33 | Township |
| Scovil | 9 | 10 | 11 | 0% | 0.00 | 36 | Township |
| Kolls | 10 | 5 | 5 | 0% | 0.00 | 36 | Township |
| Mullen | 11 | 5 | 5 | 0% | 0.00 | 36 | Township |
Murdo is the largest city in Jones County, with a population of 460.
Mullen is the smallest city in Jones County, with a population of 5.
There are 11 cities in Jones County, South Dakota.