12 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Murdo | 1 | 430 | 474 | -2.05% | 684 | 0.63 | City |
| Okaton | 2 | 54 | 48 | 8% | 2 | 29.77 | CDP |
| Draper | 3 | 38 | 47 | -5% | 58 | 0.65 | Town |
| Williams Creek township | 4 | 37 | 43 | -2.63% | 1 | 73.56 | Township |
| Okaton township | 5 | 33 | 39 | -2.94% | 1 | 45.85 | Township |
| Draper township | 6 | 28 | 36 | -6.67% | 1 | 35.09 | Township |
| Dunkel township | 7 | 13 | 14 | 0% | 0.00 | 36 | Township |
| Mussman township | 8 | 13 | 14 | 0% | 0.00 | 29.90 | Township |
| Scovil township | 9 | 13 | 14 | 0% | 0.00 | 35.68 | Township |
| Zickrick township | 10 | 10 | 11 | 0% | 0.00 | 32.57 | Township |
| Mullen township | 11 | 4 | 4 | 0% | 0.00 | 36.09 | Township |
| Kolls township | 12 | 2 | 5 | -33.33% | 0.00 | 35.52 | Township |
Murdo is the largest city in Jones County, with a population of 430.
Kolls township is the smallest city in Jones County.
There are 12 cities in Jones County, South Dakota.