31 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Parkston | 1 | 1,538 | 1,557 | -0.26% | 1,177 | 1 | City |
| Freeman | 2 | 1,302 | 1,331 | -0.46% | 874 | 1 | City |
| Menno | 3 | 618 | 617 | 0% | 1,186 | 1 | City |
| Tripp | 4 | 561 | 570 | -0.36% | 946 | 1 | City |
| Sweet | 5 | 375 | 355 | 2.18% | 10 | 36 | Township |
| Wittenberg | 6 | 298 | 290 | 0.68% | 6 | 53 | Township |
| Foster | 7 | 284 | 267 | 2.53% | 10 | 29 | Township |
| Wolf Creek | 8 | 231 | 232 | -0.86% | 6 | 36 | Township |
| Susquehanna | 9 | 188 | 188 | 0.53% | 5 | 35 | Township |
| Valley | 10 | 167 | 169 | -0.6% | 5 | 36 | Township |
| Dimock | 11 | 155 | 148 | 0.65% | 901 | 0 | Town |
| Kaylor | 12 | 128 | 132 | -0.78% | 4 | 36 | Township |
| Cross Plains | 13 | 127 | 127 | -0.78% | 4 | 29 | Township |
| Starr | 14 | 126 | 126 | -0.79% | 4 | 29 | Township |
| Molan | 15 | 123 | 124 | -0.81% | 3 | 36 | Township |
| Liberty | 16 | 121 | 121 | 0% | 4 | 34 | Township |
| Grandview | 17 | 111 | 113 | -0.89% | 3 | 35 | Township |
| Kassel | 18 | 110 | 107 | 0.92% | 3 | 36 | Township |
| Milltown | 19 | 102 | 103 | -0.97% | 3 | 36 | Township |
| Silver Lake | 20 | 98 | 99 | -1.01% | 3 | 28 | Township |
| German | 21 | 94 | 95 | -1.05% | 3 | 35 | Township |
| Fair | 22 | 88 | 89 | -1.12% | 3 | 35 | Township |
| Kulm | 23 | 83 | 84 | -1.19% | 2 | 35 | Township |
| Capital | 24 | 81 | 82 | -1.22% | 2 | 36 | Township |
| Sharon | 25 | 78 | 75 | 2.63% | 2 | 35 | Township |
| Clayton | 26 | 65 | 65 | 0% | 1 | 48 | Township |
| Olivet | 27 | 62 | 64 | -1.59% | 308 | 0 | Town |
| Oak Hollow | 28 | 52 | 51 | 0% | 2 | 32 | Township |
| Pleasant | 29 | 47 | 44 | 4.44% | 2 | 29 | Township |
| Dolton | 30 | 36 | 35 | 0% | 141 | 0 | Town |
| Kaylor | 31 | 19 | 9 | 5.56% | 22 | 1 | CDP |
Parkston is the largest city in Hutchinson County, with a population of 1,538.
Kaylor is the smallest city in Hutchinson County, with a population of 19.
There are 31 cities in Hutchinson County, South Dakota.