19 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Flandreau | 1 | 2,348 | 2,373 | -0.21% | 1,263 | 1.86 | City |
| Colman | 2 | 668 | 633 | 1.06% | 355 | 1.88 | City |
| Flandreau | 3 | 381 | 366 | 1.06% | 11 | 34.51 | Township |
| Fremont | 4 | 296 | 283 | 1.37% | 8 | 35.17 | Township |
| Lynn | 5 | 281 | 274 | 0.72% | 8 | 35.91 | Township |
| Enterprise | 6 | 269 | 259 | 1.13% | 8 | 35.13 | Township |
| Trent | 7 | 253 | 207 | 3.69% | 243 | 1.04 | Town |
| Egan | 8 | 249 | 241 | 0.81% | 233 | 1.07 | City |
| Blinsmon | 9 | 236 | 219 | 2.16% | 6 | 36.41 | Township |
| Colman | 10 | 229 | 216 | 1.33% | 7 | 33.65 | Township |
| Egan | 11 | 226 | 212 | 1.35% | 6 | 35.43 | Township |
| Clare | 12 | 159 | 149 | 1.92% | 4 | 35.80 | Township |
| Grovena | 13 | 151 | 144 | 1.34% | 4 | 36.17 | Township |
| Riverview | 14 | 132 | 125 | 1.54% | 4 | 35.83 | Township |
| Spring Creek | 15 | 118 | 109 | 1.72% | 3 | 35.35 | Township |
| Alliance | 16 | 94 | 92 | 0% | 4 | 21.80 | Township |
| Lone Rock | 17 | 91 | 89 | 0% | 4 | 21.95 | Township |
| Union | 18 | 79 | 80 | -1.25% | 4 | 22.42 | Township |
| Ward | 19 | 71 | 63 | 4.41% | 3 | 21.85 | Township |
Flandreau is the largest city in Moody County, with a population of 2,348.
Ward is the smallest city in Moody County, with a population of 71.
There are 19 cities in Moody County, South Dakota.