19 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Flandreau | 1 | 2,371 | 2,374 | -0.04% | 1,275 | 2 | City |
| Colman | 2 | 684 | 633 | 1.48% | 363 | 2 | City |
| Flandreau | 3 | 385 | 368 | 1.32% | 11 | 35 | Township |
| Fremont | 4 | 298 | 285 | 1.36% | 8 | 35 | Township |
| Lynn | 5 | 288 | 275 | 1.77% | 8 | 36 | Township |
| Enterprise | 6 | 270 | 259 | 1.5% | 8 | 35 | Township |
| Egan | 7 | 249 | 238 | 0.81% | 233 | 1 | City |
| Trent | 8 | 244 | 206 | 2.95% | 234 | 1 | Town |
| Blinsmon | 9 | 229 | 219 | 0.88% | 6 | 36 | Township |
| Colman | 10 | 227 | 218 | 0.44% | 7 | 34 | Township |
| Egan | 11 | 218 | 208 | 0.46% | 6 | 35 | Township |
| Grovena | 12 | 160 | 151 | 1.91% | 4 | 36 | Township |
| Clare | 13 | 153 | 148 | 0.66% | 4 | 36 | Township |
| Riverview | 14 | 134 | 125 | 2.29% | 4 | 36 | Township |
| Spring Creek | 15 | 114 | 109 | 0.88% | 3 | 35 | Township |
| Alliance | 16 | 97 | 91 | 2.11% | 4 | 22 | Township |
| Lone Rock | 17 | 94 | 88 | 2.17% | 4 | 22 | Township |
| Union | 18 | 87 | 80 | 3.57% | 4 | 22 | Township |
| Ward | 19 | 65 | 63 | 0% | 3 | 22 | Township |
Flandreau is the largest city in Moody County, with a population of 2,371.
Ward is the smallest city in Moody County, with a population of 65.
There are 19 cities in Moody County, South Dakota.