Identifiers: city · town · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Huron (city), SD | 14,263 |
| 2 | Woonsocket (city), SD | 631 |
| 3 | Wolsey (town), SD | 459 |
| 4 | Iroquois (city), SD | 292 |
| 5 | Alpena (town), SD | 212 |
| 6 | Cavour (town), SD | 128 |
| 7 | Riverside Colony (CDP), SD | 72 |
| 8 | Morningside (CDP), SD | 70 |
| 9 | Virgil (town), SD | 26 |
| 10 | Huron Colony (CDP), SD | 2 |