Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Spearfish (city), SD | 12,193 |
| 2 | Sturgis (city), SD | 7,020 |
| 3 | Belle Fourche (city), SD | 5,617 |
| 4 | Lead (city), SD | 2,982 |
| 5 | Summerset (city), SD | 2,972 |
| 6 | North Spearfish (CDP), SD | 2,366 |
| 7 | Deadwood (city), SD | 1,156 |
| 8 | Piedmont (city), SD | 971 |
| 9 | Whitewood (city), SD | 879 |
| 10 | Boulder Canyon (CDP), SD | 561 |
| 11 | Blucksberg Mountain (CDP), SD | 467 |
| 12 | Mountain Plains (CDP), SD | 327 |
| 13 | St. Onge (CDP), SD | 170 |
| 14 | Crook City (CDP), SD | 132 |
| 15 | Central City (city), SD | 93 |
Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Spearfish (city), SD | 12,193 |
| 2 | Sturgis (city), SD | 7,020 |
| 3 | Belle Fourche (city), SD | 5,617 |
| 4 | Lead (city), SD | 2,982 |
| 5 | Summerset (city), SD | 2,972 |
| 6 | North Spearfish (CDP), SD | 2,366 |
| 7 | Deadwood (city), SD | 1,156 |
| 8 | Piedmont (city), SD | 971 |
| 9 | Whitewood (city), SD | 879 |
| 10 | Boulder Canyon (CDP), SD | 561 |
| 11 | Blucksberg Mountain (CDP), SD | 467 |
| 12 | Mountain Plains (CDP), SD | 327 |
| 13 | St. Onge (CDP), SD | 170 |
| 14 | Crook City (CDP), SD | 132 |
| 15 | Central City (city), SD | 93 |