| Business | Phone |
| Western Real Estate Inc 731 Mount Rushmore Rd, Custer 57730 | (605) 673-4482 |
| Statewide Real Estate Svc 503 Mount Rushmore Rd # 6, Custer 57730 | (605) 673-2433 |
| Coldwell Banker 549 Mount Rushmore Rd, Custer 57730 | (605) 673-5400 |
| Real Estate Ctr 14 W Mount Rushmore Rd, Custer 57730 | (605) 673-2629 |