| Business | Phone |
| Yankton Sioux Enrollment Clerk 402 S Main Ave, Wagner 57380 | (605) 384-3849 |
| Yankton Sioux Tribal Housing 402 S Main Ave, Wagner 57380 | (605) 384-3171 |
| Yankton Sioux Tribal Housing 900 S Main Ave, Wagner 57380 | (605) 384-5050 |
| Us Indian Affairs Bureau 29775 Main Ave, Wagner 57380 | (605) 384-5691 |