| Business | Phone |
| Tribal Headquarters 45657 Veterans Memorial Dr, Sisseton 57262 | (605) 698-3911 |
| Tribal Headquarters Rr 2, Sisseton 57262 | (605) 698-3911 |
| Tribal Health Adm 7 Chestnut St, Sisseton 57262 | (605) 698-4219 |
| Tribal Roads Dept 12323 Bia Highway 700, Sisseton 57262 | (605) 698-4153 |
| Sioux Jom Office 410 2nd Ave E, Sisseton 57262 | (605) 698-7604 |
| Sioux Jom Office 511 Main Ave, Sisseton 57262 | (605) 698-7604 |
| Sioux Mch Family Planning 7 E Chestnut St, Sisseton 57262 | (605) 698-3211 |
| Sioux Probation Office Lafrombose Ave, Sisseton 57262 | (605) 698-7629 |
| Sioux Tribal Court Veterans Ave, Sisseton 57262 | (605) 698-7629 |
| Sisseton Child Protection 45658 Veterans Memorial Dr, Sisseton 57262 | (605) 698-3992 |
| Sisseton Child Protection 509 Veterans Memorial Dr, Sisseton 57262 | (605) 698-3992 |
| Sisseton Community Health Ed 11950 Bia Highway 700, Sisseton 57262 | (605) 698-3922 |
| Sisseton Community Health Ed 205 E Oak St, Sisseton 57262 | (605) 698-3922 |
| Sisseton Environmental Prtctn 101 Veterans Ave, Sisseton 57262 | (605) 698-4998 |
| Sisseton Health Dept 388 Dakota Ave, Sisseton 57262 | (605) 698-3917 |
| Sisseton Physicians Recruiting 205 E Oak St, Sisseton 57262 | (605) 698-4204 |
| Sisseton Physicians Recruiting 410 2nd Ave E, Sisseton 57262 | (605) 698-4204 |
| Sisseton Sioux Gaming Comm Rr 2 Box 837, Sisseton 57262 | (605) 698-3308 |
| Sisseton Sioux Tax Dept 45672 Veterans Memorial Dr, Sisseton 57262 | (605) 698-3541 |
| Sisseton Sioux Tribal Employ Post Office Bldg, Sisseton 57262 | (605) 698-3549 |
| Sisseton Tribal Elderly Prgrm Rr 2 Box 509, Sisseton 57262 | (605) 698-9023 |
| Sisseton Wahpeton Management 205 E Oak St, Sisseton 57262 | (605) 698-3501 |
| Old Agency Commodity Program 45664 Veterans Memorial Dr, Sisseton 57262 | (605) 698-3762 |
| Old Agency District 12544 Bia Highway 701, Sisseton 57262 | (605) 698-7747 |
| Oyate Oep Water Lab 45697 Veterans Memorial Dr, Sisseton 57262 | (605) 698-6575 |