| Business | Phone |
| Big Stone Cnty Highway Garage 437 Minnesota St N, Ortonville 56278 | (320) 839-2595 |
| Big Stone County Commissioners 11 2nd St Se # 101, Ortonville 56278 | (320) 839-6253 |
| Big Stone County Custodian 20 2nd St Se, Ortonville 56278 | (320) 839-3202 |
| Big Stone County Engineer 437 Minnesota St N, Ortonville 56278 | (320) 839-2594 |
| Big Stone County Housing 11 2nd St Se # 102, Ortonville 56278 | (320) 839-2123 |
| Big Stone County Recorder 20 2nd St Se, Ortonville 56278 | (320) 839-2308 |
| Big Stone County Vet Svc 20 2nd St Se, Ortonville 56278 | (320) 839-3507 |
| Big Stone Extension Office 11 2nd St Se # 101, Ortonville 56278 | (320) 839-2518 |
| Upper Minnesota River Watrshed 342 2nd St Nw, Ortonville 56278 | (320) 839-3411 |