| Business | Phone |
| Pipestone Economic Devel Cncl Po Box 102, Wunnummin Lake P0V 2Z0 | (807) 442-2518 |
| We Chee Way Win General Delivery, Wunnummin Lake P0V 2Z0 | (807) 442-2600 |
| Wunnummin Nnadap Po Box 105, Wunnummin Lake P0V 2Z0 | (807) 442-2564 |
| Wunnummin Lake Radio Station General Delivery, Wunnummin Lake P0V 2Z0 | (807) 442-2576 |
| Wunnummin Lake Band Office General Delivery, Wunnummin Lake P0V 2Z0 | (807) 442-2559 |
| Wunnummin Nursing Station General Delivery, Wunnummin Lake P0V 2Z0 | (807) 442-2573 |
| Wunnummin Indian Day School Po Box 108, Wunnummin Lake P0V 2Z0 | (807) 442-2575 |