| Locality | Postal Code |
|---|---|
| John d'Or Prairie, Big Lakes | T0H 3X0 |
| Joussard, Big Lakes | T0G 1J0, T0G 0C8 |
| Keg River, Big Lakes | T0H 0C6, T0H 2G0 |
| Kinuso, Big Lakes | T0G 0B3, T0G 1K0 |
| La Crete, Big Lakes | T0H 0B1, T0H 2H0 |
| Manning, Big Lakes | T0H 2M0, T0H 0E5 |
| Marie Reine, Big Lakes | T0H |
| Meander River, Big Lakes | T0H 2P0 |
| Nampa, Big Lakes | T0H 0E1, T0H 2R0 |
| North Star, Big Lakes | T0H 2T0 |
| Northern Sunrise County, Big Lakes | T0H 2N2 |
| Notikewin, Big Lakes | T0H 2V0 |
| Paddle Prairie, Big Lakes | T0H 2W0, T0H 0B3 |
| Peerless Lake, Big Lakes | T0G 2W0 |
| Rainbow Lake, Big Lakes | T0H 2Y0, T0H 0C9 |
| Red Earth Creek, Big Lakes | T0G 1X0, T0G 0C1 |
| Saint-Isidore, Big Lakes | T0H 3B0 |
| Slave Lake, Big Lakes | T0G |
| Smith, Big Lakes | T0G 0C5, T0G 2B0 |
| Swan Hills, Big Lakes | T0G 0B6, T0G 2C0 |
| Trout Lake, Big Lakes | T0G 2N0 |
| Wabasca, Big Lakes | T0G 0B7, T0G 2K0 |
| Widewater, Big Lakes | T0G 2M0 |
| Worsley, Big Lakes | T0H 0A7, T0H 3W0 |
| Zama City, Big Lakes | T0H 0G5, T0H 4E0 |