| Locality | Post Code |
|---|---|
| Braham, Isanti | 55006 |
| Cambridge, Isanti | 55008 |
| Dalbo, Isanti | 55017 |
| Day, Isanti | 55006 |
| Edgewood, Isanti | 55008 |
| Grandy, Isanti | 55029 |
| Grass Lake, Isanti | 55006 |
| Isanti, Isanti | 55040 |
| Spectacle Lake, Isanti | 55008 |
| Stanchfield, Isanti | 55080 |
| Stanford, Isanti | 55080 |