| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Snowdon, Selwyn | 7572 |
| Postal/ZIP Codes in Southbridge, Selwyn | 7602, 7682, 7683, 7783 |
| Postal/ZIP Codes in Springfield, Selwyn | 7495, 7572, 7580, 7681 |
| Postal/ZIP Codes in Springston, Selwyn | 7616, 7674, 7677, 7678, 7683 |
| Postal/ZIP Codes in Tai Tapu, Selwyn | 7672, 7674 |
| Postal/ZIP Codes in Waddington, Selwyn | 7500 |
| Postal/ZIP Codes in West Melton, Selwyn | 7671, 7675, 7676 |
| Postal/ZIP Codes in Windwhistle, Selwyn | 7572, 7673 |