Repartition of Postcodes
Here below is a table that - for each first postcode digit - indicates in which government regions the addresses are:
| Code prefix | Regions |
| 0 | Northland, parts of Auckland |
| 1 | Auckland |
| 2 | Auckland, Waikato |
| 3 | Bay of Plenty, Waikato |
| 4 | Gisborne, Hawke's Bay, Taranaki, Manawatu-Wanganui |
| 5 | Wellington |
| 6 | Wellington |
| 7 | Tasman, Nelson, Marlborough, West Coast, Canterbury |
| 8 | Canterbury |
| 9 | Otago, Southland |
Read more about this topic: Postcodes In New Zealand