| Code | Name | Region |
|---|---|---|
| NZWYH | Wyndham | STL |
| NZWAV | Waverley | TKI |
| NZWLG | Wellington | WGN |
| NZWLF | Wellsford | NTL |
| NZWSP | Western Springs | AUK |
| NZWSZ | Westport | WTC |
| NZWYM | Weymouth | AUK |
| NZWHU | Whakamaru | WGN |
| NZWHK | Whakatane | BOP |
| NZWHA | Whakatu | HKB |
| NZWGA | Whangaparaoa | AUK |
| NZWHN | Whangaparapara | AUK |
| NZWRE | Whangarei | NTL |
| NZWHR | Whangaroa | NTL |
| NZWHE | Whekenui | MBH |
| NZWNP | Whenuapai | AUK |
| NZWHT | White Island | BOP |
| NZWTZ | Whitianga | WKO |
| NZWNT | Winton | STL |
| NZWII | Wiri | AUK |
| NZWLS | Woolston | CAN |
| NZWUT | Wainuiomata | WGN |
| NZWAO | Waiouru | MWT |
| NZWPR | Waipara | CAN |
| NZWPW | Waipawa | HKB |
| NZWPU | Waipu | NTL |
| NZWJL | Waipukurau | HKB |
| NZWAR | Wairau Valley | MBH |
| NZWIR | Wairoa | HKB |
| NZMTK | Waitakere | AUK |
| NZWTI | Waitaki | CAN |
| NZWTG | Waitangi | NTL |
| NZWTA | Waitara | TKI |
| NZWAA | Waitoa | WKO |
| NZWAI | Waitotara | MWT |
| NZWUK | Waiuku | AUK |
| NZWLV | Wallaceville | WGN |
| NZWKA | Wanaka | OTA |
| NZWAG | Wanganui | MWT |
| NZWWA | Warkworth | AUK |
| NZWDY | Washdyke | CAN |
| NZTKA | Temuka | CAN |
| NZTMZ | Thames | WKO |
| NZTIU | Timaru | CAN |
| NZTRI | Titirangi | AUK |
| NZTWI | Tiwai Point-bluff Port | STL |
| NZTKZ | Tokoroa | WKO |
| NZTOA | Tomoana | HKB |
| NZTBY | Torbay | AUK |
| NZTTH | Trentham | WGN |