| Code | Display |
| 1 | Te Tai Tokerau/Tāmaki Makau Rau (Northland/Auckland) Region |
| 100 | Te Tai Tokerau/Tāmaki Makau Rau (Northland/Auckland) Region, not further defined |
| 101 | Te Aupōuri |
| 102 | Ngāti Kahu |
| 103 | Ngāti Kurï |
| 104 | Ngāpuhi |
| 105 | Ngāpuhi ki Whāingaroa-Ngāti Kahu ki Whāingaroa |
| 106 | Te Rarawa |
| 107 | Ngāi Takoto |
| 108 | Ngāti Wai |
| 109 | Ngāti Whātua |
| 110 | Te Kawerau |
| 111 | Te Uri-o Hau |
| 112 | Te Roroa |
| 2 | Hauraki (Coromandel) Region |
| 200 | Hauraki (Coromandel) Region, not further defined |
| 201 | Ngāti Hako |
| 202 | Ngāti Hei |
| 203 | Ngāti Maru (Marutuahu) |
| 204 | Ngāti Paoa |
| 205 | Patukirikiri |
| 206 | Ngāti Porou ki Harataunga ki Mataora |
| 207 | Ngāti Pükenga ki Waiau |
| 208 | Ngāti Rāhiri Tumutumu |
| 209 | Ngāti Tai |
| 210 | Ngāti Tamaterā |
| 211 | Ngāti Tara Tokanui |
| 212 | Ngāti Whanaunga |
| 3 | Waikato/Te Rohe Pōtae (Waikato/King Country) Region |
| 300 | Waikato/Te Rohe Pōtae (Waikato/King Country) Region, not further defined |
| 301 | Ngāti Haua (Waikato) |
| 302 | Ngāti Maniapoto |
| 303 | Ngāti Raukawa (Waikato) |
| 304 | Waikato |
| 4 | Te Arawa/Taupō (Rotorua/Taupō) Region |
| 400 | Te Arawa/Taupō (Rotorua/Taupō) Region, not further defined |
| 401 | Ngāti Pikiao (Te Arawa) |
| 402 | Ngāti Rangiteaorere (Te Arawa) |
| 403 | Ngāti Rangitihi (Te Arawa) |
| 404 | Ngāti Rangiwewehi (Te Arawa) |
| 405 | Tapuika (Te Arawa) |
| 406 | Tarāwhai (Te Arawa) |
| 407 | Tühourangi (Te Arawa) |
| 408 | Uenuku-Kōpako (Te Arawa) |
| 409 | Waitaha (Te Arawa) |
| 410 | Ngāti Whakaue (Te Arawa) |
| 411 | Ngāti Tüwharetoa |
| 412 | Ngāti Tahu (Te Arawa) |
| 5 | Tauranga Moana/Mātaatua (Bay of Plenty) Region |
| 500 | Tauranga Moana/Mātaatua (Bay of Plenty) Region, not further defined |
| 501 | Ngāti Pükenga |
| 502 | Ngaiterangi |
| 503 | Ngāti Ranginui |
| 504 | Ngāti Awa |
| 505 | Ngāti Manawa |
| 506 | Ngāi Tai |
| 507 | Tühoe |
| 508 | Whakatōhea |
| 509 | Whānau-A-Apanui |
| 510 | Ngāti Whare |
| 6 | Te Tairāwhiti (East Coast) Region |
| 600 | Te Tairawhiti (East Coast) Region, not further defined |
| 601 | Ngāti Porou |
| 602 | Te Aitanga-A-Māhaki |
| 603 | Rongowhakaata |
| 604 | Ngāi Tāmanuhiri |
| 7 | Te Matau a Māui/Wairarapa (Hawkes Bay/Wairarapa) Region |
| 700 | Te Matau a Maui/Wairarapa (Hawkes Bay/Wairarapa) Region, not further defined |
| 701 | Rongomaiwahine (Te Māhia) |
| 702 | Ngāti Kahungunu ki Te Wairoa |
| 703 | Ngāti Kahungunu ki Heretaunga |
| 704 | Ngāti Kahungunu ki Wairarapa |
| 705 | Ngāti Kahungunu, region unspecified |
| 706 | Rangitāne (Te Matau a Maui/Hawkes Bay/Wairarapa) |
| 707 | Ngāti Kahungunu ki Whanganui a Orotu |
| 708 | Ngāti Kahungunu ki Tamatea |
| 709 | Ngāti Kahungunu ki Tamakinui a Rua |
| 8 | Taranaki (Taranaki) Region |
| 800 | Taranaki (Taranaki) Region, not further defined |
| 801 | Te Atiawa (Taranaki) |
| 802 | Ngāti Maru (Taranaki) |
| 803 | Ngāti Mutunga (Taranaki) |
| 804 | Ngā Rauru |
| 805 | Ngā Ruahine |
| 806 | Ngāti Ruanui |
| 807 | Ngāti Tama (Taranaki) |
| 808 | Taranaki |
| 809 | Tangāhoe |
| 810 | Pakakohi |
| 9 | Whanganui/Rangitïkei (Wanganui/Rangitïkei) Region |
| 900 | Whanganui/Rangitïkei (Wanganui/Rangitïkei) Region, not further defined |
| 901 | Ngāti Apa (Rangitïkei) |
| 902 | Te Ati Hau Nui-A-Pāpārangi |
| 903 | Ngāti Haua (Taumarunui) |
| 904 | Ngāti Hauiti |
| 10 | Manawatü/Horowhenua/Te Whanganui a Tara (Manawatü/Horowhenua/Wellington) Region |
| 1000 | Manawatü/Horowhenua/TeWhanganui aTara(Manawatü/Horowhenua/Wellington)Region nfd |
| 1001 | Te Atiawa (Te Whanganui a Tara/Wellington) |
| 1002 | Muaüpoko |
| 1003 | Rangitāne (Manawatü) |
| 1004 | Ngāti Raukawa (Horowhenua/Manawatü) |
| 1005 | Ngāti Toarangatira (Te Whanganui a Tara/Wellington) |
| 1006 | Te Atiawa ki Whakarongotai |
| 11 | Te Waipounamu/Wharekauri (South Island/Chatham Islands) Region |
| 1100 | Te Waipounamu/Wharekauri (South Island/Chatham Islands) Region, nfd |
| 1101 | Te Atiawa (Te Waipounamu/South Island) |
| 1102 | Ngāti Koata |
| 1103 | Ngāti Kuia |
| 1104 | Kāti Mamoe |
| 1105 | Moriori |
| 1106 | Ngāti Mutunga (Wharekauri/Chatham Islands) |
| 1107 | Rangitāne (Te Waipounamu/South Island) |
| 1108 | Ngāti Rārua |
| 1109 | Ngāi Tahu / Kāi Tahu |
| 1110 | Ngāti Tama (Te Waipounamu/South Island) |
| 1111 | Ngāti Toarangatira (Te Waipounamu/South Island) |
| 1112 | Waitaha (Te Waipounamu/South Island) |
| 1113 | Ngāti Apa ki te Waipounamu |
| 20 | Iwi Not Named, but Waka or Iwi Confederation Known |
| 2001 | Tainui |
| 2002 | Te Arawa |
| 2003 | Takitimu |
| 2004 | Aotea |
| 2005 | Mātaatua |
| 2006 | Mahuru |
| 2007 | Māmari |
| 2008 | Ngātokimatawhaorua |
| 2009 | Nukutere |
| 2010 | Tokomaru |
| 2011 | Kurahaupo |
| 2012 | Muriwhenua |
| 2013 | Hauraki / Pare Hauraki |
| 2014 | Turanganui a Kiwa |
| 2015 | Te Tauihu o Te Waka a Maui |
| 2016 | Tauranga Moana |
| 2017 | Horouta |
| 21 | Iwi Named but Region Unspecified |
| 2101 | Te Atiawa, region unspecified |
| 2102 | Ngāti Haua, region unspecified |
| 2103 | Ngāti Maru, region unspecified |
| 2104 | Ngāti Mutunga, region unspecified |
| 2105 | Rangitāne, region unspecified |
| 2106 | Ngāti Raukawa, region unspecified |
| 2107 | Ngāti Tama, region unspecified |
| 2108 | Ngāti Toa, region unspecified |
| 2109 | Waitaha, region unspecified |
| 2110 | Ngāti Apa, region unspecified |
| 22 | Hapü Affiliated to More Than One Iwi |
| 44 | Don't Know |
| 55 | Refused to Answer |
| 77 | Response Unidentifiable |
| 88 | Response Outside Scope |
| 99 | Not Stated |