Bay of Plenty District Health Board
Covering 9,666 square kilometres, Bay of Plenty District Health Board serves a population of 214,910 and stretches from Waihi Beach in the North West to Whangaparaoa on the East Cape and inland to the Urewera, Kaimai and Mamaku ranges. These boundaries take in the major population centres of Tauranga, Katikati, Te Puke, Whakatāne, Kawerau and Ōpōtiki. Eighteen iwi are located within the Bay of Plenty DHB area.
Lakes District Health Board
Lakes District Health Board serves a population of just over 100,000 and covers 9,570 square kilometres. It stretches from Mourea in the north to Turangi in the south, and across from Kaingaroa village in the east to Mangakino in the west. It covers the major population centres of Rotorua and Taupō. The DHB boundaries take in the two main iwi groups of Te Arawa and Ngati Tuwharetoa.
Hauora Tairāwhiti covers the same area as the Gisborne District local and territorial authorities. Covering an area of 8,351 square kilometres it makes up 3% of New Zealand’s land area. The total population of Hauora Tairāwhiti was 44,499 in the 2006 census.
Taranaki District Health Board
Taranaki District Health Board serves a population of 110,258 and covers a geographic area of 723,610 hectares. It stretches from Mokau River in the north to Waitōtara River in the south and takes in the major population centres of New Plymouth and Hawera.
Waikato District Health Board
Waikato DHB serves a population of more than 390,000 and covers more than 21,000 square kilometres. It stretches from northern Coromandel to close to Mt Ruapehu in the south, and from Raglan on the west coast to Waihi on the east. The principal iwi in the Waikato DHB district are Hauraki, Ngāti Maniapoto, Ngāti Raukawa, and Waikato. Ngāti Tūwharetoa and Whanganui iwi groups also reside within the district, and a significant number of Māori living in the Waikato affiliate to iwi outside the district.