List of regions in New Zealand

Region
Category	Unitary state
Location	New Zealand
Number	16
Populations	32,600 (West Coast) – 1,527,100 (Auckland)
Areas	450 km2 (172 sq mi) (Nelson) – 45,350 km2 (17,508 sq mi) (Canterbury)
Government	Local government
Subdivisions	Territorial authority

New Zealand is divided into sixteen regions for devolved local government. Eleven are administered by regional councils (the top tier of local government), and five are administered by unitary authorities, which are territorial authorities (the second tier of local government) that also perform the functions of regional councils. The Chatham Islands Council is similar to a unitary authority, authorised under its own legislation.

The regional councils are listed in Part 1 of Schedule 2 of the Local Government Act 2002, along with reference to the Gazette notices that established them in 1989. The Act requires regional councils to promote sustainable development – the social, economic, environmental and cultural well-being of their communities.

The current regions and most of their councils came into being through a local government reform in 1989 that took place under the Local Government Act 1974. The regional councils replaced the more than 700 ad hoc bodies that had been formed in the preceding century – roads boards, catchment boards, drainage boards, pest control boards, harbour boards, domain and reserve boards. In addition they took over some roles that had previously been performed by county councils. Auckland Regional Council, formed in 1989, was replaced by Auckland Council, a unitary authority, in 2010.

The boundaries of the regions are based largely on drainage basins. This anticipated the responsibilities of the Resource Management Act 1991. Most regional boundaries conform with territorial authority boundaries but there are a number of exceptions. An example is Taupo District, split between four regions, although most of its area is in the Waikato region.

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