Functional Urban Area 2026 update

The Functional Urban Area (FUA) 2026 update is the first major update to the FUA classification. It is based on analysis of 2023 Census of Population and Dwellings commuting data. FUA 2026 aligns to urban rural (UR) and statistical area 1 (SA1) 2026 boundaries. There have been minimal changes to these statistical areas since 2023.

Key changes since FUA 2018 include the reclassifying of Wānaka and the addition of two small regional centres. The Wānaka urban area, whose population has grown to be more than 10,000 based on population estimates, has been reclassified to a medium urban area and a medium regional centre FUA type. Dargaville and Waiheke West have been added as small regional centres.

Description

Refer to the current geographies boundaries table for a list of all current geographies and recent updates.

This dataset is the definitive version of the Functional Urban Area (FUA) boundaries as at 1 January 2026, as defined by Stats NZ.

FUAs represent a populated urban core/s and its commuting zone. Workplace address and usual residence address data from the 2023 Census of Population and Dwellings were used to identify satellite urban areas (1,000–4,999 residents), rural settlements and other rural SA1s from which at least 40 percent of workers commuted to urban areas with more than 5,000 residents.

The FUA classification uses the urban rural (UR) geography to demarcate urban areas, and statistical area 1 areas (SA1s) to demarcate surrounding hinterland (the commuting zone) within FUAs, and rural and water areas outside FUAs.

In 2026, there are 55 FUAs, excluding ‘Land area outside functional urban area’ (9001) and ‘Water area outside functional urban area’ (9002).

FUA numbering and naming

The FUA classification identifies FUAs by the name of the most highly populated urban area it contains, for example, the Christchurch FUA includes the Christchurch urban core and Rangiora, Kaiapoi, and Rolleston secondary urban cores. There is one exception to the naming rule. The Paraparaumu-Waikanae-Paekākāriki conurbation and surrounding hinterland is named Kapiti Coast. 

The FUA classification has a two-level hierarchical structure, joined together to create each FUA code. Level 1 is classified by FUA type (TFUA) a one-digit code and level 2, which has three-digit codes numbered approximately north to south. Some examples are: 1001 Auckland, 2001 Whangārei, 3001 Cambridge, and 4001 Kaitāia.

FUA type (TFUA)

FUAs are further categorised by population size. The urban core’s population rather than the entire FUA’s population is used to maintain consistency between the descriptions of UR urban area and FUA type. The categories are, by code: 

1 Metropolitan area – more than 100,000 residents living in the urban core, 

2 Large regional centre – urban core population 30,000–99,999,

3 Medium regional centre – urban core population 10,000–29,999, 

4 Small regional centre – urban core population 5,000–9,999, and, 

9 Area outside functional urban area. 

The Greymouth urban area population is less than 10,000 but is classified as a medium regional centre, consistent with its treatment as a medium urban area in the UA classification. 

To differentiate from the UR classification, when referring to FUAs by name, their FUA type should also be mentioned, for example, Christchurch metropolitan area, Whangārei regional centre

FUA indicator (IFUA)

The IFUA classifies UR 2026 urban areas and rural SA1s according to their character within their FUA. 

The indicators, with their codes in brackets, are: 

• urban area within functional urban area – urban core (101), secondary urban core (102), satellite urban area (103), 

• rural area within functional urban area – hinterland (201), 

• area outside functional urban area – land area outside functional urban area (901), water area outside functional urban area (902).

Lineage

These boundaries are derived from the meshblock pattern. Using spatial processing tools, the meshblocks are dissolved to form higher-level geographies.

The original vertices delineating the meshblock boundary pattern were digitised in 1991 from 1:5,000 scale urban maps and 1:50,000 scale rural maps. The magnitude of error of the original digital points would have been in the range of +/- 10 metres in urban areas and +/- 25 metres in rural areas. Where meshblock boundaries coincide with cadastral boundaries the magnitude of error will be within the range of 1–5 metres in urban areas and 1-100 metres in rural areas, this being the estimated magnitude of error in Landonline.

High definition version

This high definition (HD) version is the most detailed geometry, suitable for use in GIS for geometric analysis operations and for the computation of areas, centroids and other metrics.

Liability

While care has been taken to compile these boundary coordinates, Stats NZ gives no warranty that the data supplied is free from error. Stats NZ shall not be liable for any loss suffered through the use, directly or indirectly, of any information, product or service.

Macrons

Names are provided with and without tohutō/macrons. The column name for those without macrons is suffixed ‘ascii’.

Digital data

Digital boundary data became freely available on 1 July 2007.

Further information

To download geographic classifications in table formats such as CSV please use Ariā.

For more information please refer to the Statistical standard for geographic areas 2023.

Contact: geography@stats.govt.nz