Stats NZ has a new website.

For new releases go to

www.stats.govt.nz

As we transition to our new site, you'll still find some Stats NZ information here on this archive site.

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Background

All data collected, statistical or otherwise, must be referenced to both time and place. Place can be any geographic reference, for example, the whole of New Zealand, a region, a town, or a lake. Identifying and classifying places into statistical geographies allows users of statistics to see not just how data varies but also where it varies.

The SSGA18 is Stats NZ’s official standard for statistical geographic areas in New Zealand. It allows statistical units, such as households, people, or businesses, to be assigned to the location where they live, work, and operate.

The SSGA18 was developed to enable the production of integrated statistics by geographic area. It provides a range of geographic units that are convenient for data collection, compilation, and output, and are useful for spatial analysis of social, demographic, and economic statistics.

The statistical geographies standard had its last major update after the 1989 local government reorganisation and was published as the NZSAC92. Minor updates have occurred since 1992 through annual meshblock maintenance, after local government boundary changes, and with 5-yearly area unit updates. But over time, the statistical geographies have become out of date, and no longer reflect current land use and population patterns.

The SSGA18 has been updated with new concepts and definitions, and using geographic information system (GIS) technologies, to better meet the needs of users, and to better align with international best practice.

Stats NZ encourages the use of the SSGA18 by other organisations to improve the comparability and usefulness of statistics generally.

The new statistical geographies – statistical area 1 (SA1), statistical area 2 (SA2), and urban rural areas – are included in the 2018 annual Geographic boundary files release.

The 2018 Census of Population and Dwellings statistics and 2018 Business Demography statistics will be the first Stats NZ publications to use the new geographies. Population counts from the 2018 Census will be used to create derived statistical geographies, such as the urban influence classification (which will replace the Urban/Rural Profile (experimental) classification) and metropolitan area geography. When they are completed, the new derived geographies will be added to this standard.

Stats NZ would like to thank central and local government organisations, community groups, and individuals for their valuable contribution of local geographic knowledge, which assisted in the design of these new geographies.

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