This dataset is the definitive set of statistical area 1 (SA1) boundaries at 1 January 2018 as defined by Stats NZ. SA1 is a new output geography that allows for the release of more detailed information about population characteristics than is available at the meshblock level. SA1s are defined at meshblock level.

Digital boundary data became freely available on 1 July 2007. This generalised version has been simplified for rapid drawing and is designed for thematic or web mapping purposes.

For further information see ANZLIC Metadata 2018 Statistical Area 1 attachment below or link to the StatsNZ Classification System Aria.

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