The following metadata is supplied with the model for sharing purposes: Credits: Auckland Light Rail - Dataset produced by RECON NZAuckland CBD To Airport Model Specifications• Resolution: 6 cm• Accuracy: 25 cm (RMSE)• Areas: Zone 1A: ~ 13.7 sq. km Zone 1B: ~ 13.2 sq. km Zone 2: ~ 15.9 sq. km Zone 3A: ~ 12.5 sq. km Zone 3B : ~ 16.4 sq. km• Captured: August 2023• Datum: NZGD2000 NZTM (Horizontal) & NZVD2016 (Vertical)The 3D model is available for visualization purposes only. The source data is not available for download and cannot be shared.

This provides a polygon coastline and islands layer which is based on the Topo50 products. It is a combination of the following layers:

• NZ Coastlines (Topo 1:50k)
• NZ Island Polygons (Topo 1:50k)
• NZ Auckland Is Island Polygons (Topo, 1:50k)
• NZ Campbell Is / Motu Ihupuku Island Polygons (Topo, 1:50k)
• NZ Antipodes Is Island Polygons (Topo, 1:25k)
• NZ Kermadec Is Island Polygons (Topo, 1:25k)
• NZ Bounty Is Island Polygons (Topo, 1:25k)
• NZ Snares Is / Tini Heke Island Polygons (Topo, 1:25k)
• NZ Chatham Is island polygons (Topo, 1:50k)

This topographic coastline is the line forming the boundary between the land and sea, defined by mean high water.

Islands from the NZ Island Polygons layer that lie within the NZ Coastline and Chatham Islands areas (i.e. islands in lakes, rivers and estuaries) have been removed.

The GIS workflow to create the layer is:

1. NZ Coastlines were converted from a polyline to a polygon using a polyline to polygon tool.
2. The resulting coastal polygon was then used as an input into an erase tool and run against the NZ Island Polygon layer to remove all islands lying within the NZ Mainland and Stewart Island.
3. This was then merged with the NZ Chatham Is island polygons (Topo, 1:50k) that have had the islands within the main island polygon removed, NZ Auckland Is Island Polygons (Topo, 1:50k), NZ Campbell Is / Motu Ihupuku Island, NZ Antipodes Is Island Polygons (Topo, 1:25k), NZ Kermadec Is Island Polygons (Topo, 1:25k), NZ Bounty Is Island Polygons (Topo, 1:25k) and NZ Snares Is / Tini Heke Island Polygons (Topo, 1:25k) layers using a merge tool.

For more detailed description of each layer refer to the layer urls above.

APIs and web services This dataset is available via ArcGIS Online and ArcGIS REST services, as well as our standard APIs. LDS APIs and OGC web services ArcGIS Online map services ArcGIS REST API

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

Territorial authorities

Territorial Authority Local Board (TALB) is a derived classification. TALB is derived from the definitive version of the annually released local boards for Auckland and territorial authorities for the rest of New Zealand as at 1 January 2025, as defined by the territorial authorities and/or Local Government Commission and maintained by Stats NZ, clipped to the coastline. This clipped version has been created for cartographic purposes and so does not fully represent the official full extent boundaries. This version contains 21 local boards in the Auckland Council and 66 territorial authority boundaries for the rest New Zealand.

Territorial authorities are the second tier of local government in New Zealand, below regional councils. They are defined under schedule 2, part 1 of the Local Government Act 2002 as city councils or district councils. Territorial authorities were established in 1989 when 205 territorial local authorities were replaced by 75 territorial authorities. Territorial boundaries must coincide with meshblock boundaries under schedule 3, clause 17 of the Local Government Act 2002.

Local boards

Local boards share governance with a council’s governing body and each has complementary responsibilities, guaranteed by legislation. Local boards can propose bylaws and they gather community views on local and regional matters. Legislation enacted in 2012 allows for the establishment of local boards in areas of new unitary authorities that are predominantly urban and have a population of more than 400,000. The boundaries of local boards cannot be abolished or changed except through a reorganisation process. If new local boards are created they will be incorporated into this classification.

Local boards are defined at meshblock level. Stats NZ must be consulted if there is a proposed boundary change that does not align with the meshblock pattern. Local boards do not coincide with the statistical area 1 (SA1), statistical area 2 (SA2) geographies, or statistical area 3 (SA3) geographies.

Auckland Council local boards

The Auckland Council was established in November 2010 under the Local Government (Tamaki Makaurau Reorganisation) Act 2009. Seven territorial authorities within the Auckland Region were abolished and replaced by the unitary authority Auckland Council. Local boards fall within the community board classification. Changes were reflected in the 2011 and subsequent community board classifications.

For statistical outputs that use territorial authorities to aggregate and report data Auckland Council is treated as a single geographic entity, whereas previously data was provided for the seven territorial authorities. Presenting data for this single territorial authority hides meaningful patterns and trends for a significant portion of the population. A solution was to create a new classification of territorial authorities that includes the local boards for Auckland.

Numbering

TALB is a flat classification. Each category has a unique five-digit code. The first three digits represent the territorial authority code, ranging from 001 to 076 (with 999 being Area Outside Territorial Authority). The last two digits indicate if the territorial authority is further defined at local board level: 00 indicates the territorial authority is “not further defined”. Auckland retains sequential codes from the community board classification.

The names for the classification are retained from the territorial authority and community board classifications.

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Clipped Version

This clipped version has been created for cartographic purposes and so does not fully represent the official full extent boundaries.

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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. The HD version is aligned to the LINZ cadastre.

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Macrons

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

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Digital data

Digital boundary data became freely available on 1 July 2007.

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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

This dataset is the definitive set of annually released boundries of local boards for Auckland and territorial authorities for the rest of New Zealand for 2022, as defined by the territorial authorities and/or Local Government Commission and maintained by Stats NZ (the custodian), clipped to the coastline.

This clipped version has been created for map creation/cartographic purposes and so does not fully represent the official full extent boundaries. This version contains 21 local boards in the Auckland Council and 66 territorial authority boundaries for the rest New Zealand.

For statistical outputs that use territorial authorities to aggregate and report data Auckland Council is treated as a single geographic entity. This can hide meaningful patterns and trends for a significant portion of the population. A solution was to create a new classification of territorial authorities that includes the local boards for Auckland. The Auckland Council was established in 2010 under the Local Government (Tamaki Makaurau Reorganisation) Act 2009. Seven territorial authorities within the Auckland Region were abolished and replaced by the unitary authority Auckland Council. Local boards fall within the community board classification.

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

This generalised version has been simplified for rapid drawing and is designed for thematic or web mapping purposes.

Digital boundary data became freely available on 1 July 2007.

Complete ArcGIS dataset dump for demographic, health and administrative region boundaries describing ethnicity, demographics and cancer burden across a basket of diseases for NZ, ca 2008

This dataset is the definitive version of the annually released regional council boundaries for 2020 as defined by the regional councils and/or Local Government Commission, and maintained by Stats NZ (the custodian). This version contains 17 categories.

The regional council is the top tier of local government in New Zealand. There are 16 regional councils in New Zealand (defined by Part 1 of Schedule 2 of the Local Government Act 2002). Eleven are governed by an elected regional council, while five are governed by territorial authorities (the second tier of local government), who also perform the functions of a regional council and are known as unitary authorities.

Auckland Council unitary authority was formed in 2010, under the Local Government (Tamaki Makarau Reorganisation) Act 2009, replacing the Auckland Regional Council and seven territorial authorities.The seaward boundary of any coastal regional council is the twelve-mile New Zealand territorial limit. Regional councils are defined at meshblock and statistical area 2

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

This generalised version has been simplified for rapid drawing and is designed for thematic or web mapping purposes.

Digital boundary data became freely available on 1 July 2007.

The flood plains indicate the area of land inundated by runoff in a storm event that has a 1 percent or greater probability of occurring in any given year, assuming maximum probable development (MPD) and future climate change. The flood plains are mapped from hydraulic modelling results. Information specific to each flood plain is accessible using the Identify tool, including the flood report. This dataset is continually updated at catchment scale to reflect the best information available.This dataset is updated by the Heathy Waters team on a regular basis.Disclaimer: In using the Catchments and Hydrology data set, you acknowledge that you have read, understood and agreed to the disclaimers below.The flood plains and flood sensitive area data layers are generated from catchment level modelling based on the datasets, requirements and technology available at the time of model build. They are compiled regional layers with varied data uncertainty and currency, which may directly impact data accuracy for the area of interest. The information provided therefore does not preclude the need for appropriate site-specific assessment and cannot be construed as an endorsement or approval of any development by Auckland Council.The Catchments and Hydrology data set is updated regularly when new information becomes available. As such, downloading and copying activities may result in data invalidity.Whilst due care has been taken in producing the Catchments and Hydrology data sets, Auckland Council gives no warranty as to the accuracy and completeness of any information given and accepts no liability for any error, omission or use of the information.

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

This dataset is the definitive set of territorial authority boundaries as at 1 January 2025 as defined by the Local Government Commission and/or the territorial authorities themselves but maintained by Stats NZ, clipped to the coastline. This clipped version has been created for cartographic purposes and so does not fully represent the official full extent boundaries. This version contains 67 territorial authorities, excluding ‘area outside territorial authority’.

Territorial authorities are the second tier of local government in New Zealand, below regional councils. They are defined under schedule 2, part 1 of the Local Government Act 2002 as city councils or district councils. Territorial authorities were established in 1989 when 205 territorial local authorities were replaced by 75 territorial authorities. Territorial boundaries must coincide with meshblock boundaries under schedule 3, clause 17 of the Local Government Act 2002.

There are 67 territorial authorities: 12 city councils, 53 district councils, Auckland Council, and Chatham Islands Council. Five territorial authorities (Auckland Council, Nelson City Council, and the Gisborne, Tasman, and Marlborough district councils) also perform the functions of a regional council and are therefore unitary authorities. The Chatham Islands Council performs some regional council functions.

Some territorial authority boundaries are coterminous with regional council boundaries but there are several exceptions. An example is Taupo District, which is split between four regions, although most of its area falls within the Waikato Region. When defining the boundaries of territorial authorities, the Local Government Commission bases considerable weight on the ‘community of interest’.

Territorial authorities are defined at meshblock level. Statistical area 1, statistical area 2 and statistical area 3 geographies nest within territorial authority boundaries.

Maintenance

Local government boundaries may be changed through the Local Government Act 2002, an Act of Parliament, or a natural process such as the middle line of a river changing its natural course.

The Territorial Authority classification is released annually on 1 January to coincide with the update of meshblocks, but there are not always changes from the previous classification.

1989:

New Zealand’s local government structural arrangements were significantly reformed by the Local Government Commission in 1989. Prior to reformation there were 205 territorial local authorities: 28 cities, 78 boroughs, 67 counties, 31 districts, and 1 town district, as well as a multitude of ad-hoc authorities such as pest control boards, drainage boards, catchment boards, and domain and reserve boards.

These were replaced by 74 territorial local authorities, 15 of which were cities and 58 districts. The exception was Chatham Islands County which retained its county status.

1990:

Invercargill was proclaimed a city.

1992:

Nelson-Marlborough Regional Council was abolished by a Local Government Amendment Act. Kaikoura District was transferred to the Canterbury Region. Nelson City, and Tasman and Marlborough districts became unitary authorities.

1995:

The Chatham Islands County was dissolved and reconstituted by a specific Act of Parliament as the "Chatham Islands Territory", with powers similar to those of territorial authorities and some functions similar to those of a regional council. This included the addition of territorial sea, a coastal buffer extending to twelve nautical miles from the coastline.

1995:

Tasman District boundary extended to align with the Tasman Region boundary at the 12-mile limit.

1998:

Not Applicable category changed to Area Outside Territorial Authority

2004:

Tauranga District changed to Tauranga City.

2006:

Banks Peninsula District merged into Christchurch City as a result of a Local Government Commission decision following a 2005 referendum.

2010:

Auckland Council established under the Local Government (Tamaki Makaurau Reorganisation) Act 2009. Rodney District, North Shore City, Waitakere City, Auckland City, Manukau City, Papakura District, and Franklin District territorial councils, and the Auckland Regional Council, were abolished to become a unitary authority known as the Auckland Council. The area now consists of one city council (with statutory provision for three Māori councillors), 13 wards, and 21 local boards.

2015:

Wanganui District Council name changed to Whanganui District Council effective 1 December 2015.

2020:

Ōtorohanga District Council name amended to Ōtorohanga District Council.

Opotiki District Council name amended to Ōpōtiki District Council.

Both changes were under schedule 2 of the Local Government Act 2002 and effective 17 January 2020.

2021:

A local government reorganisation transferred land between two territorial authorities, Western Bay of Plenty District and Tauranga City. The changes took effect on 19 February 2021 under schedule 3 of the Local Government Act 2002. Refer to the New Zealand Gazette notice for further details.

2023:

A local government reorganisation transferred land between two territorial authorities, Whakatane District and Kawerau District. The changes took effect on 1 September 2024 under schedule 3 of the Local Government Act 2002. Refer to the New Zealand Gazette notice for further details.

Numbering

The territorial authority classification is a flat classification. Territorial authorities are given a unique three-digit code. The classification contains 68 categories (including ‘999 – Area Outside Territorial Authority’).

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Clipped Version

This clipped version has been created for cartographic purposes and so does not fully represent the official full extent boundaries.

​

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. The HD version is aligned to the LINZ cadastre.

​

Macrons

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

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Digital data

Digital boundary data became freely available on 1 July 2007.

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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

This map contains the DEM for LiDAR data in the Auckland Region. Auckland southern region: LiDAR was captured for Auckland Council by AAM New Zealand between September 2016 to June 2017. Auckland northern region: LiDAR was captured for Auckland Council by Aerial Surveys from 16 August 2016 to 9 August 2018. Data management and distribution is by Toitū Te Whenua Land Information New Zealand. 1 metre DEMPulse density specification is at a minimum of 4 pulses/square metreVertical Accuracy Specification is +/- 0.2mHorizontal Accuracy Specification is +/- 0.6m (95%).Vertical datum is NZVD2016.Other links: Aotearoa New Zealand HIllshadeNZ Topographic Relief (Vector)NZ ElevationNZ DSM Hillshade

Topicality: 01-01-2025Projection: New Zealand Transverse Mercator (NZTM)This layer contains the latest set of the Territorial Authority and Local Board boundaries maintained by Stats NZ.This dataset is a derived version comprising local boards for Auckland and territorial authorities for the rest of New Zealand, as defined by the territorial authorities and/or Local Government Commission and maintained by Stats NZ(the custodian), clipped to the coastline. This clipped version has been created for map creation/cartographic purposes and so does not fully represent the official full extent boundaries.For statistical outputs that use territorial authorities to aggregate and report data Auckland Council is treated as a single geographic entity. This can hide meaningful patterns and trends for a significant portion of the population. A solution was to create a new classification of territorial authorities that includes the local boards for Auckland. The Auckland Council was established in 2010 under the Local Government (Tamaki Makaurau Reorganisation) Act 2009. Seven territorial authorities within the Auckland Region were abolished and replaced by the unitary authority Auckland Council. Local boards fall within the community board classificationThis layer gets updated yearly with the latest boundary data. A layer with the full archive of the data for all the available years is available here.For information about the fields in this dataset go to the Data tab.The layer is further generalised by Eagle Technology for improved performance on the web, therefore it doesn't fully represent the official boundaries.The official dataset can be found on https://datafinder.stats.govt.nz.This layer is offered by Eagle Technology (Official Esri Distributor). Eagle Technology offers services that can be used in the ArcGIS platform. The Content team at Eagle Technology updates the layers on a regular basis and regularly adds new content to the Living Atlas. By using this content and combining it with other data you can create new information products quickly and easily.If you have any questions or comments about the content, please let us now at livingatlas@eagle.co.nz

The Topo50 map series provides topographic mapping for the New Zealand mainland, the Chatham Islands, and offshore islands at 1:50,000 (some of the islands at 1:25,000) scale.

Along with the paper-based Topo50 map series, digital images of the maps are also publicly available.

Georeferenced raster digital images are provided at a resolution of 300 DPI. Georeferencing allows adjacent maps to be accurately and automatically aligned within GIS systems.

For more information, and a description of the georeferencing keys: http://www.linz.govt.nz/topography/topo-maps/topo50/digital-images

Please be aware of the following:

• The existence of a road or track does not necessarily indicate public right of access.

• Closed tracks are defined as being no longer maintained or passable and should not be used by recreationalists. The Department of Conservation or other authorities should be contacted for the latest information on tracks and huts.

• Not all aerial wires, cableways and obstructions that could be hazardous to aircraft are held in the data.

• Contours and spot elevations in forest and snow areas may be less accurate.

• Not all pipelines including both underground and above ground are held in the data or shown on the printed maps. For the latest information please contact the utility and infrastructure agencies

• Permits may be required to visit some sensitive and special islands and areas. Contact the Department of Conservation to see if you need to apply for a permit.

Geospatial data about Data quality for Total suspended particulates exceedances in Auckland. Export to CAD, GIS, PDF, CSV and access via API.

Geospatial data about Auckland 0.075m Urban Aerial Photos Survey Report (2024-2025). Export to CAD, GIS, PDF, CSV and access via API.

Geospatial data about Data quality TSP exceedances in Auckland. Export to CAD, GIS, PDF, CSV and access via API.

This dataset provides river name lines for mainland New Zealand. It is part of a pilot to understand the benefit of combining river names and location, and making these openly available through the LINZ Data Service.

Unnamed rivers are also included in this dataset.

How this data can be used

Together with the NZ River Name Polygons (Pilot) dataset, these are the first openly available datasets with NZ river names attributed to geometry features (lines and polygons). This data can be used for searching for a named river and zooming to its extents, extracting geometries of a named river, creating digital cartographic products displaying river names, and analysing other features against named rivers (e.g. identifying buildings or properties within a specified distance of a particular river).

Data vintage

The river names and extents in this dataset are based on the cartographic text shown on NZ Topo50 maps as of December 2018, and are an approximation and should not be taken as official. Further details are included in the 'Naming Extents Methodology' section in the 'Lineage' of this metadata. Please refer to the NZ River Name Lines and Polygons (Pilot) Data Dictionary for detailed metadata and information about this dataset.

Related data

NZ River Name Polygons (Pilot) - contains larger rivers captured as polygon features instead of lines.

We recommend using the two river name datasets with the following NZ Topo50 layers for connectivity and visualisation of inland hydrographic features.

• NZ Coastlines (Topo, 1:50k)

• NZ Island Polygons (Topo, 1:50k)

• NZ Lagoon Polygons (Topo, 1:50k)

• NZ Lake Polygons (Topo, 1:50k)

• NZ Pond Polygons (Topo, 1:50k)

• NZ Swamp Polygons (Topo, 1:50k)

The NZ River Name Lines and Polygons (Pilot) Data Dictionary provides details on how to download the matching time period snapshots of this data.

Please note

• Official geographic names as listed in the New Zealand Gazetteer of place names must be used in all official documents as per the New Zealand Geographic Board (Ngā Pou Taunaha o Aotearoa) Act 2008.

• This pilot dataset is unlikely to be updated, however feedback will be used for future enhancements to LINZ river datasets.

APIs and web services This dataset is available via ArcGIS Online and ArcGIS REST services, as well as our standard APIs. LDS APIs and OGC web services ArcGIS Online map services

Efficient utilisation of aggregate resources is critical to supporting infrastructure development and reducing operational and transport costs related to extraction of raw materials. To understand the spatial distribution of future resources, aggregate opportunity in the northern Auckland area has been mapped using modelling of geological, land use, infrastructure and cultural digital data to map where future resources could be located so they can be prioritised over less critical land uses to support our growing economy. Aggregate opportunity areas are places that have overlapping spatial data classes favourable for extractive activities. A spatial modelling approach has been used to identify places with opportunity for future hard rock, gravel and sand extraction. The resulting maps and their GIS based equivalent datasets of gravel and hard rock aggregate opportunity can be used to manage aggregate resources, generate targets for exploration activities and provide insight into future resources.

Appendix to GNS Science report 2024/11 consisting of 27 PDF maps and GIS data files. (DOI: https://doi.org/10.21420/DS28-ZG73)

DOI: https://doi.org/10.21420/1zkf-sh56

Cite as: Hill, MP & Chilton, MO. 2024. Aggregate opportunity modelling for the northern Auckland area of New Zealand [digital appendix]. Lower Hutt (NZ): GNS Science. https://doi.org/10.21420/1zkf-sh56

See the distribution tab below to download digital appendix data as ZIP file from AWS.

Contours dataset generated from LiDAR data captured between 2016 – 2018.Vertical datum:NZVD2016Auckland NorthLidar was captured for Auckland Council by Aerial Surveys ASL between August 2016 to August 2018. The dataset was generated by Aerial Surveys and their subcontractors. The survey area includes Auckland CBD, Great Barrier Island, Little Barrier Island, North Shore, Waiheke Island, Wellsford, Whangaparaoa, Whatipu, and the surrounding area.Survey Date: 08/01/2016 - 08/01/2018Auckland SouthLidar was captured for Auckland Council by AAM New Zealand between September 2016 through to June 2017. The original dataset was generated by AAM New Zealand and their subcontractors. The survey area covers the southern Auckland suburbs and regions.Survey Date: 09/09/2016 - 02/06/2017License: Creative Commons 4.0Additional InfoThe vendors’ quality management system for point-location comprised Airborne Global Position System (AGPS for spatial location), inertial measurement unit (IMU for aircraft orientation), and raw laser return (as returns 1,2,3,4) with attributes number/time/angle etc., which allow geometric calculation of actual laser strike location at ground level. AGPS locations were refined by corrections made relative to base stations on the ground. The resultant LAS file (v1.2 format) is an international standard binary package for LiDAR data with return, intensity value, xyz coordinates, and other classification attributes. Target raw point density was 4 points/m2 on open ground with actual density varying around this target depending on ground cover and terrain interference. LiDAR swaths were flown with 25% overlap. Tidal areas were flow within 1.5 hours of gazetted low tide (noting local variation in actual lowest water level). Raw points were classified to ICSM level 3 (99% accuracy on ground point designation), with full class set as per the following Classification [1=unclassified, 2=bare ground, 3= low vegetation, 4=medium vegetation, 5=high vegetation, 6=buildings/structures, 7=low/high points, 9=water, 10=bridge, 12=surplus points at swath overlap].Data are stored in LINZ Topo50 1k tiles (720m x 480m). Enforced levels (‘hydro-flattening’) were applied to static water bodies.Specifications (ASL / AAM): Scan angle (34-36 / 20-29deg); Pulse rate (150/320-330 kHz); Laser footprint size ~0.3; Target lidar ground point vertical accuracy (RMS 0.1m, 95% CL ~ 0.3m); Horizontal accuracy (0.3m); Vertical accuracy from limited validation (95% CL ~0.1, AAM only) ; DEM / DSM / Intensity grid (1m spacing); Contours (line geometry) 0.25m elevation steps. Coastal and intertidal data was collected at within 1.5 hours either side of low tide.

Dataset contains ethnic group census usually resident population counts from the 2013, 2018, and 2023 Censuses, as well as the percentage change in the ethnic group population count between the 2013 and 2018 Censuses, and between the 2018 and 2023 Censuses. Data is available by territorial authority and Auckland local board.

The ethnic groups are:

• European
• Māori
• Pacific peoples
• Asian
• Middle Eastern/Latin American/African
• Other ethnicity.

Map shows percentage change in the census usually resident population count for ethnic groups between the 2018 and 2023 Censuses.

Download lookup file from Stats NZ ArcGIS Online or embedded attachment in Stats NZ geographic data service. Download data table (excluding the geometry column for CSV files) using the instructions in the Koordinates help guide.

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Footnotes

Geographical boundaries

Statistical standard for geographic areas 2023 (updated December 2023) has information about geographic boundaries as of 1 January 2023. Address data from 2013 and 2018 Censuses was updated to be consistent with the 2023 areas. Due to the changes in area boundaries and coding methodologies, 2013 and 2018 counts published in 2023 may be slightly different to those published in 2013 or 2018.

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Subnational census usually resident population

The census usually resident population count of an area (subnational count) is a count of all people who usually live in that area and were present in New Zealand on census night. It excludes visitors from overseas, visitors from elsewhere in New Zealand, and residents temporarily overseas on census night. For example, a person who usually lives in Christchurch city and is visiting Wellington city on census night will be included in the census usually resident population count of Christchurch city.

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Caution using time series

Time series data should be interpreted with care due to changes in census methodology and differences in response rates between censuses. The 2023 and 2018 Censuses used a combined census methodology (using census responses and administrative data), while the 2013 Census used a full-field enumeration methodology (with no use of administrative data).

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About the 2023 Census dataset

For information on the 2023 dataset see Using a combined census model for the 2023 Census. We combined data from the census forms with administrative data to create the 2023 Census dataset, which meets Stats NZ's quality criteria for population structure information. We added real data about real people to the dataset where we were confident the people who hadn’t completed a census form (which is known as admin enumeration) will be counted. We also used data from the 2018 and 2013 Censuses, administrative data sources, and statistical imputation methods to fill in some missing characteristics of people and dwellings.

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Data quality

The quality of data in the 2023 Census is assessed using the quality rating scale and the quality assurance framework to determine whether data is fit for purpose and suitable for release. Data quality assurance in the 2023 Census has more information.

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Quality rating of a variable

The quality rating of a variable provides an overall evaluation of data quality for that variable, usually at the highest levels of classification. The quality ratings shown are for the 2023 Census unless stated. There is variability in the quality of data at smaller geographies. Data quality may also vary between censuses, for subpopulations, or when cross tabulated with other variables or at lower levels of the classification. Data quality ratings for 2023 Census variables has more information on quality ratings by variable.

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Ethnicity concept quality rating

Ethnicity is rated as high quality.

Ethnicity – 2023 Census: Information by concept has more information, for example, definitions and data quality.

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Using data for good

Stats NZ expects that, when working with census data, it is done so with a positive purpose, as outlined in the Māori Data Governance Model (Data Iwi Leaders Group, 2023). This model states that "data should support transformative outcomes and should uplift and strengthen our relationships with each other and with our environments. The avoidance of harm is the minimum expectation for data use. Māori data should also contribute to iwi and hapū tino rangatiratanga”.

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Confidentiality

The 2023 Census confidentiality rules have been applied to 2013, 2018, and 2023 data. These rules protect the confidentiality of individuals, families, households, dwellings, and undertakings in 2023 Census data. Counts are calculated using fixed random rounding to base 3 (FRR3) and suppression of ‘sensitive’ counts less than six, where tables report multiple geographic variables and/or small populations. Individual figures may not always sum to stated totals. Applying confidentiality rules to 2023 Census data and summary of changes since 2018 and 2013 Censuses has more information about 2023 Census confidentiality rules.

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Symbol

-998 Not applicable

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Percentages

To calculate percentages, divide the figure for the category of interest by the figure for ‘Total stated’ where this applies.

This dataset is the definitive set of annually released territorial authority boundaries for 2022 as defined the territorial authorities and/or Local Government Commission and maintained by Stats NZ (the custodian). This version contains 68 features.

A territorial authority is defined under the Local Government Act 2002 as a city or a district council. There are 67 territorial authorities in New Zealand. Territorial authorities are the second tier of local government in New Zealand, below regional councils. The 67 territorial authorities comprise 13 city councils including the Auckland council, 53 district councils, and the Chatham Islands Territory.

Territorial authorities are defined at meshblock level. Statistical area 1 and statistical area 2 geographies nest within territorial authority boundaries

Names are provided with and without tohutō/macrons. The name field without macrons is suffixed ‘ASCII’. This generalised version has been simplified for rapid drawing and is designed for thematic or web mapping purposes. Digital boundary data became freely available on 1 July 2007.

Service provides layers for existing stops and scheduled routes for trains as sourced from IVU GTFS data. IVU holds data relating to AT public transport operations only so does not necessarily reflect all stops across the Auckland region (e.g. train lines where AT do not run services such as Helensville to Wellsford do not appear in this dataset).