Meshblock

Mesh blocks or meshblocks are a small geographic unit used in the census of several countries.

New Zealand

New Zealand's countrywide meshblock framework was first set up in 1976,[1] although the term dates back to at least the 1916 census.[2] The meshblock pattern is updated each year. It comprised 41,376 meshblocks at the 2006 census,[3] increasing to 46,637 meshblocks in 2013,[4] and to 53,589 in 2018.[5]

Meshblocks are defined by Statistics New Zealand as being "the smallest geographic unit for which statistical data is collected and processed by Statistics New Zealand". It is a defined area, varying in size from part of a city block to large areas of rural land. Each of these borders another to form a network covering the whole country including inlets and coasts, and extending out to the 200 nautical miles (370 km; 230 mi) economic zone. Meshblocks are added together to "build up" larger geographic areas such as area units and urban areas. They are also used to draw up and define New Zealand electorates and local authority boundaries.[6]

Australia

In Australia mesh blocks were developed by the Australian Bureau of Statistics from 2006, and released in February 2008, although they were not fully implemented until 2011. The 2016 Australian Statistical Geography Standard contains 358,122 mesh blocks in Australia.[7] They are intended to be the basic unit which comprise all other administrative boundaries that are defined by the ABS. Political administrative boundaries (local, state and federal), suburbs, postal, and cadastral are approximated by mesh block allocations. This is so that statistics can be easily made available for the many types of uses needed, such as non-standard areas like water catchments etc. Mesh blocks are about four or five times smaller than the previously used Census Collection Districts.[8] Most of those in residential areas cover an area of around 30–60 dwellings, which is meant to be the smallest size data can be gathered so that people would not be able to be identified.

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References
  1. "Mapping and related technologies in Statistics New Zealand". The Fourth Meeting of the Working Party on the Application of New Technology to Population Data. Manila: United Nations Economic and Social Commission for Asia and the Pacific (UNESCAP). 6–9 July 1999. STAT/WPA(4)/1/New Zealand. Retrieved 12 October 2013.
  2. "Meshblock". Classifications and related statistical standards. Statistics New Zealand. Archived from the original on 14 October 2013. Retrieved 12 October 2013.
  3. "Geographic hierarchy". Statistics New Zealand. Archived from the original on 14 October 2013. Retrieved 12 October 2013.
  4. "Meshblocks 2013 Annual Pattern". ANZLIC 2013 Digital Boundaries Metadata. Statistics New Zealand. Retrieved 12 October 2013.
  5. "ANZLIC Metadata for 2018 Meshblock as defined by Stats NZ". Stats NZ. Stats NZ. Retrieved 17 November 2019.
  6. "Meshblock (Concept)". Statistics New Zealand. 2 February 2016.
  7. 1270.0.55.001 – Australian Statistical Geography Standard (ASGS): Volume 1 – Main Structure and Greater Capital City Statistical Areas, July 2016
  8. councils.wa Issue 35 3 September 2004

See also
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