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Subnational Population Estimates: At 30 June 2015 (provisional)
Embargoed until 10:45am  –  22 October 2015
Definitions

About subnational population estimates

Population estimates give the best available measure of the size and age-sex structure of the population usually living in an area. Current estimates are based on 2013 Census data and on births, deaths, and migration since the 2013 Census.

We publish subnational population estimates annually and national population estimates quarterly.

New Zealand's estimated resident population is generally higher than the census usually resident population count. The estimated resident population includes New Zealand residents temporarily overseas at the time of the census, an allowance for residents missed or counted more than once by the census (net census undercount), and for population change between census night and the reference date of the estimate.

More definitions

Census usually resident population count: a count of all people who usually live in a given area and are present in New Zealand on census night. This count excludes visitors from overseas, visitors from elsewhere in New Zealand, and residents temporarily overseas on census night. The population counts published from the census are not directly comparable with the estimated resident population.

Estimated resident population: an estimate of all people who usually live in an area at a given date. It includes:

  • all residents present in New Zealand and counted by the census (census usually resident population count)
  • residents who are temporarily overseas (who are not included in the census)
  • an adjustment for residents missed or counted more than once by the census (net census undercount).

It excludes visitors from elsewhere in New Zealand and visitors from overseas.

The 2015 subnational population estimates are based on the 2013 Census, and include updates for births, deaths, and net migration (arrivals less departures) of residents during the period between census night and 30 June 2015.

For more detailed definitions see Standard for population terms.

Internal migration: migration between areas of New Zealand.

International migration: migration into or out of New Zealand. International migration statistics are based on 'permanent and long-term' migration statistics, which are primarily determined by passengers' responses on arrival or departure cards to the questions on where they live and their intended length of stay or absence.

International migrant arrivals: people from overseas arriving to live in New Zealand for 12 months or more (including permanently), and New Zealanders returning after an absence of 12 months or more. (Referred to as permanent and long-term arrivals in international migration statistics.)

International migrant departures: New Zealanders departing for an absence of 12 months or more (including permanently), and people from overseas departing after a stay of 12 months or more in New Zealand. (Referred to as permanent and long-term departures in international migration statistics.)

Local board area: an area governed by local boards and Auckland council. Auckland has 21 local board areas, based on boundaries at 1 January 2015.

Median age: half the population is younger, and half older, than this age.

Natural increase or decrease: natural increase is an excess of births over deaths. Natural decrease is an excess of deaths over births.

Net migration: the difference between the number of people who have moved to, and departed from, a given area. Subnational net migration includes both international migration and internal migration.

North Island and South Island: the population of the North Island is the sum of the population of North Island regions. The population of the South Island is the sum of the population of South Island regions.

Regional council area (or region): an area governed by a regional council. New Zealand has 16 regional council areas, based on boundaries at 1 January 2015.

Territorial authority area: an area governed by a territorial authority. New Zealand has 67 territorial authority areas, based on boundaries at 1 January 2015.

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