The following information applies to all values in the table.
Census Year: 2023, Subject population: Census usually resident population, Region: Total New Zealand, Birthplace: Overseas, Unit: Count
You can use this data confidently. Stats NZ rated it as high quality.
For more information, read about response rates below.
Stats NZ gives data an overall rating based on sources and coverage, consistency, and data quality.
Why am I seeing this?
This data is from the Census. The past two censuses had relatively low response rates, particularly for some areas of New Zealand and groups of people.
Where information was missing or unreadable, Stats NZ attempted to use data from a range of places such as previous censuses or administrative data that is collected by other government agencies. If that isn't available, Stats NZ use statistical models to predict what the missing data would have been. This is called imputation.
Things to be aware of
In some cases on the paper form, respondents provided broader regions instead of countries. It was not possible to code these to the lowest level of the classification.
Birthplace refers to the country where a person was born and uses the name of the country at the time of the census. Country is the current, short or official name of a country, dependency, or other area of particular geopolitical interest. The term is defined to include:
- independent countries recognised by the New Zealand Government
- units that are recognised geographic areas
- administrative subdivisions of the United Kingdom
- overseas dependencies, or external territories of independent countries.
This information was meant to be collected for all people on census night, though all analysis is conducted on the usually resident population (which excludes tourists).
Response rates and final data sources
For birthplace, the response rate from 2023 Census forms was 85.3%. In addition, 5.3% of responses were sourced from forms submitted during the 2018 or 2013 Census. 11.6% were sourced from administrative data such as the births register and migration datasets. Stats NZ was not able to source country of birth data for 0.8% of people.
For age group, the response rate from 2023 Census forms was 89.7%. The remaining 10.2% of responses were sourced from administrative records and 0.1% from statistical imputation.
Definitions
Census usually resident population count of New Zealand: a count of all people who usually live in and were present in New Zealand on census night. It excludes overseas visitors and New Zealand residents who are temporarily overseas.
Census night population count of New Zealand: a count of all people present in New Zealand on census night. This includes visitors from overseas who are counted on census night but excludes residents who are temporarily overseas on census night.
Response 'stated': Members of the subject population (eg. people or dwelling) for which the data was obtained through a census form, administrative sources, or imputed.
Data calculation/treatment
This data has been randomly rounded to protect confidentiality. Figure.NZ calculated percentages based on the 'Total stated' values for each variable. Individual percentages may not sum to 100% and values for the same data may vary in different tables.
Geographically the census includes the North Island, South Island, Stewart Island, and the Chatham Islands, plus largely uninhabited islands including the Kermadec Islands, Three Kings Islands, Mayor Island, Motiti Island, White Island, Moutohora Island, Bounty Islands, Snares Islands, Antipodes Islands, Auckland Islands, and Campbell Island.
From the dataset Census: Birthplace (detailed level 3) and age (5-year groups) for the census usually resident population count, 2013, 2018, and 2023 Censuses, this data was extracted:
The New Zealand Census of Population and Dwellings is the official count of how many people and dwellings there are in New Zealand. It provides a snapshot of our society at a point in time and helps to tell the story of its social and economic change. The 2023 Census, held on Tuesday 7 March, was the 35th New Zealand Census of Population and Dwellings. The first official census was run in 1851, and since 1877 there has been a census every five years, with only four exceptions.
Purpose of collection
Census information is used by government agencies, local authorities, businesses, community organisations, and the public for developing and implementing new policies, research, planning, and decision-making. It helps us make decisions about how to best use public funding, especially in areas of health, education, housing, and transport.
The census is also the primary source of information used for deciding the number of general and Māori electorates, along with data from the corresponding Māori Electoral Option.