Coverage results from the Post-enumeration Survey (PES) for the 2013 Census show that:
- The census counted 97.6 percent of New Zealand residents in the country on census night, 5 March 2013, with a sampling error of ±0.5 percent.
- The national net undercount was 2.4 percent, or 103,800 people.
- The gross undercount was 135,500 people, offset by a gross overcount of 31,700 people (those counted more than once).
- Males (2.6 percent) had a higher percentage undercount than females (2.1 percent).
- Younger adults aged 15–29 years (4.8 percent) had a higher percentage undercount than other age groups.
- People aged 65 years and over had the lowest percentage undercount by age group, at 0.5 percent.
- The percentage undercount for Māori (6.1 percent) and Pacific peoples (4.8 percent), with young age structures, was higher than for Asian (3.0 percent) and European (1.9 percent).
- The northern North Island had an undercount of 3.0 percent, compared with 1.3 percent for the rest of the North Island and 2.2 percent for the South Island.
- The census response rate was 92.9 percent of the estimated population of New Zealand residents in the country on census night.
Liz MacPherson, Government Statistician
ISBN 978-0-478-40899-7 (online)
27 May 2014