Number of 1-year-olds, by sex in New Zealand

New Zealand: Number of 1-year-olds, by sex was 28,731 people in 2023. ▲ Rising

Latest (2023)
28,731 people
Change on year
down 0.6%
World rank
128th
of 236 countries
All-time high
31,095 people
in 2011
All-time low
23,061 people
in 1951
Years of data
74
1950–2023

Number of 1-year-olds, by sex in New Zealand, 1950–2023

010.0k20.0k30.0k195019862023

Source: UN, World Population Prospects (2024) – processed by Our World in Data. Measured in people.

Analysis

New Zealand recorded 28,731 people for number of 1-year-olds, by sex in 2023.

The figure is down 0.6% on the previous year and down 4.3% over ten years.

Over the whole period, number of 1-year-olds, by sex in New Zealand peaked at 31,095 people in 2011 and was at its lowest, 23,061 people, in 1951.

That places New Zealand 128th out of 236 countries with data for 2023, putting it in the middle of the range.

The long-run direction has been consistently rising across the 74 years of available data.

Number of 1-year-olds, by sex in New Zealand, year by year

Annual values for Number of 1-year-olds, by sex in New Zealand, 1950 to 2023.
Year people Change
1950 23,108 people —
1951 23,061 people -0.2%
1952 23,436 people +1.6%
1953 24,076 people +2.7%
1954 24,664 people +2.4%
1955 25,207 people +2.2%
1956 25,829 people +2.5%
1957 26,574 people +2.9%
1958 27,469 people +3.4%
1959 28,357 people +3.2%
1960 29,076 people +2.5%
1961 29,721 people +2.2%
1962 30,366 people +2.2%
1963 30,800 people +1.4%
1964 30,647 people -0.5%
1965 29,756 people -2.9%
1966 28,779 people -3.3%
1967 28,546 people -0.8%
1968 28,881 people +1.2%
1969 29,271 people +1.4%
1970 29,506 people +0.8%
1971 29,585 people +0.3%
1972 29,886 people +1.0%
1973 30,238 people +1.2%
1974 29,851 people -1.3%
1975 28,715 people -3.8%
1976 27,408 people -4.6%
1977 26,424 people -3.6%
1978 25,804 people -2.3%
1979 25,285 people -2.0%
1980 24,945 people -1.3%
1981 24,718 people -0.9%
1982 24,425 people -1.2%
1983 24,228 people -0.8%
1984 24,296 people +0.3%
1985 24,553 people +1.1%
1986 24,928 people +1.5%
1987 25,488 people +2.2%
1988 26,111 people +2.4%
1989 26,651 people +2.1%
1990 27,687 people +3.9%
1991 28,918 people +4.4%
1992 29,239 people +1.1%
1993 28,820 people -1.4%
1994 28,377 people -1.5%
1995 28,208 people -0.6%
1996 28,079 people -0.5%
1997 27,895 people -0.7%
1998 27,878 people -0.1%
1999 27,638 people -0.9%
2000 27,257 people -1.4%
2001 27,358 people +0.4%
2002 27,412 people +0.2%
2003 27,182 people -0.8%
2004 27,337 people +0.6%
2005 27,812 people +1.7%
2006 28,227 people +1.5%
2007 28,955 people +2.6%
2008 30,088 people +3.9%
2009 30,864 people +2.6%
2010 31,090 people +0.7%
2011 31,095 people +0.0%
2012 30,670 people -1.4%
2013 30,011 people -2.1%
2014 29,407 people -2.0%
2015 28,936 people -1.6%
2016 28,878 people -0.2%
2017 29,151 people +0.9%
2018 29,358 people +0.7%
2019 29,247 people -0.4%
2020 29,133 people -0.4%
2021 29,203 people +0.2%
2022 28,913 people -1.0%
2023 28,731 people -0.6%

New Zealand compared with similar countries

  • New Zealand's 28,731 people is above the median for high income countries, which is 11,586 people, 2.5× the median. (85 countries reporting)
  • New Zealand's 28,731 people is above the median for East Asia & Pacific, which is 14,573 people, 2.0× the median. (37 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1950s 25,178 people 23,061 people 28,357 people 10
1960s 29,584 people 28,546 people 30,800 people 10
1970s 28,270 people 25,285 people 30,238 people 10
1980s 25,034 people 24,228 people 26,651 people 10
1990s 28,274 people 27,638 people 29,239 people 10
2000s 28,249 people 27,182 people 30,864 people 10
2010s 29,784 people 28,878 people 31,095 people 10
2020s 28,995 people 28,731 people 29,203 people 4

Countries ranked near New Zealand

  1. 125 Denmark 29,977 people compare
  2. 126 Bulgaria 29,954 people compare
  3. 127 Guinea-Bissau 29,733 people compare
  4. 129 Ireland 28,245 people compare
  5. 130 Slovakia 26,988 people compare
  6. 131 Norway 26,852 people compare

See the full ranking of 236 places →

More reference data data for New Zealand

All data for New Zealand →

Frequently asked questions

What is number of 1-year-olds, by sex in New Zealand?
Number of 1-year-olds, by sex in New Zealand was 28,731 people in 2023, according to UN, World Population Prospects (2024) – processed by Our World in Data.
What is the highest number of 1-year-olds, by sex recorded in New Zealand?
The highest recorded value was 31,095 people in 2011.
What is the lowest number of 1-year-olds, by sex recorded in New Zealand?
The lowest recorded value was 23,061 people in 1951.
How does New Zealand rank for number of 1-year-olds, by sex?
New Zealand ranks 128th out of 236 countries with data for 2023.
Is number of 1-year-olds, by sex rising or falling in New Zealand?
Over the last ten years it is down 4.3%. The long-run trend across the full record is rising.
Where does this New Zealand data come from?
The figures come from UN, World Population Prospects (2024) – processed by Our World in Data, published as part of Number of 1-year-olds, by sex. Statizoid updates them automatically from the source API.

Download this data

CSV · JSON — 74 observations, free to reuse under CC BY 4.0 (Our World in Data).

Share, cite or embed this page

Cite this page

Number of 1-year-olds, by sex in New Zealand. Statizoid, drawing on UN, World Population Prospects (2024) – processed by Our World in Data. Retrieved 29 September 2026, from https://reference.statizoid.com/stat/number-of-one-year-olds/new-zealand/

Embed or link this data

Paste this into a page to link back to these figures. The data itself is free to reuse under CC BY 4.0 (Our World in Data); please keep the attribution.

<a href="https://reference.statizoid.com/stat/number-of-one-year-olds/new-zealand/">Number of 1-year-olds, by sex in New Zealand</a> — Statizoid

About this data

Indicator
Number of 1-year-olds, by sex
Unit
people
Source
UN, World Population Prospects (2024) – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
236 places, 17,464 data points, 1950–2023
Last refreshed

Total population, measured on 1 July of the year shown. This only includes women aged 1.