Unsentenced detainees as a proportion of overall prison population in New Zealand

New Zealand: Unsentenced detainees as a proportion of overall prison population was 42.3% in 2024. ▲ Rising

Latest (2024)
42.3%
Change on year
up 3.2%
World rank
44th
of 153 countries
All-time high
42.3%
in 2024
All-time low
15.9%
in 2004
Years of data
21
2003–2024

Unsentenced detainees as a proportion of overall prison population in New Zealand, 2003–2024

0102030402003201320242003: 16.5 %2004: 15.9 %2005: 17.1 %2006: 17.8 %2007: 19.4 %2008: 20.1 %2009: 20.3 %2010: 20.1 %2011: 20.5 %2012: 20.2 %2013: 18.3 %2014: 21.1 %2015: 25 %2016: 27.9 %2017: 28.3 %2018: 30.5 %2019: 36.6 %2020: 35.1 %2021: 37.4 %2022: 41 %2024: 42.3 %

Source: United Nations Office on Drugs and Crime – processed by Our World in Data. Measured in %.

Analysis

The most recent figure for unsentenced detainees as a proportion of overall prison population in New Zealand is 42.3%, measured in 2024. That is the highest value across all 21 years on record.

That represents a change of up 3.2% on the previous year and up 100.3% over ten years.

Over the whole period, unsentenced detainees as a proportion of overall prison population in New Zealand peaked at 42.3% in 2024 and was at its lowest, 15.9%, in 2004.

That places New Zealand 44th out of 153 countries with data for 2024, putting it in the middle of the range.

The long-run direction has been consistently rising across the 21 years of available data.

Unsentenced detainees as a proportion of overall prison population in New Zealand, year by year

Annual values for Unsentenced detainees as a proportion of overall prison population in New Zealand, 2003 to 2024.
Year % Change
2003 16.5%
2004 15.9% -3.2%
2005 17.1% +7.2%
2006 17.8% +4.0%
2007 19.4% +9.5%
2008 20.1% +3.2%
2009 20.3% +1.0%
2010 20.1% -0.9%
2011 20.5% +2.1%
2012 20.2% -1.6%
2013 18.3% -9.2%
2014 21.1% +15.1%
2015 25.0% +18.6%
2016 27.9% +11.6%
2017 28.3% +1.4%
2018 30.5% +7.8%
2019 36.6% +20.0%
2020 35.1% -4.1%
2021 37.4% +6.6%
2022 41.0% +9.4%
2024 42.3% +3.2%

Averages by decade

DecadeAverage LowestHighest Years
2000s 18.1% 15.9% 20.3% 7
2010s 24.9% 18.3% 36.6% 10
2020s 38.9% 35.1% 42.3% 4

Countries ranked near New Zealand

  1. 41 Papua New Guinea 42.9% compare
  2. 42 Iceland 42.6% compare
  3. 43 Croatia 42.4% compare
  4. 45 Monaco 41.9% compare
  5. 46 Kenya 41.0% compare
  6. 47 Hong Kong 40.6% compare

See the full ranking of 153 places →

More population data for New Zealand

All data for New Zealand →

Frequently asked questions

What is unsentenced detainees as a proportion of overall prison population in New Zealand?
Unsentenced detainees as a proportion of overall prison population in New Zealand was 42.3% in 2024, according to United Nations Office on Drugs and Crime – processed by Our World in Data.
What is the highest unsentenced detainees as a proportion of overall prison population recorded in New Zealand?
The highest recorded value was 42.3% in 2024.
What is the lowest unsentenced detainees as a proportion of overall prison population recorded in New Zealand?
The lowest recorded value was 15.9% in 2004.
How does New Zealand rank for unsentenced detainees as a proportion of overall prison population?
New Zealand ranks 44th out of 153 countries with data for 2024.
Is unsentenced detainees as a proportion of overall prison population rising or falling in New Zealand?
Over the last ten years it is up 100.3%. The long-run trend across the full record is rising.
Where does this New Zealand data come from?
The figures come from United Nations Office on Drugs and Crime – processed by Our World in Data, published as part of Unsentenced detainees as a proportion of overall prison population. Statizoid updates them automatically from the source API.

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Unsentenced detainees as a proportion of overall prison population in New Zealand. Statizoid, drawing on United Nations Office on Drugs and Crime – processed by Our World in Data. Retrieved 30 August 2026, from https://population.statizoid.com/stat/unsentenced-detainees-as-proportion-of-prison-population/new-zealand/

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About this data

Indicator
Unsentenced detainees as a proportion of overall prison population
Unit
%
Source
United Nations Office on Drugs and Crime – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
153 places, 2,324 data points, 2001–2024
Last refreshed

Unsentenced detainees as a proportion of overall prison population (%).