Wastewater - connection rates to treatment — Public total treatment in New Zealand
New Zealand: Wastewater - connection rates to treatment — Public total treatment was 84.1 Percentage of population in 2016. ▬ Flat
Wastewater - connection rates to treatment — Public total treatment in New Zealand, 1990–2016
Source: Organisation for Economic Co-operation and Development. Measured in Percentage of population.
Analysis
New Zealand recorded 84.1 Percentage of population for wastewater - connection rates to treatment — public total treatment in 2016. That is the highest value across all 23 years on record.
The figure is up 3.2% over ten years.
Over the whole period, wastewater - connection rates to treatment — public total treatment in New Zealand peaked at 84.1 Percentage of population in 2015 and was at its lowest, 80 Percentage of population, in 1990.
New Zealand ranks 19th of 36 countries on this measure, in the middle of the range.
Wastewater - connection rates to treatment — Public total treatment in New Zealand, year by year
| Year | Percentage of population | Change |
|---|---|---|
| 1990 | 80 Percentage of population | — |
| 1995 | 80 Percentage of population | +0.0% |
| 1996 | 80 Percentage of population | +0.0% |
| 1997 | 80 Percentage of population | +0.0% |
| 1998 | 80 Percentage of population | +0.0% |
| 1999 | 80 Percentage of population | +0.0% |
| 2000 | 80.8 Percentage of population | +1.0% |
| 2001 | 80.5 Percentage of population | -0.4% |
| 2002 | 80.5 Percentage of population | +0.0% |
| 2003 | 80.8 Percentage of population | +0.4% |
| 2004 | 81.1 Percentage of population | +0.4% |
| 2005 | 81.3 Percentage of population | +0.2% |
| 2006 | 81.5 Percentage of population | +0.2% |
| 2007 | 81.6 Percentage of population | +0.1% |
| 2008 | 81.7 Percentage of population | +0.1% |
| 2009 | 81.7 Percentage of population | +0.0% |
| 2010 | 81.8 Percentage of population | +0.1% |
| 2011 | 82 Percentage of population | +0.2% |
| 2012 | 82 Percentage of population | +0.0% |
| 2013 | 82 Percentage of population | +0.0% |
| 2014 | 82 Percentage of population | +0.0% |
| 2015 | 84.1 Percentage of population | +2.6% |
| 2016 | 84.1 Percentage of population | +0.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 80 Percentage of population | 80 Percentage of population | 80 Percentage of population | 6 |
| 2000s | 81.15 Percentage of population | 80.5 Percentage of population | 81.7 Percentage of population | 10 |
| 2010s | 82.57 Percentage of population | 81.8 Percentage of population | 84.1 Percentage of population | 7 |
Countries ranked near New Zealand
- 16 Finland 85 Percentage of population compare
- 17 Hungary 84.54 Percentage of population compare
- 18 Belgium 84.5 Percentage of population compare
- 20 France 82 Percentage of population compare
- 21 Japan 81.1 Percentage of population compare
- 22 United States of America 75.5 Percentage of population compare
More environment data for New Zealand
- Historical exposure to drought — Land soil moisture anomaly -0.2131 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly 1.69 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.379 °C (2025)
- Temperature change 1.23 °C (2025)
- Sawnwood — Export quantity, per unit of GDP 0 m3 per US$ of GDP (2024)
- Sawnwood — Export quantity, per capita 0.3152 m3 per person (2024)
- Sawnwood — Export value, annual growth rate 16.9 % change on previous year (2024)
- Sawnwood — Export value, per unit of GDP 0 1000 USD per US$ of GDP (2024)
- Sawnwood — Export value, per capita 0.117 1000 USD per person (2024)
Frequently asked questions
- What is wastewater - connection rates to treatment — public total treatment in New Zealand?
- Wastewater - connection rates to treatment — public total treatment in New Zealand was 84.1 Percentage of population in 2016, according to Organisation for Economic Co-operation and Development.
- What is the highest wastewater - connection rates to treatment — public total treatment recorded in New Zealand?
- The highest recorded value was 84.1 Percentage of population in 2015.
- What is the lowest wastewater - connection rates to treatment — public total treatment recorded in New Zealand?
- The lowest recorded value was 80 Percentage of population in 1990.
- How does New Zealand rank for wastewater - connection rates to treatment — public total treatment?
- New Zealand ranks 19th out of 36 countries with data for 2016.
- Is wastewater - connection rates to treatment — public total treatment rising or falling in New Zealand?
- Over the last ten years it is up 3.2%. The long-run trend across the full record is flat.
- Where does this New Zealand data come from?
- The figures come from Organisation for Economic Co-operation and Development, published as part of Wastewater - connection rates to treatment — Public total treatment. Statizoid updates them automatically from the source API.
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About this data
This dataset provides information on the level of public equipment installed by countries to managed and abate water pollution. It shows the percentage of national population connected to "public" sewerage networks and related treatment facilities, and the percentage of national population connected to "public" wastewater treatment plants, and the degree of treatment. Connected here means actually connected to a wastewater plants through a public sewage network. When analysing these data, it should be kept in mind that the optimal connection rate is not necessarily 100%. It may vary among countries and depends on geographical features and on the spatial distribution of habitats. The interpretation of those data should take into account some variations in countries' definitions, as reflected in metadata. Data source(s): Joint OECD/Eurostat questionnaire on Inland Waters. Data for non-OECD countries is sourced from UNSD (https://unstats.un.org/unsd/envstats/country_files) Contact: ENV.Stat@oecd.org Dataset release date: August 7, 2026 Country metadata - Métadonnées pays