Lake water quality trophic state in New Zealand
New Zealand: Lake water quality trophic state was 1.8% in 2021. ▼ Falling
Latest (2021)
1.8%
Change on year
down 22.5%
World rank
30th
of 121 countries
All-time high
4.2%
in 2017
All-time low
1.8%
in 2021
Years of data
5
2017–2021
Lake water quality trophic state in New Zealand, 2017–2021
Source: United Nations Statistics Division, SDG Global Database.
Analysis
New Zealand recorded 1.8% for lake water quality trophic state in 2021. That is the lowest value across all 5 years on record.
Compared with earlier readings it is down 22.5% on the previous year and down 57.6% over five years.
New Zealand ranks 30th of 121 countries on this measure, in the top quarter.
Lake water quality trophic state in New Zealand, year by year
| Year | Value | Change |
|---|---|---|
| 2017 | 4.2% | — |
| 2018 | 3.3% | -22.3% |
| 2019 | 1.9% | -42.6% |
| 2020 | 2.3% | +22.8% |
| 2021 | 1.8% | -22.5% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 3.1% | 1.9% | 4.2% | 3 |
| 2020s | 2.0% | 1.8% | 2.3% | 2 |
Countries ranked near New Zealand
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)
- Newsprint — Import quantity, gaps filled 20,301 t (2024)
- Newsprint — Import quantity, annual growth rate -7.97 % change on previous year (2024)
- Newsprint — Import value, gaps filled 17,693 1000 USD (2024)
- Newsprint — Import value, annual growth rate -10.95 % change on previous year (2024)
- Printing and writing papers — Import quantity, annual growth rate -13.17 % change on previous year (2024)
Frequently asked questions
- What is lake water quality trophic state in New Zealand?
- Lake water quality trophic state in New Zealand was 1.8% in 2021, according to United Nations Statistics Division, SDG Global Database.
- What is the highest lake water quality trophic state recorded in New Zealand?
- The highest recorded value was 4.2% in 2017.
- What is the lowest lake water quality trophic state recorded in New Zealand?
- The lowest recorded value was 1.8% in 2021.
- How does New Zealand rank for lake water quality trophic state?
- New Zealand ranks 30th out of 121 countries with data for 2021.
- Where does this New Zealand data come from?
- The figures come from United Nations Statistics Division, SDG Global Database, published as part of Lake water quality trophic state (%). Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 5 observations, free to reuse under UN SDG Global Database (open, attribution requested).