Protected area coverage of marine key biodiversity areas in Jersey

Jersey: Protected area coverage of marine key biodiversity areas was 64.1% in 2025. ▬ Flat

Latest (2025)
64.1%
Change on year
unchanged
World rank
61st
of 190 countries
All-time high
64.1%
in 2018
All-time low
63.6%
in 2000
Years of data
26
2000–2025

Protected area coverage of marine key biodiversity areas in Jersey, 2000–2025

02040602000201220252000: 63.6 %2001: 63.6 %2002: 63.6 %2003: 63.6 %2004: 63.6 %2005: 63.6 %2006: 63.6 %2007: 63.6 %2008: 63.6 %2009: 63.6 %2010: 63.6 %2011: 64.1 %2012: 64.1 %2013: 64.1 %2014: 64.1 %2015: 64.1 %2016: 64.1 %2017: 64.1 %2018: 64.1 %2019: 64.1 %2020: 64.1 %2021: 64.1 %2022: 64.1 %2023: 64.1 %2024: 64.1 %2025: 64.1 %

Source: BirdLife International, IUCN and UNEP-WCMC – processed by Our World in Data. Measured in %.

Analysis

In 2025, protected area coverage of marine key biodiversity areas in Jersey stood at 64.1%. That is the highest value across all 26 years on record.

Compared with earlier readings it is up 0.0% over ten years.

Over the whole period, protected area coverage of marine key biodiversity areas in Jersey peaked at 64.1% in 2018 and was at its lowest, 63.6%, in 2000.

Jersey ranks 61st of 190 countries on this measure, in the middle of the range.

Protected area coverage of marine key biodiversity areas in Jersey, year by year

Annual values for Protected area coverage of marine key biodiversity areas in Jersey, 2000 to 2025.
Year % Change
2000 63.6% —
2001 63.6% +0.0%
2002 63.6% +0.0%
2003 63.6% +0.0%
2004 63.6% +0.0%
2005 63.6% +0.0%
2006 63.6% +0.0%
2007 63.6% +0.0%
2008 63.6% +0.0%
2009 63.6% +0.0%
2010 63.6% +0.0%
2011 64.1% +0.8%
2012 64.1% +0.0%
2013 64.1% +0.0%
2014 64.1% +0.0%
2015 64.1% +0.0%
2016 64.1% +0.0%
2017 64.1% +0.0%
2018 64.1% +0.0%
2019 64.1% +0.0%
2020 64.1% +0.0%
2021 64.1% +0.0%
2022 64.1% +0.0%
2023 64.1% +0.0%
2024 64.1% +0.0%
2025 64.1% +0.0%

Averages by decade

DecadeAverage LowestHighest Years
2000s 63.6% 63.6% 63.6% 10
2010s 64.0% 63.6% 64.1% 10
2020s 64.1% 64.1% 64.1% 6

Countries ranked near Jersey

  1. 58 Australia 66.2% compare
  2. 59 Angola 65.9% compare
  3. 60 Mexico 64.3% compare
  4. 62 Christmas Island 63.0% compare
  5. 63 South Africa 63.0% compare
  6. 64 Slovenia 62.2% compare

See the full ranking of 190 places →

More environment data for Jersey

All data for Jersey →

Frequently asked questions

What is protected area coverage of marine key biodiversity areas in Jersey?
Protected area coverage of marine key biodiversity areas in Jersey was 64.1% in 2025, according to BirdLife International, IUCN and UNEP-WCMC – processed by Our World in Data.
What is the highest protected area coverage of marine key biodiversity areas recorded in Jersey?
The highest recorded value was 64.1% in 2018.
What is the lowest protected area coverage of marine key biodiversity areas recorded in Jersey?
The lowest recorded value was 63.6% in 2000.
How does Jersey rank for protected area coverage of marine key biodiversity areas?
Jersey ranks 61st out of 190 countries with data for 2025.
Is protected area coverage of marine key biodiversity areas rising or falling in Jersey?
Over the last ten years it is up 0.0%. The long-run trend across the full record is flat.
Where does this Jersey data come from?
The figures come from BirdLife International, IUCN and UNEP-WCMC – processed by Our World in Data, published as part of Protected area coverage of marine key biodiversity areas. Statizoid updates them automatically from the source API.

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Protected area coverage of marine key biodiversity areas in Jersey. Statizoid, drawing on BirdLife International, IUCN and UNEP-WCMC – processed by Our World in Data. Retrieved 02 October 2026, from https://environment.statizoid.com/stat/protected-area-coverage-of-marine-key-biodiversity-areas/jersey/

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About this data

Indicator
Protected area coverage of marine key biodiversity areas
Unit
%
Source
BirdLife International, IUCN and UNEP-WCMC – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
190 places, 4,940 data points, 2000–2025
Last refreshed

Average proportion of Marine Key Biodiversity Areas (KBAs) covered by protected areas (%).