Share of marine territorial waters that are protected in South Korea

South Korea: Share of marine territorial waters that are protected was 2.3% in 2025. ▲ Rising

Latest (2025)
2.3%
Change on year
up 4.5%
World rank
84th
of 174 countries
All-time high
2.5%
in 2020
All-time low
1.0%
in 2013
Years of data
13
2013–2025

Share of marine territorial waters that are protected in South Korea, 2013–2025

00.511.522.52013201920252013: 1 % of territorial waters2014: 1 % of territorial waters2015: 1 % of territorial waters2016: 1.6 % of territorial waters2017: 1.6 % of territorial waters2018: 1.6 % of territorial waters2019: 2.4 % of territorial waters2020: 2.5 % of territorial waters2021: 2.5 % of territorial waters2022: 2.5 % of territorial waters2023: 2.5 % of territorial waters2024: 2.2 % of territorial waters2025: 2.3 % of territorial waters

Source: Protected Planet WDPA and WD-OECM data, UNEP-WCMC and IUCN, via World Bank (2026) – processed by Our World in Data. Measured in % of territorial waters.

Analysis

In 2025, share of marine territorial waters that are protected in South Korea stood at 2.3%.

Compared with earlier readings it is up 4.5% on the previous year and up 130.0% over ten years.

Over the whole period, share of marine territorial waters that are protected in South Korea peaked at 2.5% in 2020 and was at its lowest, 1.0%, in 2013.

South Korea ranks 84th of 174 countries on this measure, in the middle of the range.

The long-run direction has been consistently rising across the 13 years of available data.

Share of marine territorial waters that are protected in South Korea, year by year

Annual values for Share of marine territorial waters that are protected in South Korea, 2013 to 2025.
Year % of territorial waters Change
2013 1.0%
2014 1.0% +0.0%
2015 1.0% +0.0%
2016 1.6% +60.0%
2017 1.6% +0.0%
2018 1.6% +0.0%
2019 2.4% +50.0%
2020 2.5% +4.2%
2021 2.5% +0.0%
2022 2.5% +0.0%
2023 2.5% +0.0%
2024 2.2% -12.0%
2025 2.3% +4.5%

South Korea compared with similar countries

  • South Korea's 2.3% is below the median for high income countries, which is 8.7%, 26% of the median. (75 countries reporting)
  • South Korea's 2.3% is above the median for East Asia & Pacific, which is 0.8%, 2.9× the median. (34 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
2010s 1.5% 1.0% 2.4% 7
2020s 2.4% 2.2% 2.5% 6

Countries ranked near South Korea

  1. 81 Slovenia 2.9% compare
  2. 82 Jordan 2.8% compare
  3. 83 Ireland 2.4% compare
  4. 84 Qatar 2.3% compare
  5. 84 Tanzania 2.3% compare
  6. 87 Russia 2.2% compare

See the full ranking of 174 places →

More reference data data for South Korea

All data for South Korea →

Frequently asked questions

What is share of marine territorial waters that are protected in South Korea?
Share of marine territorial waters that are protected in South Korea was 2.3% in 2025, according to Protected Planet WDPA and WD-OECM data, UNEP-WCMC and IUCN, via World Bank (2026) – processed by Our World in Data.
What is the highest share of marine territorial waters that are protected recorded in South Korea?
The highest recorded value was 2.5% in 2020.
What is the lowest share of marine territorial waters that are protected recorded in South Korea?
The lowest recorded value was 1.0% in 2013.
How does South Korea rank for share of marine territorial waters that are protected?
South Korea ranks 84th out of 174 countries with data for 2025.
Is share of marine territorial waters that are protected rising or falling in South Korea?
Over the last ten years it is up 130.0%. The long-run trend across the full record is rising.
Where does this South Korea data come from?
The figures come from Protected Planet WDPA and WD-OECM data, UNEP-WCMC and IUCN, via World Bank (2026) – processed by Our World in Data, published as part of Share of marine territorial waters that are protected. Statizoid updates them automatically from the source API.

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Share of marine territorial waters that are protected in South Korea. Statizoid, drawing on Protected Planet WDPA and WD-OECM data, UNEP-WCMC and IUCN, via World Bank (2026) – processed by Our World in Data. Retrieved 23 September 2026, from https://reference.statizoid.com/stat/marine-protected-areas/korea-rep/

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About this data

Indicator
Share of marine territorial waters that are protected
Unit
% of territorial waters
Source
Protected Planet WDPA and WD-OECM data, UNEP-WCMC and IUCN, via World Bank (2026) – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
174 places, 2,223 data points, 2013–2025
Last refreshed

Marine protected areas are regions of intertidal or sub-tidal land and associated water, flora and fauna, and cultural and historical features that have been legally or effectively reserved for protection.