Share of the population using improved water sources in South Korea

South Korea: Share of the population using improved water sources was 100.0% in 2024. ▬ Flat

Latest (2024)
100.0%
Change on year
up 0.0%
World rank
1st
of 231 countries
All-time high
100.0%
in 2024
All-time low
98.8%
in 2002
Years of data
23
2002–2024

Share of the population using improved water sources in South Korea, 2002–2024

0204060801002002201320242002: 98.8 %2003: 98.8 %2004: 98.8 %2005: 98.8 %2006: 98.8 %2007: 98.8 %2008: 98.9 %2009: 99 %2010: 99.1 %2011: 99.1 %2012: 99.2 %2013: 99.3 %2014: 99.3 %2015: 99.4 %2016: 99.5 %2017: 99.6 %2018: 99.6 %2019: 99.7 %2020: 99.8 %2021: 99.8 %2022: 99.9 %2023: 100 %2024: 100 %

Source: WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data. Measured in %.

Analysis

In 2024, share of the population using improved water sources in South Korea stood at 100.0%. That is the highest value across all 23 years on record.

The figure is up 0.7% over ten years.

Over the whole period, share of the population using improved water sources in South Korea peaked at 100.0% in 2024 and was at its lowest, 98.8%, in 2002.

That places South Korea 1st out of 231 countries with data for 2024, putting it in the top 10%.

Share of the population using improved water sources in South Korea, year by year

Annual values for Share of the population using improved water sources in South Korea, 2002 to 2024.
Year % Change
2002 98.8% —
2003 98.8% +0.0%
2004 98.8% +0.0%
2005 98.8% +0.0%
2006 98.8% +0.0%
2007 98.8% +0.1%
2008 98.9% +0.1%
2009 99.0% +0.1%
2010 99.1% +0.1%
2011 99.1% +0.1%
2012 99.2% +0.1%
2013 99.3% +0.1%
2014 99.3% +0.1%
2015 99.4% +0.1%
2016 99.5% +0.1%
2017 99.6% +0.1%
2018 99.6% +0.1%
2019 99.7% +0.1%
2020 99.8% +0.1%
2021 99.8% +0.1%
2022 99.9% +0.1%
2023 100.0% +0.1%
2024 100.0% +0.0%

South Korea compared with similar countries

  • South Korea's 100.0% is above the median for high income countries, which is 100.0%, 1.0× the median. (85 countries reporting)
  • South Korea's 100.0% is above the median for East Asia & Pacific, which is 98.8%, 1.0× the median. (37 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
2000s 98.8% 98.8% 99.0% 8
2010s 99.4% 99.1% 99.7% 10
2020s 99.9% 99.8% 100.0% 5

Countries ranked near South Korea

  1. 1 American Samoa 100.0% compare
  2. 1 Andorra 100.0% compare
  3. 1 Austria 100.0% compare
  4. 1 Belgium 100.0% compare
  5. 1 Bermuda 100.0% compare
  6. 1 Bonaire Sint Eustatius and Saba 100.0% compare
  7. 1 Brazil 100.0% compare
  8. 1 Brunei 100.0% compare
  9. 1 Costa Rica 100.0% compare
  10. 1 Curacao 100.0% compare
  11. 1 Denmark 100.0% compare
  12. 1 Estonia 100.0% compare
  13. 1 Faroe Islands 100.0% compare
  14. 1 Finland 100.0% compare
  15. 1 France 100.0% compare
  16. 1 French Polynesia 100.0% compare
  17. 1 Germany 100.0% compare
  18. 1 Gibraltar 100.0% compare
  19. 1 Greece 100.0% compare
  20. 1 Greenland 100.0% compare
  21. 1 Hong Kong 100.0% compare
  22. 1 Hungary 100.0% compare
  23. 1 Iceland 100.0% compare
  24. 1 Isle of Man 100.0% compare
  25. 1 Israel 100.0% compare
  26. 1 Kuwait 100.0% compare
  27. 1 Lebanon 100.0% compare
  28. 1 Liechtenstein 100.0% compare
  29. 1 Luxembourg 100.0% compare
  30. 1 Macao 100.0% compare
  31. 1 Malta 100.0% compare
  32. 1 Monaco 100.0% compare
  33. 1 Netherlands 100.0% compare
  34. 1 New Zealand 100.0% compare
  35. 1 Northern Mariana Islands 100.0% compare
  36. 1 Norway 100.0% compare
  37. 1 Palestine 100.0% compare
  38. 1 Paraguay 100.0% compare
  39. 1 Puerto Rico 100.0% compare
  40. 1 Romania 100.0% compare
  41. 1 Saint Barthelemy 100.0% compare
  42. 1 Singapore 100.0% compare
  43. 1 Slovakia 100.0% compare
  44. 1 Switzerland 100.0% compare
  45. 1 Thailand 100.0% compare
  46. 1 Tokelau 100.0% compare
  47. 1 United Arab Emirates 100.0% compare
  48. 1 United Kingdom 100.0% compare
  49. 1 Uruguay 100.0% compare

See the full ranking of 231 places →

More environment data for South Korea

All data for South Korea →

Frequently asked questions

What is share of the population using improved water sources in South Korea?
Share of the population using improved water sources in South Korea was 100.0% in 2024, according to WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data.
What is the highest share of the population using improved water sources recorded in South Korea?
The highest recorded value was 100.0% in 2024.
What is the lowest share of the population using improved water sources recorded in South Korea?
The lowest recorded value was 98.8% in 2002.
How does South Korea rank for share of the population using improved water sources?
South Korea ranks 1st out of 231 countries with data for 2024.
Is share of the population using improved water sources rising or falling in South Korea?
Over the last ten years it is up 0.7%. The long-run trend across the full record is flat.
Where does this South Korea data come from?
The figures come from WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data, published as part of Share of the population using improved water sources. Statizoid updates them automatically from the source API.

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Share of the population using improved water sources in South Korea. Statizoid, drawing on WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data. Retrieved 12 October 2026, from https://environment.statizoid.com/stat/share-of-the-population-using-improved-water-sources-wash/korea-rep/

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About this data

Indicator
Share of the population using improved water sources
Unit
%
Source
WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
231 places, 5,586 data points, 2000–2024
Last refreshed

Proportion of people who use an improved drinking water source, regardless of collection time. An improved drinking water source is a safely designed drinking water source and includes e.g. piped water, boreholes or tubewells and packaged or delivered water.