How many years of comparable data are there for Korea and Northern Mariana Islands?

23 years are reported by both, from 2002 to 2024.

Where does this data come from?

WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data, published as People using improved drinking water sources. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Korea vs Northern Mariana Islands: People using improved drinking water sources

Korea

0 people

in 2024

Northern Mariana Islands

0 people

in 2024

Korea rank

193rd

Northern Mariana Islands rank

193rd

People using improved drinking water sources over time

Korea
Northern Mariana Islands

How they compare

Korea currently reports 0 people against 0 people in Northern Mariana Islands, a difference of 0 people.

The two have swapped places 1 time across 23 shared years of data; in 2002 it was Korea ahead.

Korea ranks 193rd and Northern Mariana Islands ranks 193rd of 231 countries.

Korea has averaged higher in every one of the 3 decades both report.

Head to head by decade

Decade	Korea	Northern Mariana Islands	Difference	Ahead
2000s	565,715 people	1,534 people	564,180 people	Korea
2010s	314,841 people	412.35 people	314,429 people	Korea
2020s	52,740 people	0 people	52,740 people	Korea

Averages of every year both report within each decade.

Frequently asked questions

Which has higher people using improved drinking water sources, Korea or Northern Mariana Islands?: Korea, at 0 people against 0 people in Northern Mariana Islands as of 2024.
What is the difference in people using improved drinking water sources between Korea and Northern Mariana Islands?: 0 people, with Korea ahead.
How many years of comparable data are there for Korea and Northern Mariana Islands?: 23 years are reported by both, from 2002 to 2024.
How do Korea and Northern Mariana Islands rank globally for people using improved drinking water sources?: Korea ranks 193rd and Northern Mariana Islands ranks 193rd of 231 countries.
Where does this data come from?: WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data, published as People using improved drinking water sources. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Korea vs Northern Mariana Islands: People using improved drinking water sources. Statizoid, drawing on WHO/UNICEF Joint Monitoring Programme for Water Supply, Sanitation and Hygiene (2025) – processed by Our World in Data. Retrieved 13 September 2026, from https://environment.statizoid.com/compare/number-of-people-in-the-world-with-and-without-access-to-improved-water-sources/korea-rep/northern-mariana-islands/

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<a href="https://environment.statizoid.com/compare/number-of-people-in-the-world-with-and-without-access-to-improved-water-sources/korea-rep/northern-mariana-islands/">Korea vs Northern Mariana Islands: People using improved drinking water sources</a> — Statizoid

About this data

Indicator: People using improved drinking water sources
Unit: people
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: 28 August 2026

Number of people using only unimproved drinking water sources.