Population (Total) in South Korea

Source: World Bank, United Nations (World Population Prospects, The 2019 Revision, Medium-Fertility Assumption), World Bank
Last Updated: November 3, 2025

Total population reached 21.8 mil in 2100 in South Korea, according to the National Statistical Office. This is 1.44% less than in the previous year.

Historically, total population in South Korea reached an all time high of 51.9 mil in 2020 and an all time low of 9.40 mil in 1820.

South Korea has been ranked 83rd within the group of 250 countries we follow in terms of total population.

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