In 2025, the total population of South Korea is projected to be around ***** million. In thirty years, the number of people aged 15 to 64 is estimated to decrease by one-third, while the number of older adults is anticipated to more than double. Additionally, the overall population is expected to decline by around *** million people by that time. Declining birth rate Several factors are contributing to the expected demographic changes in South Korea. Firstly, the birth rate has been declining for years. As of 2024, South Korea had the lowest fertility rate in the world. This trend continues despite the efforts of successive governments to encourage young people to have children. An increasing number of South Korean women are prioritizing their careers, often choosing to focus on work rather than starting a family at a young age. While the employment rate for South Korean women is still lower than that of men, it has steadily risen over the past decade. Increase in life expectancy Secondly, life expectancy in South Korea has steadily increased due to improved living standards and healthcare. The average life expectancy at birth for South Koreans has risen from less than 75 years to almost 83 years over the past twenty years. As a result, the proportion of people aged 65 and older has grown from less than ** percent to around ** percent in the last decade.

Total current population for South Korea in 2025 is 51,690,479, a 0.1% decline from 2024.

<ul style='margin-top:20px;'>

<li>Total population for South Korea in 2024 was <strong>51,741,963</strong>, a <strong>0.08% decline</strong> from 2023.</li>
<li>Total population for South Korea in 2023 was <strong>51,784,059</strong>, a <strong>0.06% decline</strong> from 2022.</li>
<li>Total population for South Korea in 2022 was <strong>51,815,810</strong>, a <strong>0.03% decline</strong> from 2021.</li>
</ul>Total population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship. The values shown are midyear estimates.

South Korea population growth rate for 2023 was 0.08%, a 0.26% increase from 2022.

<ul style='margin-top:20px;'>

<li>South Korea population growth rate for 2022 was <strong>-0.19%</strong>, a <strong>0.06% decline</strong> from 2021.</li>
<li>South Korea population growth rate for 2021 was <strong>-0.13%</strong>, a <strong>0.27% decline</strong> from 2020.</li>
<li>South Korea population growth rate for 2020 was <strong>0.14%</strong>, a <strong>0.21% decline</strong> from 2019.</li>
</ul>Annual population growth rate for year t is the exponential rate of growth of midyear population from year t-1 to t, expressed as a percentage . Population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship.

In 1900, the crude birth rate in South Korea was just under 42 births for every thousand people, meaning that approximately 4.2 percent of the population was born in that year. The crude birth rate would rise briefly in the 1930s, as Japanese investment would lead to economic growth on the peninsula, but would fall sharply in the 1940s, as the Second World War and the Korean War would result in two decades of significant socio-economic turmoil. While the crude birth rate would recover quickly after the end of the Korean War in 1953, a sharp decline in fertility beginning in the 1960s would see a corresponding fall in the crude birth rate lasting until the late 1980s, as South Korea would go through a rapid demographic transition and modernization. While the crude birth rate would briefly rise in the early 1990s, partially due to governmental restrictions on sex-selective abortion; the rate of decline would slow going into the 21st century. As a result, in 2020, it is estimated that South Korea has a birth rate of seven births for every thousand people, which is one of the lowest birth rates in the world.

South Korea fertility rate for 2025 is 1.08, a 0.37% increase from 2024.

<ul style='margin-top:20px;'>

<li>South Korea fertility rate for 2024 was <strong>1.08</strong>, a <strong>49.65% increase</strong> from 2023.</li>
<li>South Korea fertility rate for 2023 was <strong>0.72</strong>, a <strong>7.33% decline</strong> from 2022.</li>
<li>South Korea fertility rate for 2022 was <strong>0.78</strong>, a <strong>3.71% decline</strong> from 2021.</li>
</ul>Total fertility rate represents the number of children that would be born to a woman if she were to live to the end of her childbearing years and bear children in accordance with age-specific fertility rates of the specified year.

South Korea rural population for 2023 was 9,589,588, a 0.08% decline from 2022.

<ul style='margin-top:20px;'>

<li>South Korea rural population for 2022 was <strong>9,597,146</strong>, a <strong>0.26% decline</strong> from 2021.</li>
<li>South Korea rural population for 2021 was <strong>9,621,887</strong>, a <strong>0.13% decline</strong> from 2020.</li>
<li>South Korea rural population for 2020 was <strong>9,634,283</strong>, a <strong>0.22% increase</strong> from 2019.</li>
</ul>Rural population refers to people living in rural areas as defined by national statistical offices. It is calculated as the difference between total population and urban population. Aggregation of urban and rural population may not add up to total population because of different country coverages.

South Korea population density for 2022 was 529.43, a 0.19% decline from 2021.

<ul style='margin-top:20px;'>

<li>South Korea population density for 2021 was <strong>530.43</strong>, a <strong>0.13% decline</strong> from 2020.</li>
<li>South Korea population density for 2020 was <strong>531.11</strong>, a <strong>0.14% increase</strong> from 2019.</li>
<li>South Korea population density for 2019 was <strong>530.38</strong>, a <strong>0.27% increase</strong> from 2018.</li>
</ul>Population density is midyear population divided by land area in square kilometers. Population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship--except for refugees not permanently settled in the country of asylum, who are generally considered part of the population of their country of origin. Land area is a country's total area, excluding area under inland water bodies, national claims to continental shelf, and exclusive economic zones. In most cases the definition of inland water bodies includes major rivers and lakes.

In 2025, South Korea's male population is projected to reach about 25.84 million, while the female population is estimated at 25.85 million. In the long term, South Korea's population is expected to decline, reaching about 36.22 million in 2072.

In 2023, the number of births in South Korea stood at 230,028, recording the lowest figure during the given period. Around two decades earlier, this number was twice as high. Declining fertility in South Korea A phenomenon that most East Asian countries and territories grapple with is a stark decline in fertility rates. This is especially evident in South Korea, which has the lowest fertility rate in the world, far below the 2.1 children per woman threshold that represents replacement fertility. In response to the expected economic consequences of a declining population, South Korea has implemented various initiatives to encourage married couples to have children. Factors contributing to low birth rates in South Korea One major element is the societal change in attitudes toward childbirth. In a survey, half of South Korean respondents asserted that marriages can be happy without children, and a sizeable share also stated that having children was dependent on economic factors. In addition, an increasing number of South Koreans are choosing not to get married – In 2023, South Korea recorded one of the lowest numbers of marriages in its history. Furthermore, there has been a growing trend among South Korean women to prioritize their financial independence and career continuity over traditional childbearing expectations.

In 1900, the fertility rate in the region of present-day South Korea was six children per woman, meaning that the average woman born in South Korea in that year could expect to have six children over the course of their reproductive years. This number began to fluctuate in the 1930s, when the Japanese administration (the Korean peninsula had been annexed by Japan in 1910) promoted fertility as part of the war effort, before fertility dropped below 5.2 births per woman in the aftermath of the war. It then increased above 6.3 in the 1950s due to the devastation and mass-displacement caused by the Korean War. As stability returned to the region, South Korea's fertility rate would fall sharply throughout the remainder of the century, as modernization, urbanization, and the implementation of family planning programs would see fertility fall to just over 1.5 children per woman by 1990.

Sex-selective abortion and gender ratios Abortion was illegal in South Korea between 1953 and 2020, although it was permitted in some cases from 1973 onward. Despite this, these laws were rarely enforced, and sex-selective abortion became widespread following advancements in ultrasound technology. In many Asian societies, it was often preferred to have male children as they were viewed as being better long-term providers for their parents and they would carry on the family name. In South Korea in the early 1990s, the practice of sex-selective abortion became so widespread that the gender ratio at birth was 114 males for every 100 females (reportedly as high as 125 in some cities), compared to the historical and natural average of approximately 105 males per 100 females. The government then prohibited doctors from revealing the gender of unborn babies to the parents in 1987, and introduced more severe penalties in 1994, in an attempt to revert this trend. The gender imbalance then reduced in the following decades, and has been at 106 males per 100 females since the 2010s (roughly the natural average). Abortion rights in South Korea were expanded in 2021.

Lowest in the world? Despite government initiatives aimed at increasing fertility, including financial incentives, South Korea's fertility rate has continued to fall in recent years, and today is at around half of replacement level. In 2020, it is estimated that the average woman born in South Korea will have just over one child over the course of their reproductive years. Some critics cite economic factors, such as high education and housing costs, for the reason that young couples are postponing marriage and having families; today, South Korea has the lowest adolescent fertility rate, and the lowest overall fertility rate in the Asia Pacific region. Due to the current trajectory of South Korea's fertility rate, in January 2021, it was announced that the South Korean population experienced a natural decline for the first time in it's history.

In 2023, the number of births in South Korea stood at 230,028, recording the lowest figure during the given period. Around two decades earlier, this number was twice as high. Declining fertility in South Korea A phenomenon that most East Asian countries and territories grapple with is a stark decline in fertility rates. This is especially evident in South Korea, which has the lowest fertility rate in the world, far below the 2.1 children per woman threshold that represents replacement fertility. In response to the expected economic consequences of a declining population, South Korea has implemented various initiatives to encourage married couples to have children. Factors contributing to low birth rates in South Korea One major element is the societal change in attitudes toward childbirth. In a survey, half of South Korean respondents asserted that marriages can be happy without children, and a sizeable share also stated that having children was dependent on economic factors. In addition, an increasing number of South Koreans are choosing not to get married – In 2023, South Korea recorded one of the lowest numbers of marriages in its history. Furthermore, there has been a growing trend among South Korean women to prioritize their financial independence and career continuity over traditional childbearing expectations.

Population declines in terrestrial bird species have been reported across temperate regions in the world and are attributed to habitat loss, climate change, or other direct mortality sources. North American and European studies indicate that long-distance migrants, common species, and species associated with grasslands and agricultural lands are declining at the greatest rates. However, data from East Asia on avian population trends and associated drivers are extremely sparse. We modeled changes in occupancy of 52 common breeding landbird species in South Korea between 1997–2005 and 2013–2019. Thirty-eight percent of the species showed evidence of declines, and seven of these were declining severely (46–95%). Occupancy of Black-capped Kingfisher (Halcyon pileata) populations have dropped the most precipitously over the study period. Among declining species, long-distance migrants (9/20) and common species (14/20) showed more rapid declines than other groups. Declines of five species were associated with climate change, and two species appeared to be affected by land-cover change. However, causes of change in occupancy of other species (46/52) remains cryptic. Based on our results, we suggest an immediate re-evaluation of species’ conservation status and legal protection levels for seven severely declining species in South Korea, and a dedicated survey design and analysis effort for the continued monitoring landbird populations. Because many species exhibiting declines migrate from beyond national boundaries, international collaborations will be required to better quantify population trends across the full annual cycle, and to understand mechanisms for these declines.

Rural population (% of total population) in South Korea was reported at 18.54 % in 2023, according to the World Bank collection of development indicators, compiled from officially recognized sources. South Korea - Rural population - actual values, historical data, forecasts and projections were sourced from the World Bank on June of 2025.

North Korea: Population growth, percent: The latest value from 2023 is 0.35 percent, a decline from 0.37 percent in 2022. In comparison, the world average is 1.15 percent, based on data from 196 countries. Historically, the average for North Korea from 1961 to 2023 is 1.28 percent. The minimum value, 0.35 percent, was reached in 2023 while the maximum of 2.82 percent was recorded in 1968.

In 2021, the school-age population in South Korea comprises 7.64 million people. This is a sharp decline from the 1980 population of 14.4 million. It is expected that this trend of decline will continue, with projection of the 2060 school-age population comprising of only 4.19 million people.

We aimed to investigate the relationship between pesticide exposure and cognitive decline in a rural South Korean population. From July 2015 to December 2017, 200 randomly selected Korean Farmers Cohort study participants were recruited and of these, 169 participants were analyzed. Pesticide exposure was investigated using a standardized questionnaire, and the Korean-Montreal Cognitive Assessment (K-MoCA) was conducted. Cognitive decline was more frequent among those directly exposed to pesticides (P = 0.057). Pesticide exposure and cognitive decline were positively correlated in the group with direct exposure versus no exposure (crude odds ratio [OR], 2.66; 95% confidence interval [CI], 1.17–6.04); this relationship was insignificant after adjustment (adjusted OR, 1.50; 95% CI, 0.57–3.92). There was a significant difference in the K-MoCA scores for each group based on pesticide exposure (P = 0.003). When we stratified by age, differences in the K-MoCA scores depending on the degree of pesticide exposure in the those aged 60 to 69 years were identified. Overall, there was a tendency towards an association between pesticide exposure and cognitive decline in rural Korean adult farmers. In our study, chronic pesticide exposure tended to have a greater impact in certain age group (60–69 years) than in those under 60 and over 70.

In 2021, there were 11.6 births per 1,000 people in Northern Ireland, compared with eleven in the previous year. Between 2000 and 2008, Northern Ireland's birth rate increased from 12.8 to 14.4 but started to decline gradually until 2012 when it dropped from 13.9 to 13.3 in just one year. During this provided time period, the birth rate in Northern Ireland was highest in 1971, when it was 20.6 and was at its lowest in 2020 when there were just eleven births per 1,000 people. Falling birth rates in the UK For the United Kingdom as a whole, the birth rate fell to 10.2 births per 1,000 people in 2020, before a slight uptick to 10.4 in 2021. After a postwar peak of 18.8 births per 1,000 people in 1964, the UK birth rate fell sharply to just 11.7 by 1977. Between 1977 and 2012 the birth rate fluctuated between 11.3 and 13.9, but declined in every year between 2012 and 2020. In 2021, the UK's fertility rate (the number of births per women) fell to just 1.53, compared with 2.95 in 1964. Since 1973, the UK has fallen below the minimum replacement level fertility rate of 2.1, and without immigration would likely see its population decline in the long term. Global demographic trends The considerable decline in the UK's fertility rate in recent decades is not an isolated phenomenon. As of 2024, Africa was, at 4.12, the only continent to have a fertility rate higher than the global average of 2.31. Several countries, mainly in East Asia and Europe, have far lower fertility rates than the UK or the global average, however. South Korea provides the most dramatic example of this trend, with its fertility rate falling from 6.33 in 1960 to just 1.11 by 2020. By the 2080s, it is expected that, as Africa's fertility rate converges with the rest of the world, the global population will peak at around 10.4 billion and start to decline.

South Korea net migration for 2024 was 75,963, a 13.48% decline from 2023.

<ul style='margin-top:20px;'>

<li>South Korea net migration for 2023 was <strong>87,800</strong>, a <strong>0% increase</strong> from 2022.</li>
<li>South Korea net migration for 2022 was <strong>87,800</strong>, a <strong>623.3% decline</strong> from 2021.</li>
<li>South Korea net migration for 2021 was <strong>-16,778.00</strong>, a <strong>114.9% decline</strong> from 2020.</li>
</ul>Net migration is the net total of migrants during the period, that is, the total number of immigrants less the annual number of emigrants, including both citizens and noncitizens. Data are five-year estimates.

In 2024, the number of marriages in South Korea reached *******. The trend of shunning marriage has been particularly noticeable in recent years, with the number of marriages drastically decreasing by over ** percent compared to ten years ago. Changing perceptions of marriage An increasing number of people in South Korea, particularly women, are choosing not to get married. According to a survey, only around ** percent of women saw marriage as a necessity, compared to almost ** percent of men. The most common reasons for not getting married were lacking financial resources and simply not seeing the need for it. Demographic challenges With more people remaining single and not having children, the birth rate in South Korea has dropped to the lowest in the world, reaching a record low of **** births per woman in 2023. The government has tried to tackle the problem of population decline and aging through various measures, but so far, with little success.

As of 2024, more than four million South Koreans were aged 75 or older. The total number of elderly is expected to more than double between 2020 and 2072. The demographics of South Korea are expected to change significantly in the coming years. Thirty years from now, the number of children and people aged 15 to 64 is estimated to drop by a third, while the number of older people is believed to double. Meanwhile, the total population is expected to drop by more than four million people by this time.