The table below shows the countries that have been affected by population decline between 2010 and 2020. The term "population" used here 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 the country of origin. This means that population growth in this table includes net changes from immigration and emigration. For a table of natural population changes, see the
list of countries by natural increase.
East Asia China China's population peaked at 1.43 billion in 2021 and began declining in 2022. China recorded more deaths than births for the first time in 2022 with a net decrease of 850,000 and this trend continued in 2023 when deaths overnumbered births by a margin of more than 1 million and in 2024 with deaths overnumbering births by 1.4 million. The Population Division of the
United Nations Department of Economic and Social Affairs, assuming that China's total fertility rate will rise from 1.0 in 2023 to 1.35 by 2100, projects its population to fall to 639 million by 2100, a decline of about 54%. the 2010 census result figure was slightly higher, at just above 128 million, than the 2005 census. Factors implicated in the puzzling figures were more Japanese returnees than expected as well as changes in the methodology of data collection. However, the official count put the population as of October 1, 2015, at 127.1 million, down by 947,000 or 0.7% from the previous quinquennial census. The gender ratio is increasingly skewed; some 106 women per 100 men live in Japan. In 2019, Japan's population fell by a record-breaking 276,000; if immigration is excluded from the figures, the drop would have been 487,000. Given the population boom of the 1950s and 1960s, the total population is still 52% above 1950 levels. The UN's Population Division, assuming that South Korea's total fertility rate will rise from 0.72 in 2023 to 1.3 by 2100, projects its population to fall to nearly 22 million by 2100, a decline of about 58%. thus starting an era of demographic decline for the foreseeable future. Taiwan's population fell from 23.6 million in 2020 to 23.4 in 2023, while the total fertility rate decreased from 1.05 in 2020 to 0.85 in 2023. The UN's Population Division, assuming that Taiwan's total fertility rate will rise from 0.87 in 2023 to 1.33 by 2100, projects its population to fall to 10 million by 2100, a decline of about 57%. and high rates of infectious diseases such as
AIDS and
TB), as well as high emigration rates. In Russia and the former communist bloc,
birth rates fell abruptly after the
dissolution of the Soviet Union, and death rates generally rose sharply. In addition, in the 25 years after 1989, some 20 million people from Eastern Europe are estimated to have migrated to Western Europe or the United States.
Belarus Belarus's population peaked at 10,151,806 in the 1989 Census and declined to 9,480,868 as of 2015 as estimated by the state statistical service. This represents a 7.1% decline since the peak census figure.
Estonia In the last Soviet census of 1989, it had a population of 1,565,662, which was close to its peak population. The state statistics reported an estimate of 1,314,370 for 2016. The state statistics reported an estimate of 4,010,000 for the 2014 Census, which includes estimated numbers for quasi-independent
Abkhazia and
South Ossetia. The latest census recorded a population of 2,067,887 in 2011, while the state statistics reported an estimate of 1,986,086 for 2015.
Lithuania When Lithuania split from the Soviet Union, it had a population of 3.7 million, which was close to its peak population. The latest census recorded a population of 3.05 million in 2011, down from 3.4 million in 2001, This represents a 23.8% decline since the peak census figure, and some 13.7% since 2001.
Ukraine entering Romania, 5 March 2022 The Ukrainian census in 1989 resulted in 51,452,034 people. Ukraine's own estimates show a peak of 52,244,000 people in 1993; however, this number has plummeted to 45,439,822 as of December 1, 2013. Having
lost Crimean territory to Russia in early 2014 and subsequently experiencing war, the population dropped to 42,981,850 as of August 2014. This represents a 19.7% decrease in total population since the peak figure, but 16.8% above the 1950 population even without Crimea. Its absolute total decline (9,263,000) since its peak population is the highest of all nations; this includes loss of territory and heavy net emigration. Eastern Ukraine may yet lose many Russian-speaking citizens due to the new Russian citizenship law. An editorial projects significant gender and age imbalance in the population in Ukraine as a substantial problem if most refugees, as in other cases, do not return over time. Approximately 3.8 million more people have left the country during the
2022 Russian invasion of Ukraine, and thousands have died in the conflict. The
2022 Russian invasion of Ukraine considerably deepened the country's demographic crisis. The
birth rate in Ukraine was 28% lower in the first six months of 2023 compared to the same period in 2021. A July 2023 study by the
Vienna Institute for International Economic Studies stated that "[r]egardless of how long the war lasts and whether or not there is further military escalation, Ukraine is unlikely to recover demographically from the consequences of the war. Even in 2040 it will have only about 35 million inhabitants, around 20% fewer than before the war (2021: 42.8 million) and the decline in the working-age population is likely to be the most severe and far-reaching."
Hungary Hungary's population peaked in 1980, at 10,709,000, and has continued its decline to under 10 million as of August 2010. This represents a decline of 7.1% since its peak; however, compared to neighbors situated to the East, Hungary peaked almost a decade earlier yet the rate has been far more modest, averaging −0.23% a year over the period.
Balkans Albania Albania's population in 1989 recorded 3,182,417 people, the largest for any census. Since then, its population declined to an estimated 2,893,005 in January 2015. The decline has since accelerated with a 1.3% drop in population reported in 2021 leaving a total population of 2.79 million. This represents a decrease of 12% in total population since the peak census figure.
Bosnia and Herzegovina Bosnia and Herzegovina's population peaked at 4,377,033 in the 1991 Census, shortly before the
Yugoslav wars that produced tens of thousands of civilian victims and refugees. The latest census of 2016 reported a population of 3,511,372. This represents a 19.8% decline since the peak census figure.
Bulgaria Bulgaria's population declined from a peak of 9,009,018 in 1989 and since 2001, has lost yet another 600,000 people, according to 2011 census preliminary figures to no more than 7.3 million, further down to 7,245,000. This represents a 24.3% decrease in total population since the peak and a −0.82% annual rate in the last 10 years. The Bulgarian population has fallen by more than 844,000 people, or 11.5 percent, in the last decade, the National Institute of Statistics in Sofia said during a presentation of the results so far of the 2021 census, the first since 2011. The country currently employs just over 6.5 million people, compared to 7.3 million in the previous workforce.
Croatia Croatia's population declined from 4,784,265
in 1991 to 4,456,096 (by the old statistical method) of which 4,284,889 are permanent residents (by the new statistical method), in 2011, a decline of 8% (11.5% by the new definition of permanent residency in 2011 census). The main reasons for the decline since 1991 are: low birth rates, emigration and
war in Croatia. From 2001 and 2011 main reason for the drop in population is due to a difference in the definition of permanent residency used in censuses till 2001 (censuses of 1948, 1953, 1961, 1971, 1981, 1991 and 2001) and the one used in 2011. By 2021 the population dropped to 3,888,529, a 9.25% decrease from 2011 numbers.
Greece Greece's population declined by about half a million people between its 2011 and 2021 censuses. The main drivers are increased emigration rates and lower birth rates following the
2008 financial crisis.
Romania Romania's 1991 census showed 23,185,084 people, and the October 2011 census recorded 20,121,641 people, while the state statistical estimate for 2014 is 19,947,311. This represents a decrease of 16.2% since the historical peak in 1991.
Serbia Serbia recorded a peak census population of 7,822,795 in 1991 in the Yugoslav era, falling to 7,186,862 in the 2011 census. That represents a decline of 5.1% since its peak census figure.
Other Italy Although Italy had recorded more deaths than births continuously since 1993, the country's population only peaked in 2015 at 60,796,000 due to substantial immigration. The Italian population fell by a record amount in 2020, and in 2021, it recorded the lowest number of births since its unification in 1861 at only 399,431, with its population being projected to shrink to 47.2 million in 2070, a decline of nearly 20 percent. As of April 2024, Italian population stands at 58,968,501 inhabitants. The UN's Population Division, assuming that Italy's total fertility rate will rise from 1.2 in 2024 to 1.5 by 2100, projects its population to be 35.5 million by 2100, a decline of about 40%. Uruguay recorded more deaths than births for the first time in 2021 and the population decline has been only offset slightly by immigration.
Venezuela In spite of a positive
natural increase of almost 1% per year, ==Resumed declines==