The latest officially reported population of Japan was 123,975,371 in 2024 vs 3,524,788 people in Mongolia in 2024. In 2025, based on the adjusted UN estimation, the current Japan's population is 123,324,642 people compared to 3,599,274 in Mongolia.
Population statistics:
- Japan's population is 34.3 times bigger than Mongolia's.
- Japan is ranked the 12th most populous country in the world, while Mongolia is the 132nd.
- The countries together account for 1.54% of the world: 1.49% for Japan vs 0.04% for Mongolia.
- For the last 10 years, Japan has had an average growth rate of -0.25% per year vs +1.79% in Mongolia.
- Since 2005, the population of Japan has decreased from 128M people to 123M (3.48% decline), while Mongolia has grown from 2.54M to 3.6M (41.9% growth).
- Mongolia is projected to reach its peak in 2100 at 5.6M people, while Japan's population already peaked in 2010 at 128M people and is projected to decrease to 77M people by 2100.
Japan vs Mongolia: live population counter
Japan
|
Mongolia
|
|
|---|---|---|
| Current population |
123324642
|
3599274
|
| Population rank | 12/197 | 132/197 |
| Percent of world population | 1.49% | 0.04% |
| One net population change |
58.3 seconds
|
12 minutes
|
| One birth every |
42.2 seconds
|
7.95 minutes
|
| One death every |
19.5 seconds
|
27.5 minutes
|
| One migration net change every |
3.43 minutes
|
4.4 days
|
| Annual migration change | +153,357 | +83 |
| Daily growth/decline | -1,483 | +120 |
| Annual growth/decline | -541,279 | +43,643 |
| Annual growth/decline rate | -0.43% | +1.25% |
| Population growth rate rank | 182/197 | 88/197 |
Japan and Mongolia: population history and growth rate by year chart
Japan
Population
Growth rate
Mongolia
Population
Growth rate
| Year | Population | Growth rate | ||
|---|---|---|---|---|
|
Japan
|
Mongolia
|
Japan
|
Mongolia
|
|
| 1960 | 93,216,000 | 977,595 | - | - |
| 1961 | 94,055,000 | 1,009,284 | 0.9% | 3.24% |
| 1962 | 94,933,000 | 1,041,444 | 0.93% | 3.19% |
| 1963 | 95,900,000 | 1,071,362 | 1.02% | 2.87% |
| 1964 | 96,903,000 | 1,100,234 | 1.05% | 2.69% |
| 1965 | 97,952,000 | 1,131,177 | 1.08% | 2.81% |
| 1966 | 98,851,000 | 1,163,754 | 0.92% | 2.88% |
| 1967 | 99,879,000 | 1,196,996 | 1.04% | 2.86% |
| 1968 | 101,011,000 | 1,229,930 | 1.13% | 2.75% |
| 1969 | 102,219,000 | 1,262,284 | 1.2% | 2.63% |
| 1970 | 103,403,000 | 1,295,272 | 1.16% | 2.61% |
| 1971 | 105,697,000 | 1,330,071 | 2.22% | 2.69% |
| 1972 | 107,188,000 | 1,366,821 | 1.41% | 2.76% |
| 1973 | 108,707,000 | 1,405,502 | 1.42% | 2.83% |
| 1974 | 110,162,000 | 1,446,050 | 1.34% | 2.88% |
| 1975 | 111,573,000 | 1,488,296 | 1.28% | 2.92% |
| 1976 | 112,775,000 | 1,531,945 | 1.08% | 2.93% |
| 1977 | 113,872,000 | 1,576,245 | 0.97% | 2.89% |
| 1978 | 114,913,000 | 1,619,468 | 0.91% | 2.74% |
| 1979 | 115,890,000 | 1,660,659 | 0.85% | 2.54% |
| 1980 | 116,807,000 | 1,701,335 | 0.79% | 2.45% |
| 1981 | 117,661,000 | 1,742,857 | 0.73% | 2.44% |
| 1982 | 118,480,000 | 1,785,364 | 0.7% | 2.44% |
| 1983 | 119,307,000 | 1,829,092 | 0.7% | 2.45% |
| 1984 | 120,083,000 | 1,874,349 | 0.65% | 2.47% |
| 1985 | 120,837,000 | 1,921,514 | 0.63% | 2.52% |
| 1986 | 121,482,000 | 1,970,965 | 0.53% | 2.57% |
| 1987 | 122,069,000 | 2,022,800 | 0.48% | 2.63% |
| 1988 | 122,578,000 | 2,076,322 | 0.42% | 2.65% |
| 1989 | 123,069,000 | 2,124,185 | 0.4% | 2.31% |
| 1990 | 123,478,000 | 2,098,710 | 0.33% | -1.2% |
| 1991 | 123,964,000 | 2,165,342 | 0.39% | 3.17% |
| 1992 | 124,425,000 | 2,167,790 | 0.37% | 0.11% |
| 1993 | 124,829,000 | 2,165,130 | 0.32% | -0.12% |
| 1994 | 125,178,000 | 2,189,395 | 0.28% | 1.12% |
| 1995 | 125,472,000 | 2,224,945 | 0.23% | 1.62% |
| 1996 | 125,757,000 | 2,259,507 | 0.23% | 1.55% |
| 1997 | 126,057,000 | 2,291,750 | 0.24% | 1.43% |
| 1998 | 126,400,000 | 2,323,809 | 0.27% | 1.4% |
| 1999 | 126,631,000 | 2,356,813 | 0.18% | 1.42% |
| 2000 | 126,843,000 | 2,388,299 | 0.17% | 1.34% |
| 2001 | 127,149,000 | 2,417,751 | 0.24% | 1.23% |
| 2002 | 127,445,000 | 2,449,027 | 0.23% | 1.29% |
| 2003 | 127,718,000 | 2,480,374 | 0.21% | 1.28% |
| 2004 | 127,761,000 | 2,508,412 | 0.03% | 1.13% |
| 2005 | 127,773,000 | 2,536,407 | 0.009% | 1.12% |
| 2006 | 127,854,000 | 2,567,168 | 0.06% | 1.21% |
| 2007 | 128,001,000 | 2,601,850 | 0.11% | 1.35% |
| 2008 | 128,063,000 | 2,643,201 | 0.05% | 1.59% |
| 2009 | 128,047,000 | 2,691,115 | -0.01% | 1.81% |
| 2010 | 128,070,000 | 2,738,622 | 0.02% | 1.77% |
| 2011 | 127,833,000 | 2,786,317 | -0.19% | 1.74% |
| 2012 | 127,629,000 | 2,839,705 | -0.16% | 1.92% |
| 2013 | 127,445,000 | 2,899,011 | -0.14% | 2.09% |
| 2014 | 127,276,000 | 2,963,113 | -0.13% | 2.21% |
| 2015 | 127,141,000 | 3,026,864 | -0.11% | 2.15% |
| 2016 | 127,076,000 | 3,088,856 | -0.05% | 2.05% |
| 2017 | 126,972,000 | 3,148,917 | -0.08% | 1.94% |
| 2018 | 126,811,000 | 3,208,189 | -0.13% | 1.88% |
| 2019 | 126,633,000 | 3,267,673 | -0.14% | 1.85% |
| 2020 | 126,261,000 | 3,327,204 | -0.29% | 1.82% |
| 2021 | 125,681,593 | 3,383,741 | -0.46% | 1.7% |
| 2022 | 125,124,989 | 3,433,748 | -0.44% | 1.48% |
| 2023 | 124,516,650 | 3,481,145 | -0.49% | 1.38% |
| 2024 | 123,975,371 | 3,524,788 | -0.43% | 1.25% |
| 2025 | 123,324,642 | 3,566,934 | -0.52% | 1.2% |
| 2026 | 122,647,678 | 3,607,194 | -0.55% | 1.13% |
| 2027 | 121,951,038 | 3,646,133 | -0.57% | 1.08% |
| 2028 | 121,241,776 | 3,684,133 | -0.58% | 1.04% |
| 2029 | 120,524,230 | 3,721,196 | -0.59% | 1.01% |
| 2030 | 119,798,959 | 3,757,736 | -0.6% | 0.98% |
| 2031 | 119,065,610 | 3,793,979 | -0.61% | 0.96% |
| 2032 | 118,326,333 | 3,830,403 | -0.62% | 0.96% |
| 2033 | 117,583,337 | 3,867,674 | -0.63% | 0.97% |
| 2034 | 116,836,274 | 3,905,872 | -0.64% | 0.99% |
| 2035 | 116,084,328 | 3,944,896 | -0.64% | 1% |
| 2036 | 115,332,395 | 3,984,836 | -0.65% | 1.01% |
| 2037 | 114,582,890 | 4,025,966 | -0.65% | 1.03% |
| 2038 | 113,837,760 | 4,067,894 | -0.65% | 1.04% |
| 2039 | 113,097,352 | 4,110,455 | -0.65% | 1.05% |
| 2040 | 112,359,802 | 4,153,587 | -0.65% | 1.05% |
| 2041 | 111,622,622 | 4,197,027 | -0.66% | 1.05% |
| 2042 | 110,891,223 | 4,240,723 | -0.66% | 1.04% |
| 2043 | 110,169,955 | 4,284,073 | -0.65% | 1.02% |
| 2044 | 109,455,823 | 4,327,016 | -0.65% | 1% |
| 2045 | 108,747,012 | 4,369,833 | -0.65% | 0.99% |
| 2046 | 108,044,346 | 4,411,717 | -0.65% | 0.96% |
| 2047 | 107,350,486 | 4,452,180 | -0.64% | 0.92% |
| 2048 | 106,665,616 | 4,491,289 | -0.64% | 0.88% |
| 2049 | 105,986,908 | 4,529,071 | -0.64% | 0.84% |
| 2050 | 105,312,022 | 4,565,277 | -0.64% | 0.8% |
From 2005 to 2015, the population of Japan decreased by 632,000 people (a 0.49% decline), while Mongolia gained 490,457 people (a 19.3% growth).
For the next 10 years, from 2015 to 2025, Japan lost -3,816,358 (a 3% decline), while Mongolia's population increased by 572,410 (a 18.9% growth).
Japan was ranked 10th most populous country in 2005 and is 12th in 2025. Mongolia was ranked 137th in 2005 and ranked 132nd now.
The UN's World Population Prospects forecasts that with changing growth rate trends in 25 years (in 2050) Japan's population will shrink by 14.6% to 105,312,022 people with a rank change from 12th to 17th. The population of Mongolia will increase by 26.8% to 4,565,277 people and rank change from 132nd to 130th.
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Population differences between Japan and Mongolia
|
Japan
|
Mongolia
|
|
|---|---|---|
| Life expectancy | 85 years | 72.2 years |
| Average age | 48.3 years | 29.6 years |
| Median age | 50.4 years | 27.8 years |
| Male:Female ratio | 48.8:51.2 | 49.9:50.1 |
| Fertility rate | 1.2 births per woman | 2.7 births per woman |
| Population density | 881 ppl/mi² | 5.86 ppl/mi² |
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