The latest officially reported population of Japan was 123,975,371 in 2024 vs 5,169,395 people in Mauritania in 2024. In 2025, based on the adjusted UN estimation, the current Japan's population is 123,324,642 people compared to 5,432,542 in Mauritania.
Population statistics:
- Japan's population is 22.7 times bigger than Mauritania's.
- Japan is ranked the 12th most populous country in the world, while Mauritania is the 123rd.
- The countries together account for 1.56% of the world: 1.49% for Japan vs 0.07% for Mauritania.
- For the last 10 years, Japan has had an average growth rate of -0.25% per year vs +3% in Mauritania.
- Since 2005, the population of Japan has decreased from 128M people to 123M (3.48% decline), while Mauritania has grown from 2.94M to 5.43M (84.8% growth).
- Mauritania is projected to reach its peak in 2100 at 17.1M people, while Japan's population already peaked in 2010 at 128M people and is projected to decrease to 77M people by 2100.
Japan vs Mauritania: live population counter
Japan
|
Mauritania
|
|
|---|---|---|
| Current population |
123324642
|
5432542
|
| Population rank | 12/197 | 123/197 |
| Percent of world population | 1.49% | 0.07% |
| One net population change |
58.3 seconds
|
3.58 minutes
|
| One birth every |
42.2 seconds
|
3.04 minutes
|
| One death every |
19.5 seconds
|
19 minutes
|
| One migration net change every |
3.43 minutes
|
4.01 hours
|
| Annual migration change | +153,357 | -2,185 |
| Daily growth/decline | -1,483 | +403 |
| Annual growth/decline | -541,279 | +146,954 |
| Annual growth/decline rate | -0.43% | +2.93% |
| Population growth rate rank | 182/197 | 18/197 |
Japan and Mauritania: population history and growth rate by year chart
Japan
Population
Growth rate
Mauritania
Population
Growth rate
| Year | Population | Growth rate | ||
|---|---|---|---|---|
|
Japan
|
Mauritania
|
Japan
|
Mauritania
|
|
| 1960 | 93,216,000 | 824,298 | - | - |
| 1961 | 94,055,000 | 846,167 | 0.9% | 2.65% |
| 1962 | 94,933,000 | 869,184 | 0.93% | 2.72% |
| 1963 | 95,900,000 | 893,423 | 1.02% | 2.79% |
| 1964 | 96,903,000 | 918,955 | 1.05% | 2.86% |
| 1965 | 97,952,000 | 945,838 | 1.08% | 2.93% |
| 1966 | 98,851,000 | 974,157 | 0.92% | 2.99% |
| 1967 | 99,879,000 | 1,003,843 | 1.04% | 3.05% |
| 1968 | 101,011,000 | 1,034,739 | 1.13% | 3.08% |
| 1969 | 102,219,000 | 1,066,754 | 1.2% | 3.09% |
| 1970 | 103,403,000 | 1,099,806 | 1.16% | 3.1% |
| 1971 | 105,697,000 | 1,133,702 | 2.22% | 3.08% |
| 1972 | 107,188,000 | 1,168,355 | 1.41% | 3.06% |
| 1973 | 108,707,000 | 1,203,838 | 1.42% | 3.04% |
| 1974 | 110,162,000 | 1,240,188 | 1.34% | 3.02% |
| 1975 | 111,573,000 | 1,277,330 | 1.28% | 2.99% |
| 1976 | 112,775,000 | 1,315,336 | 1.08% | 2.98% |
| 1977 | 113,872,000 | 1,353,768 | 0.97% | 2.92% |
| 1978 | 114,913,000 | 1,392,713 | 0.91% | 2.88% |
| 1979 | 115,890,000 | 1,432,758 | 0.85% | 2.88% |
| 1980 | 116,807,000 | 1,474,043 | 0.79% | 2.88% |
| 1981 | 117,661,000 | 1,516,877 | 0.73% | 2.91% |
| 1982 | 118,480,000 | 1,561,176 | 0.7% | 2.92% |
| 1983 | 119,307,000 | 1,606,746 | 0.7% | 2.92% |
| 1984 | 120,083,000 | 1,653,693 | 0.65% | 2.92% |
| 1985 | 120,837,000 | 1,702,107 | 0.63% | 2.93% |
| 1986 | 121,482,000 | 1,751,835 | 0.53% | 2.92% |
| 1987 | 122,069,000 | 1,803,014 | 0.48% | 2.92% |
| 1988 | 122,578,000 | 1,855,859 | 0.42% | 2.93% |
| 1989 | 123,069,000 | 1,903,048 | 0.4% | 2.54% |
| 1990 | 123,478,000 | 1,951,878 | 0.33% | 2.57% |
| 1991 | 123,964,000 | 2,009,738 | 0.39% | 2.96% |
| 1992 | 124,425,000 | 2,088,135 | 0.37% | 3.9% |
| 1993 | 124,829,000 | 2,174,328 | 0.32% | 4.13% |
| 1994 | 125,178,000 | 2,249,454 | 0.28% | 3.46% |
| 1995 | 125,472,000 | 2,312,017 | 0.23% | 2.78% |
| 1996 | 125,757,000 | 2,358,188 | 0.23% | 2% |
| 1997 | 126,057,000 | 2,411,306 | 0.24% | 2.25% |
| 1998 | 126,400,000 | 2,474,651 | 0.27% | 2.63% |
| 1999 | 126,631,000 | 2,541,698 | 0.18% | 2.71% |
| 2000 | 126,843,000 | 2,613,441 | 0.17% | 2.82% |
| 2001 | 127,149,000 | 2,678,760 | 0.24% | 2.5% |
| 2002 | 127,445,000 | 2,738,655 | 0.23% | 2.24% |
| 2003 | 127,718,000 | 2,802,046 | 0.21% | 2.31% |
| 2004 | 127,761,000 | 2,868,664 | 0.03% | 2.38% |
| 2005 | 127,773,000 | 2,939,059 | 0.009% | 2.45% |
| 2006 | 127,854,000 | 3,013,660 | 0.06% | 2.54% |
| 2007 | 128,001,000 | 3,093,059 | 0.11% | 2.63% |
| 2008 | 128,063,000 | 3,183,269 | 0.05% | 2.92% |
| 2009 | 128,047,000 | 3,284,448 | -0.01% | 3.18% |
| 2010 | 128,070,000 | 3,390,965 | 0.02% | 3.24% |
| 2011 | 127,833,000 | 3,502,811 | -0.19% | 3.3% |
| 2012 | 127,629,000 | 3,619,034 | -0.16% | 3.32% |
| 2013 | 127,445,000 | 3,734,318 | -0.14% | 3.19% |
| 2014 | 127,276,000 | 3,848,514 | -0.13% | 3.06% |
| 2015 | 127,141,000 | 3,965,959 | -0.11% | 3.05% |
| 2016 | 127,076,000 | 4,086,657 | -0.05% | 3.04% |
| 2017 | 126,972,000 | 4,210,600 | -0.08% | 3.03% |
| 2018 | 126,811,000 | 4,337,685 | -0.13% | 3.02% |
| 2019 | 126,633,000 | 4,467,708 | -0.14% | 3% |
| 2020 | 126,261,000 | 4,600,131 | -0.29% | 2.96% |
| 2021 | 125,681,593 | 4,734,874 | -0.46% | 2.93% |
| 2022 | 125,124,989 | 4,875,637 | -0.44% | 2.97% |
| 2023 | 124,516,650 | 5,022,441 | -0.49% | 3.01% |
| 2024 | 123,975,371 | 5,169,395 | -0.43% | 2.93% |
| 2025 | 123,324,642 | 5,315,063 | -0.52% | 2.82% |
| 2026 | 122,647,678 | 5,461,313 | -0.55% | 2.75% |
| 2027 | 121,951,038 | 5,608,785 | -0.57% | 2.7% |
| 2028 | 121,241,776 | 5,757,952 | -0.58% | 2.66% |
| 2029 | 120,524,230 | 5,909,186 | -0.59% | 2.63% |
| 2030 | 119,798,959 | 6,062,523 | -0.6% | 2.59% |
| 2031 | 119,065,610 | 6,217,791 | -0.61% | 2.56% |
| 2032 | 118,326,333 | 6,374,839 | -0.62% | 2.53% |
| 2033 | 117,583,337 | 6,533,828 | -0.63% | 2.49% |
| 2034 | 116,836,274 | 6,694,445 | -0.64% | 2.46% |
| 2035 | 116,084,328 | 6,856,314 | -0.64% | 2.42% |
| 2036 | 115,332,395 | 7,019,227 | -0.65% | 2.38% |
| 2037 | 114,582,890 | 7,183,105 | -0.65% | 2.33% |
| 2038 | 113,837,760 | 7,348,357 | -0.65% | 2.3% |
| 2039 | 113,097,352 | 7,514,734 | -0.65% | 2.26% |
| 2040 | 112,359,802 | 7,681,907 | -0.65% | 2.22% |
| 2041 | 111,622,622 | 7,850,210 | -0.66% | 2.19% |
| 2042 | 110,891,223 | 8,020,480 | -0.66% | 2.17% |
| 2043 | 110,169,955 | 8,192,542 | -0.65% | 2.15% |
| 2044 | 109,455,823 | 8,365,171 | -0.65% | 2.11% |
| 2045 | 108,747,012 | 8,538,521 | -0.65% | 2.07% |
| 2046 | 108,044,346 | 8,713,247 | -0.65% | 2.05% |
| 2047 | 107,350,486 | 8,888,466 | -0.64% | 2.01% |
| 2048 | 106,665,616 | 9,064,207 | -0.64% | 1.98% |
| 2049 | 105,986,908 | 9,240,169 | -0.64% | 1.94% |
| 2050 | 105,312,022 | 9,415,589 | -0.64% | 1.9% |
From 2005 to 2015, the population of Japan decreased by 632,000 people (a 0.49% decline), while Mauritania gained 1,026,900 people (a 34.9% growth).
For the next 10 years, from 2015 to 2025, Japan lost -3,816,358 (a 3% decline), while Mauritania's population increased by 1,466,583 (a 37% growth).
Japan was ranked 10th most populous country in 2005 and is 12th in 2025. Mauritania was ranked 133rd in 2005 and ranked 123rd 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 Mauritania will increase by 73.3% to 9,415,589 people and rank change from 123rd to 103rd.
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Population differences between Japan and Mauritania
|
Japan
|
Mauritania
|
|
|---|---|---|
| Life expectancy | 85 years | 68.9 years |
| Average age | 48.3 years | 23 years |
| Median age | 50.4 years | 18.4 years |
| Male:Female ratio | 48.8:51.2 | 49.1:50.9 |
| Fertility rate | 1.2 births per woman | 4.7 births per woman |
| Population density | 881 ppl/mi² | 13 ppl/mi² |
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