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Population in Japan compared to the United States: Trends, Charts, Rankings

Updated on by Georank team

The latest officially reported population of Japan was 123,975,371 in 2024 vs 340,110,988 people in the United States in 2024. In 2025, based on the adjusted UN estimation, the current Japan's population is 123,324,642 people compared to 343,323,530 in the United States.

Population statistics:

  • The United States' population is 2.78 times bigger than Japan's.
  • Japan is ranked the 12th most populous country in the world, while the United States is the 3rd.
  • The countries together account for 5.64% of the world: 1.49% for Japan vs 4.15% for the United States.
  • For the last 10 years, Japan has had an average growth rate of -0.25% per year vs +0.67% in the United States.
  • Since 2005, the population of Japan has decreased from 128M people to 123M (3.48% decline), while the United States has grown from 296M to 343M (16.2% growth).
  • The United States is projected to reach its peak in 2100 at 415M people, while Japan's population already peaked in 2010 at 128M people and is projected to decrease to 77M people by 2100.

Japan vs United States: live population counter

Japan United States
Current population
123324642
343323530
Population rank 12/197 3/197
Percent of world population 1.49% 4.15%
One net population change
58.3 seconds
6.07 seconds
One birth every
42.2 seconds
8.8 seconds
One death every
19.5 seconds
10.2 seconds
One migration net change every
3.43 minutes
24.5 seconds
Annual migration change +153,357 +1,286,132
Daily growth/decline -1,483 +14,236
Annual growth/decline -541,279 +5,196,093
Annual growth/decline rate -0.43% +1.55%
Population growth rate rank 182/197 72/197

Japan and the United States: population history and growth rate by year chart

Japan
Population

Growth rate
United States
Population

Growth rate
Year Population Growth rate
Japan United States Japan United States
1900 - 76,094,000 - -
1901 - 77,584,000 - 1.96%
1902 - 79,163,000 - 2.04%
1903 - 80,632,000 - 1.86%
1904 - 82,166,000 - 1.9%
1905 - 83,822,000 - 2.02%
1906 - 85,450,000 - 1.94%
1907 - 87,008,000 - 1.82%
1908 - 88,710,000 - 1.96%
1909 - 90,490,000 - 2.01%
1910 - 92,407,000 - 2.12%
1911 - 93,863,000 - 1.58%
1912 - 95,335,000 - 1.57%
1913 - 97,225,000 - 1.98%
1914 - 99,111,000 - 1.94%
1915 - 100,546,000 - 1.45%
1916 - 101,961,000 - 1.41%
1917 - 103,268,000 - 1.28%
1918 - 103,208,000 - -0.06%
1919 - 104,514,000 - 1.27%
1920 - 106,461,000 - 1.86%
1921 - 108,538,000 - 1.95%
1922 - 110,049,000 - 1.39%
1923 - 111,947,000 - 1.72%
1924 - 114,109,000 - 1.93%
1925 - 115,829,000 - 1.51%
1926 - 117,397,000 - 1.35%
1927 - 119,035,000 - 1.4%
1928 - 120,509,000 - 1.24%
1929 - 121,767,000 - 1.04%
1930 - 123,076,741 - 1.08%
1931 - 124,039,648 - 0.78%
1932 - 124,840,471 - 0.65%
1933 - 125,578,763 - 0.59%
1934 - 126,373,773 - 0.63%
1935 - 127,250,232 - 0.69%
1936 - 128,053,180 - 0.63%
1937 - 128,824,829 - 0.6%
1938 - 129,824,939 - 0.78%
1939 - 130,879,718 - 0.81%
1940 - 132,122,446 - 0.95%
1941 - 133,402,471 - 0.97%
1942 - 134,859,553 - 1.09%
1943 - 136,739,353 - 1.39%
1944 - 138,397,345 - 1.21%
1945 - 139,928,165 - 1.11%
1946 - 141,388,566 - 1.04%
1947 - 144,126,071 - 1.94%
1948 - 146,631,302 - 1.74%
1949 - 149,188,130 - 1.74%
1950 - 152,271,417 - 2.07%
1951 - 154,877,889 - 1.71%
1952 - 157,552,740 - 1.73%
1953 - 160,184,192 - 1.67%
1954 - 163,025,854 - 1.77%
1955 - 165,931,202 - 1.78%
1956 - 168,903,031 - 1.79%
1957 - 171,984,130 - 1.82%
1958 - 174,881,904 - 1.68%
1959 - 177,829,628 - 1.69%
1960 93,216,000 180,671,158 - 1.6%
1961 94,055,000 183,691,481 0.9% 1.67%
1962 94,933,000 186,537,737 0.93% 1.55%
1963 95,900,000 189,241,798 1.02% 1.45%
1964 96,903,000 191,888,791 1.05% 1.4%
1965 97,952,000 194,302,963 1.08% 1.26%
1966 98,851,000 196,560,338 0.92% 1.16%
1967 99,879,000 198,712,056 1.04% 1.09%
1968 101,011,000 200,706,052 1.13% 1%
1969 102,219,000 202,676,946 1.2% 0.98%
1970 103,403,000 205,052,174 1.16% 1.17%
1971 105,697,000 207,660,677 2.22% 1.27%
1972 107,188,000 209,896,021 1.41% 1.08%
1973 108,707,000 211,908,788 1.42% 0.96%
1974 110,162,000 213,853,928 1.34% 0.92%
1975 111,573,000 215,973,199 1.28% 0.99%
1976 112,775,000 218,035,164 1.08% 0.95%
1977 113,872,000 220,239,425 0.97% 1.01%
1978 114,913,000 222,584,545 0.91% 1.06%
1979 115,890,000 225,055,487 0.85% 1.11%
1980 116,807,000 226,542,250 0.79% 0.66%
1981 117,661,000 229,465,744 0.73% 1.29%
1982 118,480,000 231,664,432 0.7% 0.96%
1983 119,307,000 233,792,014 0.7% 0.92%
1984 120,083,000 235,824,908 0.65% 0.87%
1985 120,837,000 237,923,734 0.63% 0.89%
1986 121,482,000 240,132,831 0.53% 0.93%
1987 122,069,000 242,288,936 0.48% 0.9%
1988 122,578,000 244,499,004 0.42% 0.91%
1989 123,069,000 246,819,222 0.4% 0.95%
1990 123,478,000 250,131,894 0.33% 1.34%
1991 123,964,000 253,492,503 0.39% 1.34%
1992 124,425,000 256,894,189 0.37% 1.34%
1993 124,829,000 260,255,352 0.32% 1.31%
1994 125,178,000 263,435,673 0.28% 1.22%
1995 125,472,000 266,557,091 0.23% 1.18%
1996 125,757,000 269,667,391 0.23% 1.17%
1997 126,057,000 272,911,760 0.24% 1.2%
1998 126,400,000 276,115,288 0.27% 1.17%
1999 126,631,000 279,294,713 0.18% 1.15%
2000 126,843,000 282,162,411 0.17% 1.03%
2001 127,149,000 284,968,955 0.24% 0.99%
2002 127,445,000 287,625,193 0.23% 0.93%
2003 127,718,000 290,107,933 0.21% 0.86%
2004 127,761,000 292,805,298 0.03% 0.93%
2005 127,773,000 295,516,599 0.009% 0.93%
2006 127,854,000 298,379,912 0.06% 0.97%
2007 128,001,000 301,231,207 0.11% 0.96%
2008 128,063,000 304,093,966 0.05% 0.95%
2009 128,047,000 306,771,529 -0.01% 0.88%
2010 128,070,000 309,327,143 0.02% 0.83%
2011 127,833,000 311,583,481 -0.19% 0.73%
2012 127,629,000 313,877,662 -0.16% 0.74%
2013 127,445,000 316,059,947 -0.14% 0.7%
2014 127,276,000 318,386,329 -0.13% 0.74%
2015 127,141,000 320,738,994 -0.11% 0.74%
2016 127,076,000 323,071,755 -0.05% 0.73%
2017 126,972,000 325,122,128 -0.08% 0.63%
2018 126,811,000 326,838,199 -0.13% 0.53%
2019 126,633,000 328,329,953 -0.14% 0.46%
2020 126,261,000 331,526,933 -0.29% 0.97%
2021 125,681,593 331,893,745 -0.46% 0.11%
2022 125,124,989 333,271,411 -0.44% 0.42%
2023 124,516,650 334,914,895 -0.49% 0.49%
2024 123,975,371 340,110,988 -0.43% 1.55%
2025 123,324,642 341,931,772 -0.52% 0.54%
2026 122,647,678 343,664,369 -0.55% 0.51%
2027 121,951,038 345,331,185 -0.57% 0.49%
2028 121,241,776 346,981,137 -0.58% 0.48%
2029 120,524,230 348,601,982 -0.59% 0.47%
2030 119,798,959 350,176,974 -0.6% 0.45%
2031 119,065,610 351,725,612 -0.61% 0.44%
2032 118,326,333 353,249,060 -0.62% 0.43%
2033 117,583,337 354,749,644 -0.63% 0.42%
2034 116,836,274 356,234,239 -0.64% 0.42%
2035 116,084,328 357,694,316 -0.64% 0.41%
2036 115,332,395 359,119,002 -0.65% 0.4%
2037 114,582,890 360,517,853 -0.65% 0.39%
2038 113,837,760 361,895,407 -0.65% 0.38%
2039 113,097,352 363,229,908 -0.65% 0.37%
2040 112,359,802 364,512,364 -0.65% 0.35%
2041 111,622,622 365,753,139 -0.66% 0.34%
2042 110,891,223 366,969,419 -0.66% 0.33%
2043 110,169,955 368,146,925 -0.65% 0.32%
2044 109,455,823 369,258,123 -0.65% 0.3%
2045 108,747,012 370,318,770 -0.65% 0.29%
2046 108,044,346 371,328,255 -0.65% 0.27%
2047 107,350,486 372,299,116 -0.64% 0.26%
2048 106,665,616 373,230,539 -0.64% 0.25%
2049 105,986,908 374,119,803 -0.64% 0.24%
2050 105,312,022 374,986,259 -0.64% 0.23%

From 2005 to 2015, the population of Japan decreased by 632,000 people (a 0.49% decline), while the United States gained 25,222,395 people (a 8.54% growth).

For the next 10 years, from 2015 to 2025, Japan lost -3,816,358 (a 3% decline), while the United States' population increased by 22,584,536 (a 7.04% growth).

Japan was ranked 10th most populous country in 2005 and is 12th in 2025. The United States was ranked 3rd in 2005 and still ranked 3rd 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 the United States will increase by 9.22% to 374,986,259 people and will still be ranked 3rd.

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Population map with other countries

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