Number of 1-year-olds, by sex in Japan

Japan: Number of 1-year-olds, by sex was 390,411 people in 2023. ▼ Falling

Latest (2023)
390,411 people
Change on year
down 3.0%
World rank
37th
of 236 countries
All-time high
1.24 million people
in 1950
All-time low
390,411 people
in 2023
Years of data
74
1950–2023

Number of 1-year-olds, by sex in Japan, 1950–2023

400.0k600.0k800.0k1.0M1.2M195019862023

Source: UN, World Population Prospects (2024) – processed by Our World in Data. Measured in people.

Analysis

Japan recorded 390,411 people for number of 1-year-olds, by sex in 2023. That is the lowest value across all 74 years on record.

The figure is down 3.0% on the previous year and down 22.8% over ten years.

Over the whole period, number of 1-year-olds, by sex in Japan peaked at 1.24 million people in 1950 and was at its lowest, 390,411 people, in 2023.

Japan ranks 37th of 236 countries on this measure, in the top quarter.

The long-run direction has been consistently falling across the 74 years of available data.

Number of 1-year-olds, by sex in Japan, year by year

Annual values for Number of 1-year-olds, by sex in Japan, 1950 to 2023.
Year people Change
1950 1.24 million people
1951 1.14 million people -7.9%
1952 1.07 million people -6.3%
1953 998,619 people -6.6%
1954 934,119 people -6.5%
1955 869,850 people -6.9%
1956 841,253 people -3.3%
1957 822,912 people -2.2%
1958 781,389 people -5.0%
1959 777,523 people -0.5%
1960 794,227 people +2.1%
1961 786,820 people -0.9%
1962 777,490 people -1.2%
1963 774,207 people -0.4%
1964 788,370 people +1.8%
1965 817,774 people +3.7%
1966 853,709 people +4.4%
1967 782,657 people -8.3%
1968 813,071 people +3.9%
1969 914,303 people +12.5%
1970 896,520 people -1.9%
1971 924,106 people +3.1%
1972 974,415 people +5.4%
1973 1.01 million people +3.7%
1974 1.04 million people +2.6%
1975 1.03 million people -0.3%
1976 981,179 people -5.0%
1977 921,707 people -6.1%
1978 877,101 people -4.8%
1979 845,545 people -3.6%
1980 818,324 people -3.2%
1981 784,475 people -4.1%
1982 750,013 people -4.4%
1983 726,661 people -3.1%
1984 716,740 people -1.4%
1985 707,952 people -1.2%
1986 687,305 people -2.9%
1987 659,067 people -4.1%
1988 637,333 people -3.3%
1989 620,025 people -2.7%
1990 596,383 people -3.8%
1991 575,865 people -3.4%
1992 571,718 people -0.7%
1993 570,808 people -0.2%
1994 565,818 people -0.9%
1995 573,074 people +1.3%
1996 576,120 people +0.5%
1997 572,590 people -0.6%
1998 575,362 people +0.5%
1999 577,221 people +0.3%
2000 576,616 people -0.1%
2001 576,442 people -0.0%
2002 575,942 people -0.1%
2003 568,021 people -1.4%
2004 557,672 people -1.8%
2005 547,671 people -1.8%
2006 533,846 people -2.5%
2007 528,223 people -1.1%
2008 531,739 people +0.7%
2009 531,431 people -0.1%
2010 527,014 people -0.8%
2011 519,972 people -1.3%
2012 513,299 people -1.3%
2013 505,885 people -1.4%
2014 499,838 people -1.2%
2015 489,320 people -2.1%
2016 483,150 people -1.3%
2017 478,182 people -1.0%
2018 464,661 people -2.8%
2019 450,968 people -2.9%
2020 433,039 people -4.0%
2021 415,362 people -4.1%
2022 402,296 people -3.1%
2023 390,411 people -3.0%

Japan compared with similar countries

  • Japan's 390,411 people is above the median for high income countries, which is 11,586 people, 33.7× the median. (85 countries reporting)
  • Japan's 390,411 people is above the median for East Asia & Pacific, which is 14,573 people, 26.8× the median. (37 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1950s 947,624 people 777,523 people 1.24 million people 10
1960s 810,263 people 774,207 people 914,303 people 10
1970s 950,092 people 845,545 people 1.04 million people 10
1980s 710,790 people 620,025 people 818,324 people 10
1990s 575,496 people 565,818 people 596,383 people 10
2000s 552,760 people 528,223 people 576,616 people 10
2010s 493,229 people 450,968 people 527,014 people 10
2020s 410,277 people 390,411 people 433,039 people 4

Countries ranked near Japan

  1. 34 Myanmar 428,033 people compare
  2. 35 Mali 423,895 people compare
  3. 36 Ghana 419,131 people compare
  4. 38 Germany 376,750 people compare
  5. 39 Chad 361,969 people compare
  6. 40 Colombia 347,549 people compare

See the full ranking of 236 places →

More reference data data for Japan

All data for Japan →

Frequently asked questions

What is number of 1-year-olds, by sex in Japan?
Number of 1-year-olds, by sex in Japan was 390,411 people in 2023, according to UN, World Population Prospects (2024) – processed by Our World in Data.
What is the highest number of 1-year-olds, by sex recorded in Japan?
The highest recorded value was 1.24 million people in 1950.
What is the lowest number of 1-year-olds, by sex recorded in Japan?
The lowest recorded value was 390,411 people in 2023.
How does Japan rank for number of 1-year-olds, by sex?
Japan ranks 37th out of 236 countries with data for 2023.
Is number of 1-year-olds, by sex rising or falling in Japan?
Over the last ten years it is down 22.8%. The long-run trend across the full record is falling.
Where does this Japan data come from?
The figures come from UN, World Population Prospects (2024) – processed by Our World in Data, published as part of Number of 1-year-olds, by sex. Statizoid updates them automatically from the source API.

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Number of 1-year-olds, by sex in Japan. Statizoid, drawing on UN, World Population Prospects (2024) – processed by Our World in Data. Retrieved 23 September 2026, from https://reference.statizoid.com/stat/number-of-one-year-olds/japan/

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About this data

Indicator
Number of 1-year-olds, by sex
Unit
people
Source
UN, World Population Prospects (2024) – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
236 places, 17,464 data points, 1950–2023
Last refreshed

Total population, measured on 1 July of the year shown. This only includes women aged 1.