The latest officially reported population of Ireland was 5,380,257 in 2024 vs 123,975,371 people in Japan in 2024. In 2025, based on the adjusted UN estimation, the current Ireland's population is 5,474,763 people compared to 123,324,642 in Japan.
Population statistics:
- Japan's population is 22.5 times bigger than Ireland's.
- Ireland is ranked the 121st most populous country in the world, while Japan is the 12th.
- The countries together account for 1.56% of the world: 0.07% for Ireland vs 1.49% for Japan.
- For the last 10 years, Ireland has had an average growth rate of +1.39% per year vs -0.25% in Japan.
- Since 2005, the population of Ireland has increased from 4.16M people to 5.47M (31.6% growth), while Japan has declined from 128M to 123M (3.48% decline).
- Ireland is projected to reach its peak in 2053 at 6.12M people, while Japan's population already peaked in 2010 at 128M people and is projected to decrease to 77M people by 2100.
Ireland vs Japan: live population counter
Ireland
|
Japan
|
|
|---|---|---|
| Current population |
5474763
|
123324642
|
| Population rank | 121/197 | 12/197 |
| Percent of world population | 0.07% | 1.49% |
| One net population change |
7.23 minutes
|
58.3 seconds
|
| One birth every |
9.61 minutes
|
42.2 seconds
|
| One death every |
15 minutes
|
19.5 seconds
|
| One migration net change every |
13.5 minutes
|
3.43 minutes
|
| Annual migration change | +39,059 | +153,357 |
| Daily growth/decline | +199 | -1,483 |
| Annual growth/decline | +72,657 | -541,279 |
| Annual growth/decline rate | +1.37% | -0.43% |
| Population growth rate rank | 78/197 | 182/197 |
Ireland and Japan: population history and growth rate by year chart
Ireland
Population
Growth rate
Japan
Population
Growth rate
| Year | Population | Growth rate | ||
|---|---|---|---|---|
|
Ireland
|
Japan
|
Ireland
|
Japan
|
|
| 1960 | 2,828,600 | 93,216,000 | - | - |
| 1961 | 2,824,400 | 94,055,000 | -0.15% | 0.9% |
| 1962 | 2,836,050 | 94,933,000 | 0.41% | 0.93% |
| 1963 | 2,852,650 | 95,900,000 | 0.59% | 1.02% |
| 1964 | 2,866,550 | 96,903,000 | 0.49% | 1.05% |
| 1965 | 2,877,300 | 97,952,000 | 0.38% | 1.08% |
| 1966 | 2,888,800 | 98,851,000 | 0.4% | 0.92% |
| 1967 | 2,902,450 | 99,879,000 | 0.47% | 1.04% |
| 1968 | 2,915,550 | 101,011,000 | 0.45% | 1.13% |
| 1969 | 2,932,650 | 102,219,000 | 0.59% | 1.2% |
| 1970 | 2,957,250 | 103,403,000 | 0.84% | 1.16% |
| 1971 | 2,992,050 | 105,697,000 | 1.18% | 2.22% |
| 1972 | 3,036,850 | 107,188,000 | 1.5% | 1.41% |
| 1973 | 3,085,950 | 108,707,000 | 1.62% | 1.42% |
| 1974 | 3,137,500 | 110,162,000 | 1.67% | 1.34% |
| 1975 | 3,189,550 | 111,573,000 | 1.66% | 1.28% |
| 1976 | 3,238,050 | 112,775,000 | 1.52% | 1.08% |
| 1977 | 3,282,200 | 113,872,000 | 1.36% | 0.97% |
| 1978 | 3,329,100 | 114,913,000 | 1.43% | 0.91% |
| 1979 | 3,373,750 | 115,890,000 | 1.34% | 0.85% |
| 1980 | 3,412,800 | 116,807,000 | 1.16% | 0.79% |
| 1981 | 3,453,000 | 117,661,000 | 1.18% | 0.73% |
| 1982 | 3,485,800 | 118,480,000 | 0.95% | 0.7% |
| 1983 | 3,510,600 | 119,307,000 | 0.71% | 0.7% |
| 1984 | 3,532,423 | 120,083,000 | 0.62% | 0.65% |
| 1985 | 3,538,082 | 120,837,000 | 0.16% | 0.63% |
| 1986 | 3,539,690 | 121,482,000 | 0.05% | 0.53% |
| 1987 | 3,540,057 | 122,069,000 | 0.01% | 0.48% |
| 1988 | 3,524,949 | 122,578,000 | -0.43% | 0.42% |
| 1989 | 3,511,009 | 123,069,000 | -0.4% | 0.4% |
| 1990 | 3,513,974 | 123,478,000 | 0.08% | 0.33% |
| 1991 | 3,534,235 | 123,964,000 | 0.58% | 0.39% |
| 1992 | 3,558,430 | 124,425,000 | 0.68% | 0.37% |
| 1993 | 3,576,261 | 124,829,000 | 0.5% | 0.32% |
| 1994 | 3,590,386 | 125,178,000 | 0.39% | 0.28% |
| 1995 | 3,608,841 | 125,472,000 | 0.51% | 0.23% |
| 1996 | 3,637,510 | 125,757,000 | 0.79% | 0.23% |
| 1997 | 3,674,171 | 126,057,000 | 1.01% | 0.24% |
| 1998 | 3,712,696 | 126,400,000 | 1.05% | 0.27% |
| 1999 | 3,754,786 | 126,631,000 | 1.13% | 0.18% |
| 2000 | 3,805,174 | 126,843,000 | 1.34% | 0.17% |
| 2001 | 3,866,243 | 127,149,000 | 1.6% | 0.24% |
| 2002 | 3,931,947 | 127,445,000 | 1.7% | 0.23% |
| 2003 | 3,996,521 | 127,718,000 | 1.64% | 0.21% |
| 2004 | 4,070,262 | 127,761,000 | 1.85% | 0.03% |
| 2005 | 4,159,914 | 127,773,000 | 2.2% | 0.009% |
| 2006 | 4,273,591 | 127,854,000 | 2.73% | 0.06% |
| 2007 | 4,398,942 | 128,001,000 | 2.93% | 0.11% |
| 2008 | 4,489,544 | 128,063,000 | 2.06% | 0.05% |
| 2009 | 4,535,375 | 128,047,000 | 1.02% | -0.01% |
| 2010 | 4,560,155 | 128,070,000 | 0.55% | 0.02% |
| 2011 | 4,580,084 | 127,833,000 | 0.44% | -0.19% |
| 2012 | 4,599,533 | 127,629,000 | 0.42% | -0.16% |
| 2013 | 4,623,816 | 127,445,000 | 0.53% | -0.14% |
| 2014 | 4,657,740 | 127,276,000 | 0.73% | -0.13% |
| 2015 | 4,701,957 | 127,141,000 | 0.95% | -0.11% |
| 2016 | 4,762,722 | 127,076,000 | 1.29% | -0.05% |
| 2017 | 4,827,445 | 126,972,000 | 1.36% | -0.08% |
| 2018 | 4,898,022 | 126,811,000 | 1.46% | -0.13% |
| 2019 | 4,976,456 | 126,633,000 | 1.6% | -0.14% |
| 2020 | 5,039,747 | 126,261,000 | 1.27% | -0.29% |
| 2021 | 5,110,585 | 125,681,593 | 1.41% | -0.46% |
| 2022 | 5,212,836 | 125,124,989 | 2% | -0.44% |
| 2023 | 5,307,600 | 124,516,650 | 1.82% | -0.49% |
| 2024 | 5,380,257 | 123,975,371 | 1.37% | -0.43% |
| 2025 | 5,434,538 | 123,324,642 | 1.01% | -0.52% |
| 2026 | 5,484,615 | 122,647,678 | 0.92% | -0.55% |
| 2027 | 5,531,657 | 121,951,038 | 0.86% | -0.57% |
| 2028 | 5,576,425 | 121,241,776 | 0.81% | -0.58% |
| 2029 | 5,618,258 | 120,524,230 | 0.75% | -0.59% |
| 2030 | 5,656,768 | 119,798,959 | 0.69% | -0.6% |
| 2031 | 5,693,185 | 119,065,610 | 0.64% | -0.61% |
| 2032 | 5,728,435 | 118,326,333 | 0.62% | -0.62% |
| 2033 | 5,761,833 | 117,583,337 | 0.58% | -0.63% |
| 2034 | 5,793,145 | 116,836,274 | 0.54% | -0.64% |
| 2035 | 5,822,398 | 116,084,328 | 0.5% | -0.64% |
| 2036 | 5,850,388 | 115,332,395 | 0.48% | -0.65% |
| 2037 | 5,878,309 | 114,582,890 | 0.48% | -0.65% |
| 2038 | 5,905,728 | 113,837,760 | 0.47% | -0.65% |
| 2039 | 5,931,438 | 113,097,352 | 0.44% | -0.65% |
| 2040 | 5,956,212 | 112,359,802 | 0.42% | -0.65% |
| 2041 | 5,980,704 | 111,622,622 | 0.41% | -0.66% |
| 2042 | 6,002,968 | 110,891,223 | 0.37% | -0.66% |
| 2043 | 6,022,662 | 110,169,955 | 0.33% | -0.65% |
| 2044 | 6,041,053 | 109,455,823 | 0.31% | -0.65% |
| 2045 | 6,057,952 | 108,747,012 | 0.28% | -0.65% |
| 2046 | 6,072,174 | 108,044,346 | 0.23% | -0.65% |
| 2047 | 6,084,484 | 107,350,486 | 0.2% | -0.64% |
| 2048 | 6,096,077 | 106,665,616 | 0.19% | -0.64% |
| 2049 | 6,105,740 | 105,986,908 | 0.16% | -0.64% |
| 2050 | 6,112,322 | 105,312,022 | 0.11% | -0.64% |
From 2005 to 2015, the population of Ireland increased by 542,043 people (a 13% growth), while Japan lost 632,000 people (a 0.49% decline).
For the next 10 years, from 2015 to 2025, Ireland gained 772,806 (a 16.4% growth), while Japan's population decreased by -3,816,358 (a 3% decline).
Ireland was ranked 121st most populous country in 2005 and is still 121st in 2025. Japan was ranked 10th in 2005 and ranked 12th now.
The UN's World Population Prospects forecasts that with changing growth rate trends in 25 years (in 2050) Ireland's population will grow by 11.6% to 6,112,322 people with a rank change from 121st to 120th. The population of Japan will decrease by 14.6% to 105,312,022 people and rank change from 12th to 17th.
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Population differences between Ireland and Japan
|
Ireland
|
Japan
|
|
|---|---|---|
| Life expectancy | 82.7 years | 85 years |
| Average age | 39.4 years | 48.3 years |
| Median age | 39.7 years | 50.4 years |
| Male:Female ratio | 49.5:50.5 | 48.8:51.2 |
| Fertility rate | 1.5 births per woman | 1.2 births per woman |
| Population density | 202.3 ppl/mi² | 881 ppl/mi² |
Population map with other countries
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Growth rate visualization in other countries
Growth rate
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