The latest officially reported population of Brunei was 466,330 in 2025 vs 123,366,734 people in Japan in 2025. In 2026, based on the adjusted UN estimation, the current Brunei's population is 471,596 people compared to 122,704,252 in Japan.
Population statistics:
- Japan's population is 260.2 times bigger than Brunei's.
- Brunei is ranked the 170th most populous country in the world, while Japan is the 12th.
- The countries together account for 1.48% of the world: 0.006% for Brunei vs 1.48% for Japan.
- For the last 10 years, Brunei has had an average growth rate of +1.03% per year vs -0.28% in Japan.
- Since 2006, the population of Brunei has increased from 365K people to 472K (29.3% growth), while Japan has declined from 128M to 123M (4.03% decline).
Brunei vs Japan: population by year and forecast
| Year | Population | |
|---|---|---|
Brunei
|
Japan
|
|
| 2100 | 467,305 | 76,995,942 |
| 2099 | 468,844 | 77,380,486 |
| 2098 | 470,362 | 77,759,557 |
| 2097 | 471,774 | 78,135,569 |
| 2096 | 473,274 | 78,515,892 |
| 2095 | 474,709 | 78,892,606 |
| 2094 | 476,211 | 79,267,768 |
| 2093 | 477,690 | 79,645,584 |
| 2092 | 479,206 | 80,025,578 |
| 2091 | 480,680 | 80,401,222 |
| 2090 | 482,205 | 80,778,500 |
| 2089 | 483,829 | 81,158,413 |
| 2088 | 485,465 | 81,539,639 |
| 2087 | 487,012 | 81,926,401 |
| 2086 | 488,509 | 82,322,612 |
| 2085 | 490,142 | 82,727,738 |
| 2084 | 491,731 | 83,141,354 |
| 2083 | 493,405 | 83,562,394 |
| 2082 | 495,083 | 83,998,809 |
| 2081 | 496,722 | 84,447,888 |
| 2080 | 498,316 | 84,918,455 |
| 2079 | 499,888 | 85,406,042 |
| 2078 | 501,377 | 85,916,840 |
| 2077 | 502,966 | 86,453,316 |
| 2076 | 504,477 | 87,012,155 |
| 2075 | 506,274 | 87,597,053 |
| 2074 | 507,959 | 88,209,803 |
| 2073 | 509,492 | 88,854,316 |
| 2072 | 510,925 | 89,519,055 |
| 2071 | 512,139 | 90,204,314 |
| 2070 | 513,323 | 90,919,143 |
| 2069 | 514,593 | 91,645,589 |
| 2068 | 515,914 | 92,388,299 |
| 2067 | 517,235 | 93,133,993 |
| 2066 | 518,340 | 93,889,902 |
| 2065 | 519,319 | 94,654,259 |
| 2064 | 520,157 | 95,412,429 |
| 2063 | 520,866 | 96,169,244 |
| 2062 | 521,364 | 96,924,236 |
| 2061 | 521,880 | 97,675,525 |
| 2060 | 522,301 | 98,422,553 |
| 2059 | 522,678 | 99,166,038 |
| 2058 | 523,011 | 99,890,950 |
| 2057 | 523,253 | 100,607,740 |
| 2056 | 523,298 | 101,318,164 |
| 2055 | 523,308 | 102,012,184 |
| 2054 | 523,127 | 102,706,063 |
| 2053 | 522,924 | 103,381,833 |
| 2052 | 522,555 | 104,059,800 |
| 2051 | 521,910 | 104,729,745 |
| 2050 | 521,119 | 105,400,477 |
| 2049 | 520,183 | 106,076,354 |
| 2048 | 519,132 | 106,754,699 |
| 2047 | 517,984 | 107,442,881 |
| 2046 | 516,748 | 108,139,155 |
| 2045 | 515,241 | 108,844,934 |
| 2044 | 513,822 | 109,553,441 |
| 2043 | 512,299 | 110,269,851 |
| 2042 | 510,642 | 110,992,599 |
| 2041 | 508,802 | 111,729,216 |
| 2040 | 506,973 | 112,463,507 |
| 2039 | 504,969 | 113,200,859 |
| 2038 | 502,664 | 113,940,856 |
| 2037 | 500,520 | 114,687,611 |
| 2036 | 498,350 | 115,436,359 |
| 2035 | 495,973 | 116,187,949 |
| 2034 | 493,539 | 116,936,734 |
| 2033 | 491,041 | 117,678,572 |
| 2032 | 488,550 | 118,419,247 |
| 2031 | 485,750 | 119,153,646 |
| 2030 | 482,789 | 119,882,512 |
| 2029 | 479,823 | 120,600,781 |
| 2028 | 476,642 | 121,314,239 |
| 2027 | 473,245 | 122,015,984 |
| 2026 | 469,856 | 122,704,252 |
| 2025 | 466,330 | 123,366,734 |
| 2024 | 462,721 | 123,975,371 |
| 2023 | 458,949 | 124,516,650 |
| 2022 | 455,370 | 125,124,989 |
| 2021 | 451,721 | 125,681,593 |
| 2020 | 447,404 | 126,261,000 |
| 2019 | 442,680 | 126,633,000 |
| 2018 | 437,810 | 126,811,000 |
| 2017 | 432,772 | 126,972,000 |
| 2016 | 427,564 | 127,076,000 |
| 2015 | 422,212 | 127,141,000 |
| 2014 | 416,750 | 127,276,000 |
| 2013 | 411,202 | 127,445,000 |
| 2012 | 405,557 | 127,629,000 |
| 2011 | 399,389 | 127,833,000 |
| 2010 | 392,332 | 128,070,000 |
| 2009 | 384,952 | 128,047,000 |
| 2008 | 377,793 | 128,063,000 |
| 2007 | 370,873 | 128,001,000 |
| 2006 | 364,663 | 127,854,000 |
| 2005 | 358,916 | 127,773,000 |
| 2004 | 352,911 | 127,761,000 |
| 2003 | 346,637 | 127,718,000 |
| 2002 | 340,099 | 127,445,000 |
| 2001 | 333,345 | 127,149,000 |
| 2000 | 326,424 | 126,843,000 |
| 1999 | 319,411 | 126,631,000 |
| 1998 | 312,385 | 126,400,000 |
| 1997 | 305,341 | 126,057,000 |
| 1996 | 298,276 | 125,757,000 |
| 1995 | 291,195 | 125,472,000 |
| 1994 | 284,091 | 125,178,000 |
| 1993 | 276,971 | 124,829,000 |
| 1992 | 269,839 | 124,425,000 |
| 1991 | 262,596 | 123,964,000 |
| 1990 | 255,292 | 123,478,000 |
| 1989 | 248,064 | 123,069,000 |
| 1988 | 240,913 | 122,578,000 |
| 1987 | 233,860 | 122,069,000 |
| 1986 | 226,495 | 121,482,000 |
| 1985 | 218,919 | 120,837,000 |
| 1984 | 211,661 | 120,083,000 |
| 1983 | 204,741 | 119,307,000 |
| 1982 | 198,165 | 118,480,000 |
| 1981 | 191,977 | 117,661,000 |
| 1980 | 186,111 | 116,807,000 |
| 1979 | 180,422 | 115,890,000 |
| 1978 | 174,884 | 114,913,000 |
| 1977 | 169,277 | 113,872,000 |
| 1976 | 163,607 | 112,775,000 |
| 1975 | 158,070 | 111,573,000 |
| 1974 | 152,656 | 110,162,000 |
| 1973 | 147,369 | 108,707,000 |
| 1972 | 142,189 | 107,188,000 |
| 1971 | 137,921 | 105,697,000 |
| 1970 | 135,138 | 103,403,000 |
| 1969 | 131,446 | 102,219,000 |
| 1968 | 126,222 | 101,011,000 |
| 1967 | 121,017 | 99,879,000 |
| 1966 | 115,874 | 98,851,000 |
| 1965 | 110,838 | 97,952,000 |
| 1964 | 105,922 | 96,903,000 |
| 1963 | 101,159 | 95,900,000 |
| 1962 | 96,719 | 94,933,000 |
| 1961 | 92,517 | 94,055,000 |
| 1960 | 88,347 | 93,216,000 |
Data sources: United Nations | World Population Prospects (2026–2100, retrieved 2026-07-08); World Bank | Health (1960–2025, retrieved 2026-07-08).
GeoRank.org/population/brunei/japan | CC BY 
From 2006 to 2016, the population of Brunei increased by 62,901 people (a 17.2% growth), while Japan lost 778,000 people (a 0.61% decline).
For the next 10 years, from 2016 to 2026, Brunei gained 44,032 people (a 10.3% growth), while Japan's population decreased by 4,371,748 people (a 3.44% decline).
Brunei was ranked 169th most populous country in 2006 and is 170th in 2026. Japan was ranked 10th in 2006 and ranked 12th now.
The UN's World Population Prospects forecasts that in 24 years (in 2050) Brunei's population will grow by 10.5% to 521,119 people with a rank change from 170th to 171st. The population of Japan will decrease by 14.1% to 105,400,477 people and rank change from 12th to 17th.
Brunei is projected to reach its peak in 2055 at 523K people, while Japan's population already peaked in 2010 at 128M people and is projected to decrease to 77M people by 2100.
Population growth rate by year
| Year | Growth rate | |
|---|---|---|
|
Brunei
|
Japan
|
|
| 2100 | -0.33% | -0.5% |
| 2099 | -0.32% | -0.49% |
| 2098 | -0.3% | -0.48% |
| 2097 | -0.32% | -0.48% |
| 2096 | -0.3% | -0.48% |
| 2095 | -0.32% | -0.47% |
| 2094 | -0.31% | -0.47% |
| 2093 | -0.32% | -0.47% |
| 2092 | -0.31% | -0.47% |
| 2091 | -0.32% | -0.47% |
| 2090 | -0.34% | -0.47% |
| 2089 | -0.34% | -0.47% |
| 2088 | -0.32% | -0.47% |
| 2087 | -0.31% | -0.48% |
| 2086 | -0.33% | -0.49% |
| 2085 | -0.32% | -0.5% |
| 2084 | -0.34% | -0.5% |
| 2083 | -0.34% | -0.52% |
| 2082 | -0.33% | -0.53% |
| 2081 | -0.32% | -0.55% |
| 2080 | -0.31% | -0.57% |
| 2079 | -0.3% | -0.59% |
| 2078 | -0.32% | -0.62% |
| 2077 | -0.3% | -0.64% |
| 2076 | -0.35% | -0.67% |
| 2075 | -0.33% | -0.69% |
| 2074 | -0.3% | -0.73% |
| 2073 | -0.28% | -0.74% |
| 2072 | -0.24% | -0.76% |
| 2071 | -0.23% | -0.79% |
| 2070 | -0.25% | -0.79% |
| 2069 | -0.26% | -0.8% |
| 2068 | -0.26% | -0.8% |
| 2067 | -0.21% | -0.81% |
| 2066 | -0.19% | -0.81% |
| 2065 | -0.16% | -0.79% |
| 2064 | -0.14% | -0.79% |
| 2063 | -0.1% | -0.78% |
| 2062 | -0.1% | -0.77% |
| 2061 | -0.08% | -0.76% |
| 2060 | -0.07% | -0.75% |
| 2059 | -0.06% | -0.73% |
| 2058 | -0.05% | -0.71% |
| 2057 | -0.009% | -0.7% |
| 2056 | -0.002% | -0.68% |
| 2055 | 0.03% | -0.68% |
| 2054 | 0.04% | -0.65% |
| 2053 | 0.07% | -0.65% |
| 2052 | 0.12% | -0.64% |
| 2051 | 0.15% | -0.64% |
| 2050 | 0.18% | -0.64% |
| 2049 | 0.2% | -0.64% |
| 2048 | 0.22% | -0.64% |
| 2047 | 0.24% | -0.64% |
| 2046 | 0.29% | -0.65% |
| 2045 | 0.28% | -0.65% |
| 2044 | 0.3% | -0.65% |
| 2043 | 0.32% | -0.65% |
| 2042 | 0.36% | -0.66% |
| 2041 | 0.36% | -0.65% |
| 2040 | 0.4% | -0.65% |
| 2039 | 0.46% | -0.65% |
| 2038 | 0.43% | -0.65% |
| 2037 | 0.44% | -0.65% |
| 2036 | 0.48% | -0.65% |
| 2035 | 0.49% | -0.64% |
| 2034 | 0.51% | -0.63% |
| 2033 | 0.51% | -0.63% |
| 2032 | 0.58% | -0.62% |
| 2031 | 0.61% | -0.61% |
| 2030 | 0.62% | -0.6% |
| 2029 | 0.67% | -0.59% |
| 2028 | 0.72% | -0.58% |
| 2027 | 0.72% | -0.56% |
| 2026 | 0.76% | -0.54% |
| 2025 | 0.78% | -0.49% |
| 2024 | 0.82% | -0.43% |
| 2023 | 0.79% | -0.49% |
| 2022 | 0.81% | -0.44% |
| 2021 | 0.96% | -0.46% |
| 2020 | 1.07% | -0.29% |
| 2019 | 1.11% | -0.14% |
| 2018 | 1.16% | -0.13% |
| 2017 | 1.22% | -0.08% |
| 2016 | 1.27% | -0.05% |
| 2015 | 1.31% | -0.11% |
| 2014 | 1.35% | -0.13% |
| 2013 | 1.39% | -0.14% |
| 2012 | 1.54% | -0.16% |
| 2011 | 1.8% | -0.19% |
| 2010 | 1.92% | 0.02% |
| 2009 | 1.89% | -0.01% |
| 2008 | 1.87% | 0.05% |
| 2007 | 1.7% | 0.11% |
| 2006 | 1.6% | 0.06% |
| 2005 | 1.7% | 0.009% |
| 2004 | 1.81% | 0.03% |
| 2003 | 1.92% | 0.21% |
| 2002 | 2.03% | 0.23% |
| 2001 | 2.12% | 0.24% |
| 2000 | 2.2% | 0.17% |
| 1999 | 2.25% | 0.18% |
| 1998 | 2.31% | 0.27% |
| 1997 | 2.37% | 0.24% |
| 1996 | 2.43% | 0.23% |
| 1995 | 2.5% | 0.23% |
| 1994 | 2.57% | 0.28% |
| 1993 | 2.64% | 0.32% |
| 1992 | 2.76% | 0.37% |
| 1991 | 2.86% | 0.39% |
| 1990 | 2.91% | 0.33% |
| 1989 | 2.97% | 0.4% |
| 1988 | 3.02% | 0.42% |
| 1987 | 3.25% | 0.48% |
| 1986 | 3.46% | 0.53% |
| 1985 | 3.43% | 0.63% |
| 1984 | 3.38% | 0.65% |
| 1983 | 3.32% | 0.7% |
| 1982 | 3.22% | 0.7% |
| 1981 | 3.15% | 0.73% |
| 1980 | 3.15% | 0.79% |
| 1979 | 3.17% | 0.85% |
| 1978 | 3.31% | 0.91% |
| 1977 | 3.47% | 0.97% |
| 1976 | 3.5% | 1.08% |
| 1975 | 3.55% | 1.28% |
| 1974 | 3.59% | 1.34% |
| 1973 | 3.64% | 1.42% |
| 1972 | 3.09% | 1.41% |
| 1971 | 2.06% | 2.22% |
| 1970 | 2.81% | 1.16% |
| 1969 | 4.14% | 1.2% |
| 1968 | 4.3% | 1.13% |
| 1967 | 4.44% | 1.04% |
| 1966 | 4.54% | 0.92% |
| 1965 | 4.64% | 1.08% |
| 1964 | 4.71% | 1.05% |
| 1963 | 4.59% | 1.02% |
| 1962 | 4.54% | 0.93% |
| 1961 | 4.72% | 0.9% |
Data sources: United Nations | World Population Prospects (2026–2100, retrieved 2026-07-08); World Bank | Health (1961–2025, retrieved 2026-07-08).
GeoRank.org/population/brunei/japan | CC BY
In 2025, the population of Brunei grew by 0.78%, while Japan's population declined by 0.49%.
Live population counters
|
Brunei
|
Japan
|
|
|---|---|---|
| Current population |
471596
|
122704252
|
| Population rank | 170/197 | 12/197 |
| Percent of world population | 0.006% | 1.48% |
| One net population change |
2.43 hours
|
52 seconds
|
| One birth every |
1.42 hours
|
44.6 seconds
|
| One death every |
3.55 hours
|
19.1 seconds
|
| Daily growth/decline | +10 | -1,667 |
| Annual growth/decline | +3,609 | -608,637 |
| Annual growth/decline rate | +0.78% | -0.49% |
| Population growth rate rank | 113/197 | 183/197 |
| One migration net change every |
1.08 years
|
3.75 minutes
|
| Annual migration change | +0 | +140,579 |
| Net migration rank | 77/196 | 10/196 |
| Foreign-born residents | 119,933 | 3,409,529 |
| Foreign-born residents rank | 124/195 | 19/195 |
| Foreign-born share of population | 25.9% | 2.8% |
| Foreign-born share rank | 21/195 | 120/195 |
Natural population change vs migration
| Year | Population change | |||
|---|---|---|---|---|
|
Brunei
|
Japan
|
|||
| Natural | Migration | Natural | Migration | |
| 2025 | - | 0 | - | 140,579 |
| 2024 | 3,699 | 0 | -942,213 | 153,357 |
| 2023 | 3,837 | 0 | -871,617 | 175,003 |
| 2022 | 3,319 | 0 | -825,825 | 175,003 |
| 2021 | 3,985 | 0 | -640,976 | -34,996 |
| 2020 | 4,188 | 462 | -542,923 | 42,001 |
| 2019 | 4,335 | 456 | -531,858 | 318,190 |
| 2018 | 4,502 | 450 | -456,520 | 320,601 |
| 2017 | 4,685 | 440 | -406,310 | 322,564 |
| 2016 | 4,876 | 415 | -343,106 | 314,732 |
| 2015 | 5,060 | 356 | -292,424 | 168,896 |
| 2014 | 5,206 | 303 | -267,279 | 58,109 |
| 2013 | 5,302 | 285 | -242,146 | 66,449 |
| 2012 | 5,349 | 346 | -229,733 | 67,904 |
| 2011 | 5,242 | 1,399 | -204,533 | 97,720 |
| 2010 | 5,003 | 2,479 | -128,070 | 131,860 |
| 2009 | 4,789 | 2,489 | -76,828 | 125,450 |
| 2008 | 4,624 | 2,409 | -51,225 | 142,605 |
| 2007 | 4,521 | 2,291 | -25,600 | 138,024 |
| 2006 | 4,590 | 1,030 | 12,785 | 130,065 |
| 2005 | 4,703 | 1,163 | -25,554 | 113,017 |
| 2004 | 4,874 | 1,261 | 76,656 | 69,014 |
| 2003 | 5,034 | 1,383 | 114,946 | 74,875 |
| 2002 | 5,169 | 1,499 | 178,423 | 60,864 |
| 2001 | 5,275 | 1,569 | 203,438 | 59,563 |
| 2000 | 5,331 | 1,660 | 228,317 | 23,468 |
| 1999 | 5,388 | 1,639 | 202,610 | 56,901 |
| 1998 | 5,466 | 1,566 | 265,440 | 45,912 |
| 1997 | 5,518 | 1,533 | 277,325 | 43,366 |
| 1996 | 5,606 | 1,464 | 314,392 | 25,030 |
| 1995 | 5,750 | 1,348 | 276,039 | 87,714 |
| 1994 | 5,907 | 1,206 | 363,017 | 154,214 |
| 1993 | 6,045 | 1,082 | 312,073 | 168,836 |
| 1992 | 6,169 | 969 | 360,833 | 170,878 |
| 1991 | 6,259 | 1,087 | 396,685 | 161,331 |
| 1990 | 6,265 | 992 | 407,478 | 124,582 |
| 1989 | 6,202 | 1,002 | 467,662 | 31,202 |
| 1988 | 6,135 | 962 | 527,085 | 51,154 |
| 1987 | 6,017 | 994 | 598,138 | 28,001 |
| 1986 | 5,826 | 1,897 | 631,706 | 27,987 |
| 1985 | 5,620 | 1,808 | 676,687 | -141,323 |
| 1984 | 5,373 | 1,722 | 756,523 | -273,686 |
| 1983 | 5,138 | 1,602 | 775,495 | -269,755 |
| 1982 | 4,931 | 1,475 | 805,664 | -288,550 |
| 1981 | 4,839 | 1,124 | 811,861 | -278,525 |
| 1980 | 4,775 | 995 | 864,372 | -92,314 |
| 1979 | 4,717 | 899 | 950,298 | -57,692 |
| 1978 | 4,668 | 791 | 1,011,234 | -47,996 |
| 1977 | 4,594 | 1,157 | 1,070,397 | -49,082 |
| 1976 | 4,518 | 1,080 | 1,127,750 | -34,976 |
| 1975 | 4,431 | 1,047 | 1,204,989 | 107 |
| 1974 | 4,334 | 1,011 | 1,332,960 | -10,145 |
| 1973 | 4,216 | 1,007 | 1,391,449 | -34,674 |
| 1972 | 4,085 | 1,053 | 1,372,006 | -73,980 |
| 1971 | 3,880 | -476 | 1,331,782 | -107,778 |
| 1970 | 3,694 | -1,538 | 1,230,496 | 33,731 |
| 1969 | 3,618 | 1,608 | 1,195,962 | 49,447 |
| 1968 | 3,551 | 1,677 | 1,191,930 | 43,593 |
| 1967 | 3,477 | 1,703 | 1,258,475 | 29,632 |
| 1966 | 3,403 | 1,697 | 682,072 | 68,934 |
| 1965 | 3,326 | 1,655 | 1,126,448 | -50,667 |
| 1964 | 3,264 | 1,595 | 1,046,553 | -100,696 |
| 1963 | 3,195 | 1,469 | 987,770 | -100,742 |
| 1962 | 3,128 | 1,088 | 901,864 | -57,075 |
| 1961 | 3,175 | 1,014 | 893,522 | -58,882 |
| 1960 | 3,168 | 982 | 894,874 | -150,371 |
Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08).
GeoRank.org/population/brunei/japan | CC BY
Over the last 10 years, 94.3% of the population change in Brunei is from natural causes (a gain of 42,486 people) and 5.72% is from migration (a gain of 2,579 people). In Japan 75% is from natural causes (a loss of 5,853,772 people) and 25% is from migration (a gain of 1,955,351 people).
As of 2024, 119,933 residents or 25.9% of the population were not native-born in Brunei, compared to 3,409,529 people or 2.8% in Japan.
Biggest cities by population
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Population differences between Brunei and Japan
|
Brunei
|
Japan
|
|
|---|---|---|
| Life expectancy | 75.8 years | 85.1 years |
| Average age | 34.3 years | 48.5 years |
| Median age | 33.7 years | 50.8 years |
| Male:Female ratio | 53.1:46.9 | 48.8:51.2 |
| Fertility rate | 1.73 births per woman | 1.15 births per woman |
| Population density | 230.9 ppl/mi² | 872 ppl/mi² |
Population map with other countries
Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08); United Nations | World Population Prospects (1960–2026, retrieved 2026-07-08); U.S. Census Bureau (1960–2025, retrieved 2026-07-08); Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08).
GeoRank.org/population/brunei/japan | CC BY
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Data sources:
- World Bank | Health (1960–2025, retrieved 2026-07-08)
- United Nations | World Population Prospects (1960–2100, retrieved 2026-07-08)
- U.S. Census Bureau (1960–2025, retrieved 2026-07-08)
- Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08)
- Wikidata (2026, retrieved 2026-07-08)
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