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Population in the Congo compared to Japan: Trends, Charts, Rankings

Updated on by Georank

The latest officially reported population of the Congo was 6,484,437 in 2025 vs 123,366,734 people in Japan in 2025. In 2026, based on the adjusted UN estimation, the current Congo's population is 6,718,789 people compared to 122,704,252 in Japan.

Population statistics:

  • Japan's population is 18.3 times bigger than the Congo's.
  • The Congo is ranked the 109th most populous country in the world, while Japan is the 12th.
  • The countries together account for 1.56% of the world: 0.08% for the Congo vs 1.48% for Japan.
  • For the last 10 years, the Congo has had an average growth rate of +2.44% per year vs -0.28% in Japan.
  • Since 2006, the population of the Congo has increased from 3.84M people to 6.72M (75.1% growth), while Japan has declined from 128M to 123M (4.03% decline).

Congo vs Japan: population by year and forecast

Congo
Factual

Projection
Japan
Factual

Projection
1x
Year Population
Congo Japan
2100 20,194,267 76,995,942
2099 20,053,234 77,380,486
2098 19,906,909 77,759,557
2097 19,760,110 78,135,569
2096 19,610,521 78,515,892
2095 19,459,493 78,892,606
2094 19,306,835 79,267,768
2093 19,151,289 79,645,584
2092 18,990,577 80,025,578
2091 18,828,222 80,401,222
2090 18,663,146 80,778,500
2089 18,497,842 81,158,413
2088 18,325,571 81,539,639
2087 18,153,731 81,926,401
2086 17,979,773 82,322,612
2085 17,807,843 82,727,738
2084 17,631,386 83,141,354
2083 17,453,221 83,562,394
2082 17,270,773 83,998,809
2081 17,093,270 84,447,888
2080 16,910,570 84,918,455
2079 16,728,955 85,406,042
2078 16,542,829 85,916,840
2077 16,357,926 86,453,316
2076 16,173,005 87,012,155
2075 15,981,904 87,597,053
2074 15,791,626 88,209,803
2073 15,597,321 88,854,316
2072 15,402,110 89,519,055
2071 15,205,567 90,204,314
2070 15,009,147 90,919,143
2069 14,808,250 91,645,589
2068 14,609,790 92,388,299
2067 14,412,802 93,133,993
2066 14,211,022 93,889,902
2065 14,010,661 94,654,259
2064 13,810,933 95,412,429
2063 13,609,626 96,169,244
2062 13,405,080 96,924,236
2061 13,204,362 97,675,525
2060 13,004,957 98,422,553
2059 12,806,162 99,166,038
2058 12,609,233 99,890,950
2057 12,413,395 100,607,740
2056 12,217,406 101,318,164
2055 12,022,740 102,012,184
2054 11,824,813 102,706,063
2053 11,627,983 103,381,833
2052 11,431,875 104,059,800
2051 11,235,188 104,729,745
2050 11,039,311 105,400,477
2049 10,844,973 106,076,354
2048 10,650,230 106,754,699
2047 10,453,401 107,442,881
2046 10,258,550 108,139,155
2045 10,063,886 108,844,934
2044 9,871,213 109,553,441
2043 9,676,000 110,269,851
2042 9,482,485 110,992,599
2041 9,287,235 111,729,216
2040 9,096,577 112,463,507
2039 8,907,177 113,200,859
2038 8,719,250 113,940,856
2037 8,532,935 114,687,611
2036 8,348,719 115,436,359
2035 8,166,676 116,187,949
2034 7,985,679 116,936,734
2033 7,805,748 117,678,572
2032 7,628,440 118,419,247
2031 7,453,476 119,153,646
2030 7,284,111 119,882,512
2029 7,117,929 120,600,781
2028 6,955,268 121,314,239
2027 6,794,778 122,015,984
2026 6,638,532 122,704,252
2025 6,484,437 123,366,734
2024 6,332,961 123,975,371
2023 6,182,885 124,516,650
2022 6,035,104 125,124,989
2021 5,892,183 125,681,593
2020 5,752,791 126,261,000
2019 5,616,661 126,633,000
2018 5,483,118 126,811,000
2017 5,351,011 126,972,000
2016 5,222,536 127,076,000
2015 5,097,581 127,141,000
2014 4,975,880 127,276,000
2013 4,857,099 127,445,000
2012 4,740,450 127,629,000
2011 4,609,724 127,833,000
2010 4,462,290 128,070,000
2009 4,281,219 128,047,000
2008 4,113,517 128,063,000
2007 3,980,430 128,001,000
2006 3,837,409 127,854,000
2005 3,696,393 127,773,000
2004 3,565,554 127,761,000
2003 3,445,753 127,718,000
2002 3,350,771 127,445,000
2001 3,272,537 127,149,000
2000 3,151,345 126,843,000
1999 3,032,874 126,631,000
1998 2,952,061 126,400,000
1997 2,887,862 126,057,000
1996 2,826,785 125,757,000
1995 2,749,461 125,472,000
1994 2,673,144 125,178,000
1993 2,595,124 124,829,000
1992 2,519,465 124,425,000
1991 2,449,229 123,964,000
1990 2,380,560 123,478,000
1989 2,313,558 123,069,000
1988 2,247,653 122,578,000
1987 2,183,473 122,069,000
1986 2,120,602 121,482,000
1985 2,059,311 120,837,000
1984 1,999,528 120,083,000
1983 1,950,321 119,307,000
1982 1,910,430 118,480,000
1981 1,869,759 117,661,000
1980 1,828,985 116,807,000
1979 1,788,524 115,890,000
1978 1,748,089 114,913,000
1977 1,707,568 113,872,000
1976 1,667,225 112,775,000
1975 1,627,032 111,573,000
1974 1,582,301 110,162,000
1973 1,533,680 108,707,000
1972 1,486,468 107,188,000
1971 1,441,039 105,697,000
1970 1,397,638 103,403,000
1969 1,356,182 102,219,000
1968 1,316,519 101,011,000
1967 1,278,691 99,879,000
1966 1,242,534 98,851,000
1965 1,207,880 97,952,000
1964 1,174,816 96,903,000
1963 1,143,263 95,900,000
1962 1,113,175 94,933,000
1961 1,084,389 94,055,000
1960 1,056,732 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/congo/japan | CC BY

From 2006 to 2016, the population of the Congo increased by 1,385,127 people (a 36.1% growth), while Japan lost 778,000 people (a 0.61% decline).

For the next 10 years, from 2016 to 2026, the Congo gained 1,496,253 people (a 28.6% growth), while Japan's population decreased by 4,371,748 people (a 3.44% decline).

The Congo was ranked 125th most populous country in 2006 and is 109th 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) the Congo's population will grow by 64.3% to 11,039,311 people with a rank change from 109th to 95th. The population of Japan will decrease by 14.1% to 105,400,477 people and rank change from 12th to 17th.

The Congo is projected to reach its peak in 2100 at 20.2M 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

Congo
Factual

Projection
Japan
Factual

Projection
1x
Year Growth rate
Congo Japan
2100 0.7% -0.5%
2099 0.74% -0.49%
2098 0.74% -0.48%
2097 0.76% -0.48%
2096 0.78% -0.48%
2095 0.79% -0.47%
2094 0.81% -0.47%
2093 0.85% -0.47%
2092 0.86% -0.47%
2091 0.88% -0.47%
2090 0.89% -0.47%
2089 0.94% -0.47%
2088 0.95% -0.47%
2087 0.97% -0.48%
2086 0.97% -0.49%
2085 1% -0.5%
2084 1.02% -0.5%
2083 1.06% -0.52%
2082 1.04% -0.53%
2081 1.08% -0.55%
2080 1.09% -0.57%
2079 1.13% -0.59%
2078 1.13% -0.62%
2077 1.14% -0.64%
2076 1.2% -0.67%
2075 1.2% -0.69%
2074 1.25% -0.73%
2073 1.27% -0.74%
2072 1.29% -0.76%
2071 1.31% -0.79%
2070 1.36% -0.79%
2069 1.36% -0.8%
2068 1.37% -0.8%
2067 1.42% -0.81%
2066 1.43% -0.81%
2065 1.45% -0.79%
2064 1.48% -0.79%
2063 1.53% -0.78%
2062 1.52% -0.77%
2061 1.53% -0.76%
2060 1.55% -0.75%
2059 1.56% -0.73%
2058 1.58% -0.71%
2057 1.6% -0.7%
2056 1.62% -0.68%
2055 1.67% -0.68%
2054 1.69% -0.65%
2053 1.72% -0.65%
2052 1.75% -0.64%
2051 1.77% -0.64%
2050 1.79% -0.64%
2049 1.83% -0.64%
2048 1.88% -0.64%
2047 1.9% -0.64%
2046 1.93% -0.65%
2045 1.95% -0.65%
2044 2.02% -0.65%
2043 2.04% -0.65%
2042 2.1% -0.66%
2041 2.1% -0.65%
2040 2.13% -0.65%
2039 2.16% -0.65%
2038 2.18% -0.65%
2037 2.21% -0.65%
2036 2.23% -0.65%
2035 2.27% -0.64%
2034 2.31% -0.63%
2033 2.32% -0.63%
2032 2.35% -0.62%
2031 2.33% -0.61%
2030 2.33% -0.6%
2029 2.34% -0.59%
2028 2.36% -0.58%
2027 2.35% -0.56%
2026 2.38% -0.54%
2025 2.39% -0.49%
2024 2.43% -0.43%
2023 2.45% -0.49%
2022 2.43% -0.44%
2021 2.42% -0.46%
2020 2.42% -0.29%
2019 2.44% -0.14%
2018 2.47% -0.13%
2017 2.46% -0.08%
2016 2.45% -0.05%
2015 2.45% -0.11%
2014 2.45% -0.13%
2013 2.46% -0.14%
2012 2.84% -0.16%
2011 3.3% -0.19%
2010 4.23% 0.02%
2009 4.08% -0.01%
2008 3.34% 0.05%
2007 3.73% 0.11%
2006 3.81% 0.06%
2005 3.67% 0.009%
2004 3.48% 0.03%
2003 2.83% 0.21%
2002 2.39% 0.23%
2001 3.85% 0.24%
2000 3.91% 0.17%
1999 2.74% 0.18%
1998 2.22% 0.27%
1997 2.16% 0.24%
1996 2.81% 0.23%
1995 2.85% 0.23%
1994 3.01% 0.28%
1993 3% 0.32%
1992 2.87% 0.37%
1991 2.88% 0.39%
1990 2.9% 0.33%
1989 2.93% 0.4%
1988 2.94% 0.42%
1987 2.96% 0.48%
1986 2.98% 0.53%
1985 2.99% 0.63%
1984 2.52% 0.65%
1983 2.09% 0.7%
1982 2.18% 0.7%
1981 2.23% 0.73%
1980 2.26% 0.79%
1979 2.31% 0.85%
1978 2.37% 0.91%
1977 2.42% 0.97%
1976 2.47% 1.08%
1975 2.83% 1.28%
1974 3.17% 1.34%
1973 3.18% 1.42%
1972 3.15% 1.41%
1971 3.11% 2.22%
1970 3.06% 1.16%
1969 3.01% 1.2%
1968 2.96% 1.13%
1967 2.91% 1.04%
1966 2.87% 0.92%
1965 2.81% 1.08%
1964 2.76% 1.05%
1963 2.7% 1.02%
1962 2.65% 0.93%
1961 2.62% 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/congo/japan | CC BY

In 2025, the population of the Congo grew by 2.39%, while Japan's population declined by 0.49%.

Live population counters

Congo Japan
Current population
6718789
122704252
Population rank 109/197 12/197
Percent of world population 0.08% 1.48%
One net population change
3.48 minutes
52 seconds
One birth every
2.73 minutes
44.6 seconds
One death every
13.3 minutes
19.1 seconds
Daily growth/decline +415 -1,667
Annual growth/decline +151,476 -608,637
Annual growth/decline rate +2.39% -0.49%
Population growth rate rank 31/197 183/197
One migration net change every
2.93 hours
3.75 minutes
Annual migration change -2,999 +140,579
Net migration rank 108/196 10/196
Foreign-born residents 385,589 3,409,529
Foreign-born residents rank 91/195 19/195
Foreign-born share of population 6.1% 2.8%
Foreign-born share rank 86/195 120/195

Natural population change vs migration

Congo
Natural

Migration
Japan
Natural

Migration
1x
Year Population change
Congo Japan
Natural Migration Natural Migration
2025 - -2,999 - 140,579
2024 153,150 -2,491 -942,213 153,357
2023 150,486 -995 -871,617 175,003
2022 147,076 -995 -825,825 175,003
2021 144,241 -4,476 -640,976 -34,996
2020 143,492 -4,472 -542,923 42,001
2019 139,513 -6,268 -531,858 318,190
2018 142,704 -8,856 -456,520 320,601
2017 141,973 -11,601 -406,310 322,564
2016 141,358 -14,783 -343,106 314,732
2015 141,539 -18,207 -292,424 168,896
2014 141,674 -21,598 -267,279 58,109
2013 142,080 -24,605 -242,146 66,449
2012 142,464 -26,643 -229,733 67,904
2011 140,371 5,262 -204,533 97,720
2010 136,908 12,318 -128,070 131,860
2009 126,904 86,014 -76,828 125,450
2008 120,711 1,774 -51,225 142,605
2007 112,459 31,239 -25,600 138,024
2006 106,876 35,475 12,785 130,065
2005 101,344 38,337 -25,554 113,017
2004 96,577 25,412 76,656 69,014
2003 91,326 26,280 114,946 74,875
2002 88,497 -16,140 178,423 60,864
2001 84,876 -764 203,438 59,563
2000 78,491 79,780 228,317 23,468
1999 76,204 2,470 202,610 56,901
1998 72,450 10,500 265,440 45,912
1997 66,149 -20,704 277,325 43,366
1996 75,628 1,085 314,392 25,030
1995 74,189 3,747 276,039 87,714
1994 72,857 1,850 363,017 154,214
1993 71,119 10,218 312,073 168,836
1992 69,973 0 360,833 170,878
1991 68,534 1,966 396,685 161,331
1990 67,241 -395 407,478 124,582
1989 65,944 1,214 467,662 31,202
1988 64,629 22 527,085 51,154
1987 63,183 525 598,138 28,001
1986 61,669 367 631,706 27,987
1985 60,359 182 676,687 -141,323
1984 59,028 0 756,523 -273,686
1983 58,120 -18,720 775,495 -269,755
1982 57,036 -16,664 805,664 -288,550
1981 56,603 -15,630 811,861 -278,525
1980 55,550 -14,972 864,372 -92,314
1979 54,723 -14,378 950,298 -57,692
1978 53,885 -13,356 1,011,234 -47,996
1977 53,179 -12,673 1,070,397 -49,082
1976 52,148 -11,971 1,127,750 -34,976
1975 51,155 -10,944 1,204,989 107
1974 49,563 -312 1,332,960 -10,145
1973 48,017 -22 1,391,449 -34,674
1972 46,427 0 1,372,006 -73,980
1971 44,431 0 1,331,782 -107,778
1970 42,374 0 1,230,496 33,731
1969 40,532 0 1,195,962 49,447
1968 38,786 0 1,191,930 43,593
1967 36,866 0 1,258,475 29,632
1966 35,452 0 682,072 68,934
1965 33,865 0 1,126,448 -50,667
1964 32,270 0 1,046,553 -100,696
1963 30,832 0 987,770 -100,742
1962 29,342 0 901,864 -57,075
1961 28,220 0 893,522 -58,882
1960 27,094 0 894,874 -150,371

Data sources: World Bank | Health (1960–2025, retrieved 2026-07-08).

GeoRank.org/population/congo/japan | CC BY

Over the last 10 years, 95.2% of the population change in the Congo is from natural causes (a gain of 1,445,532 people) and 4.82% is from migration (a loss of 73,144 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, 385,589 residents or 6.1% of the population were not native-born in the Congo, compared to 3,409,529 people or 2.8% in Japan.

Biggest cities by population

Congo
City Population
Brazzaville 2.15M
Pointe-Noire 1.42M
Kayes 127K
Madingou 36.2K
Gamboma 26.1K
Kinkala 12.1K
Japan
City Population
Tokyo 14.3M
Yokohama 3.76M
Osaka 2.75M
Nagoya 2.33M
Sapporo 1.96M
Fukuoka 1.6M
Kawasaki 1.54M
Kobe 1.52M
Kyoto 1.46M
Saitama 1.33M

Compare countries by 7 more topics

Population map with other countries

1x

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/congo/japan | CC BY

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Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-07-08)
  2. United Nations | World Population Prospects (1960–2100, retrieved 2026-07-08)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-07-08)
  4. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-07-08)
  5. Wikidata (2026, retrieved 2026-07-08)

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