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

Updated on by Georank

The latest officially reported population of the Congo was 6,484,437 in 2025 vs 103,742 people in Tonga in 2025. In 2026, based on the adjusted UN estimation, the current Congo's population is 6,718,789 people compared to 103,283 in Tonga.

Population statistics:

  • The Congo's population is 65.1 times bigger than Tonga's.
  • The Congo is ranked the 109th most populous country in the world, while Tonga is the 183rd.
  • The countries together account for 0.08% of the world: 0.08% for the Congo vs 0.001% for Tonga.
  • For the last 10 years, the Congo has had an average growth rate of +2.44% per year vs -0.25% in Tonga.
  • Since 2006, the population of the Congo has increased from 3.84M people to 6.72M (75.1% growth), while Tonga has declined from 106K to 103K (2.8% decline).

Congo vs Tonga: population by year and forecast

Congo
Factual

Projection
Tonga
Factual

Projection
1x
Year Population
Congo Tonga
2100 20,194,267 117,617
2099 20,053,234 117,585
2098 19,906,909 117,530
2097 19,760,110 117,492
2096 19,610,521 117,461
2095 19,459,493 117,383
2094 19,306,835 117,290
2093 19,151,289 117,207
2092 18,990,577 117,097
2091 18,828,222 116,983
2090 18,663,146 116,838
2089 18,497,842 116,682
2088 18,325,571 116,481
2087 18,153,731 116,277
2086 17,979,773 116,088
2085 17,807,843 115,872
2084 17,631,386 115,628
2083 17,453,221 115,336
2082 17,270,773 115,041
2081 17,093,270 114,752
2080 16,910,570 114,424
2079 16,728,955 114,074
2078 16,542,829 113,710
2077 16,357,926 113,349
2076 16,173,005 112,945
2075 15,981,904 112,565
2074 15,791,626 112,179
2073 15,597,321 111,790
2072 15,402,110 111,377
2071 15,205,567 110,963
2070 15,009,147 110,576
2069 14,808,250 110,209
2068 14,609,790 109,825
2067 14,412,802 109,446
2066 14,211,022 109,062
2065 14,010,661 108,736
2064 13,810,933 108,377
2063 13,609,626 108,033
2062 13,405,080 107,710
2061 13,204,362 107,396
2060 13,004,957 107,117
2059 12,806,162 106,842
2058 12,609,233 106,589
2057 12,413,395 106,345
2056 12,217,406 106,130
2055 12,022,740 105,915
2054 11,824,813 105,698
2053 11,627,983 105,486
2052 11,431,875 105,286
2051 11,235,188 105,079
2050 11,039,311 104,844
2049 10,844,973 104,636
2048 10,650,230 104,387
2047 10,453,401 104,154
2046 10,258,550 103,852
2045 10,063,886 103,548
2044 9,871,213 103,215
2043 9,676,000 102,934
2042 9,482,485 102,692
2041 9,287,235 102,447
2040 9,096,577 102,228
2039 8,907,177 102,061
2038 8,719,250 101,835
2037 8,532,935 101,707
2036 8,348,719 101,627
2035 8,166,676 101,580
2034 7,985,679 101,571
2033 7,805,748 101,591
2032 7,628,440 101,633
2031 7,453,476 101,764
2030 7,284,111 101,928
2029 7,117,929 102,181
2028 6,955,268 102,494
2027 6,794,778 102,841
2026 6,638,532 103,283
2025 6,484,437 103,742
2024 6,332,961 104,175
2023 6,182,885 104,597
2022 6,035,104 105,042
2021 5,892,183 105,490
2020 5,752,791 105,704
2019 5,616,661 105,669
2018 5,483,118 105,567
2017 5,351,011 105,356
2016 5,222,536 105,524
2015 5,097,581 106,095
2014 4,975,880 106,609
2013 4,857,099 107,078
2012 4,740,450 107,460
2011 4,609,724 107,570
2010 4,462,290 107,400
2009 4,281,219 107,203
2008 4,113,517 107,020
2007 3,980,430 106,726
2006 3,837,409 106,253
2005 3,696,393 105,671
2004 3,565,554 105,071
2003 3,445,753 104,464
2002 3,350,771 103,874
2001 3,272,537 103,288
2000 3,151,345 102,677
1999 3,032,874 102,046
1998 2,952,061 101,388
1997 2,887,862 100,674
1996 2,826,785 100,275
1995 2,749,461 100,225
1994 2,673,144 100,166
1993 2,595,124 100,103
1992 2,519,465 100,022
1991 2,449,229 99,895
1990 2,380,560 99,700
1989 2,313,558 99,403
1988 2,247,653 98,969
1987 2,183,473 98,376
1986 2,120,602 98,010
1985 2,059,311 97,984
1984 1,999,528 97,990
1983 1,950,321 97,998
1982 1,910,430 97,980
1981 1,869,759 97,909
1980 1,828,985 97,769
1979 1,788,524 97,544
1978 1,748,089 97,204
1977 1,707,568 96,725
1976 1,667,225 95,325
1975 1,627,032 93,017
1974 1,582,301 90,683
1973 1,533,680 88,805
1972 1,486,468 87,356
1971 1,441,039 85,896
1970 1,397,638 84,401
1969 1,356,182 82,885
1968 1,316,519 81,353
1967 1,278,691 79,814
1966 1,242,534 78,002
1965 1,207,880 75,924
1964 1,174,816 73,879
1963 1,143,263 71,885
1962 1,113,175 69,940
1961 1,084,389 68,037
1960 1,056,732 66,170

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/tonga | CC BY

From 2006 to 2016, the population of the Congo increased by 1,385,127 people (a 36.1% growth), while Tonga lost 729 people (a 0.69% decline).

For the next 10 years, from 2016 to 2026, the Congo gained 1,496,253 people (a 28.6% growth), while Tonga's population decreased by 2,241 people (a 2.12% decline).

The Congo was ranked 125th most populous country in 2006 and is 109th in 2026. Tonga was ranked 182nd in 2006 and ranked 183rd 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 Tonga will increase by 1.51% to 104,844 people and will still be ranked 183rd.

The Congo is projected to reach its peak in 2100 at 20.2M people compared to the peak of 118K people in 2100 for Tonga.

Population growth rate by year

Congo
Factual

Projection
Tonga
Factual

Projection
1x
Year Growth rate
Congo Tonga
2100 0.7% 0.03%
2099 0.74% 0.05%
2098 0.74% 0.03%
2097 0.76% 0.03%
2096 0.78% 0.07%
2095 0.79% 0.08%
2094 0.81% 0.07%
2093 0.85% 0.09%
2092 0.86% 0.1%
2091 0.88% 0.12%
2090 0.89% 0.13%
2089 0.94% 0.17%
2088 0.95% 0.18%
2087 0.97% 0.16%
2086 0.97% 0.19%
2085 1% 0.21%
2084 1.02% 0.25%
2083 1.06% 0.26%
2082 1.04% 0.25%
2081 1.08% 0.29%
2080 1.09% 0.31%
2079 1.13% 0.32%
2078 1.13% 0.32%
2077 1.14% 0.36%
2076 1.2% 0.34%
2075 1.2% 0.34%
2074 1.25% 0.35%
2073 1.27% 0.37%
2072 1.29% 0.37%
2071 1.31% 0.35%
2070 1.36% 0.33%
2069 1.36% 0.35%
2068 1.37% 0.35%
2067 1.42% 0.35%
2066 1.43% 0.3%
2065 1.45% 0.33%
2064 1.48% 0.32%
2063 1.53% 0.3%
2062 1.52% 0.29%
2061 1.53% 0.26%
2060 1.55% 0.26%
2059 1.56% 0.24%
2058 1.58% 0.23%
2057 1.6% 0.2%
2056 1.62% 0.2%
2055 1.67% 0.2%
2054 1.69% 0.2%
2053 1.72% 0.19%
2052 1.75% 0.2%
2051 1.77% 0.22%
2050 1.79% 0.2%
2049 1.83% 0.24%
2048 1.88% 0.22%
2047 1.9% 0.29%
2046 1.93% 0.29%
2045 1.95% 0.32%
2044 2.02% 0.27%
2043 2.04% 0.24%
2042 2.1% 0.24%
2041 2.1% 0.21%
2040 2.13% 0.16%
2039 2.16% 0.22%
2038 2.18% 0.13%
2037 2.21% 0.08%
2036 2.23% 0.05%
2035 2.27% 0.009%
2034 2.31% -0.02%
2033 2.32% -0.04%
2032 2.35% -0.13%
2031 2.33% -0.16%
2030 2.33% -0.25%
2029 2.34% -0.31%
2028 2.36% -0.34%
2027 2.35% -0.43%
2026 2.38% -0.44%
2025 2.39% -0.42%
2024 2.43% -0.4%
2023 2.45% -0.42%
2022 2.43% -0.42%
2021 2.42% -0.2%
2020 2.42% 0.03%
2019 2.44% 0.1%
2018 2.47% 0.2%
2017 2.46% -0.16%
2016 2.45% -0.54%
2015 2.45% -0.48%
2014 2.45% -0.44%
2013 2.46% -0.36%
2012 2.84% -0.1%
2011 3.3% 0.16%
2010 4.23% 0.18%
2009 4.08% 0.17%
2008 3.34% 0.28%
2007 3.73% 0.45%
2006 3.81% 0.55%
2005 3.67% 0.57%
2004 3.48% 0.58%
2003 2.83% 0.57%
2002 2.39% 0.57%
2001 3.85% 0.6%
2000 3.91% 0.62%
1999 2.74% 0.65%
1998 2.22% 0.71%
1997 2.16% 0.4%
1996 2.81% 0.05%
1995 2.85% 0.06%
1994 3.01% 0.06%
1993 3% 0.08%
1992 2.87% 0.13%
1991 2.88% 0.2%
1990 2.9% 0.3%
1989 2.93% 0.44%
1988 2.94% 0.6%
1987 2.96% 0.37%
1986 2.98% 0.03%
1985 2.99% -0.006%
1984 2.52% -0.008%
1983 2.09% 0.02%
1982 2.18% 0.07%
1981 2.23% 0.14%
1980 2.26% 0.23%
1979 2.31% 0.35%
1978 2.37% 0.5%
1977 2.42% 1.47%
1976 2.47% 2.48%
1975 2.83% 2.57%
1974 3.17% 2.11%
1973 3.18% 1.66%
1972 3.15% 1.7%
1971 3.11% 1.77%
1970 3.06% 1.83%
1969 3.01% 1.88%
1968 2.96% 1.93%
1967 2.91% 2.32%
1966 2.87% 2.74%
1965 2.81% 2.77%
1964 2.76% 2.77%
1963 2.7% 2.78%
1962 2.65% 2.8%
1961 2.62% 2.82%

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/tonga | CC BY

In 2025, the population of the Congo grew by 2.39%, while Tonga's population declined by 0.42%.

Live population counters

Congo Tonga
Current population
6718789
103283
Population rank 109/197 183/197
Percent of world population 0.08% 0.001%
One net population change
3.48 minutes
20.3 hours
One birth every
2.73 minutes
3.65 hours
One death every
13.3 minutes
13.1 hours
Daily growth/decline +415 -1
Annual growth/decline +151,476 -433
Annual growth/decline rate +2.39% -0.42%
Population growth rate rank 31/197 181/197
One migration net change every
2.93 hours
4.09 hours
Annual migration change -2,999 -2,150
Net migration rank 108/196 99/196
Foreign-born residents 385,589 3,581
Foreign-born residents rank 91/195 187/195
Foreign-born share of population 6.1% 3.4%
Foreign-born share rank 86/195 113/195

Natural population change vs migration

Congo
Natural

Migration
Tonga
Natural

Migration
1x
Year Population change
Congo Tonga
Natural Migration Natural Migration
2025 - -2,999 - -2,150
2024 153,150 -2,491 1,729 -2,149
2023 150,486 -995 1,744 -2,173
2022 147,076 -995 1,772 -2,218
2021 144,241 -4,476 1,773 -2,220
2020 143,492 -4,472 1,816 -1,807
2019 139,513 -6,268 1,841 -1,778
2018 142,704 -8,856 1,873 -1,723
2017 141,973 -11,601 1,912 -1,642
2016 141,358 -14,783 1,989 -2,591
2015 141,539 -18,207 2,064 -2,610
2014 141,674 -21,598 2,135 -2,622
2013 142,080 -24,605 2,199 -2,637
2012 142,464 -26,643 2,255 -2,578
2011 140,371 5,262 2,298 -2,198
2010 136,908 12,318 2,332 -2,097
2009 126,904 86,014 2,358 -2,204
2008 120,711 1,774 2,397 -2,177
2007 112,459 31,239 2,423 -2,057
2006 106,876 35,475 2,459 -1,875
2005 101,344 38,337 2,495 -1,906
2004 96,577 25,412 2,478 -1,876
2003 91,326 26,280 2,448 -1,844
2002 88,497 -16,140 2,396 -1,815
2001 84,876 -764 2,358 -1,766
2000 78,491 79,780 2,346 -1,721
1999 76,204 2,470 2,352 -1,710
1998 72,450 10,500 2,344 -1,665
1997 66,149 -20,704 2,332 -1,589
1996 75,628 1,085 2,393 -2,338
1995 74,189 3,747 2,476 -2,422
1994 72,857 1,850 2,547 -2,484
1993 71,119 10,218 2,594 -2,532
1992 69,973 0 2,622 -2,524
1991 68,534 1,966 2,637 -2,484
1990 67,241 -395 2,641 -2,409
1989 65,944 1,214 2,644 -2,280
1988 64,629 22 2,649 -2,138
1987 63,183 525 2,646 -1,970
1986 61,669 367 2,704 -2,650
1985 60,359 182 2,762 -2,775
1984 59,028 0 2,814 -2,823
1983 58,120 -18,720 2,840 -2,840
1982 57,036 -16,664 2,853 -2,814
1981 56,603 -15,630 2,882 -2,778
1980 55,550 -14,972 2,885 -2,708
1979 54,723 -14,378 2,884 -2,604
1978 53,885 -13,356 2,862 -2,457
1977 53,179 -12,673 2,822 -2,273
1976 52,148 -11,971 2,769 -523
1975 51,155 -10,944 2,709 -346
1974 49,563 -312 2,650 -344
1973 48,017 -22 2,617 -1,168
1972 46,427 0 2,605 -1,153
1971 44,431 0 2,611 -1,138
1970 42,374 0 2,628 -1,122
1969 40,532 0 2,632 -1,101
1968 38,786 0 2,614 -1,078
1967 36,866 0 2,603 -1,060
1966 35,452 0 2,550 -465
1965 33,865 0 2,498 -426
1964 32,270 0 2,445 -428
1963 30,832 0 2,394 -426
1962 29,342 0 2,343 -420
1961 28,220 0 2,284 -401
1960 27,094 0 2,230 -384

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

GeoRank.org/population/congo/tonga | 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 Tonga 47% is from natural causes (a gain of 18,513 people) and 53% is from migration (a loss of 20,911 people).

As of 2024, 385,589 residents or 6.1% of the population were not native-born in the Congo, compared to 3,581 people or 3.4% in Tonga.

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
Tonga
City Population
Nukualofa 23.2K
Mua 5K

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/tonga | 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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