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Population in Tonga compared to the United Kingdom: Trends, Charts, Rankings

Updated on by Georank

The latest officially reported population of Tonga was 103,742 in 2025 vs 69,487,000 people in the United Kingdom in 2025. In 2026, based on the adjusted UN estimation, the current Tonga's population is 103,283 people compared to 70,071,289 in the United Kingdom.

Population statistics:

  • The United Kingdom's population is 678 times bigger than Tonga's.
  • Tonga is ranked the 183rd most populous country in the world, while the United Kingdom is the 22nd.
  • The countries together account for 0.84% of the world: 0.001% for Tonga vs 0.84% for the United Kingdom.
  • For the last 10 years, Tonga has had an average growth rate of -0.25% per year vs +0.66% in the United Kingdom.
  • Since 2006, the population of Tonga has decreased from 106K people to 103K (2.8% decline), while the United Kingdom has grown from 60.8M to 70.1M (15.2% growth).

Tonga vs United Kingdom: population by year and forecast

Tonga
Factual

Projection
United Kingdom
Factual

Projection
1x
Year Population
Tonga United Kingdom
2100 117,617 74,517,005
2099 117,585 74,647,273
2098 117,530 74,766,073
2097 117,492 74,879,923
2096 117,461 74,991,940
2095 117,383 75,102,041
2094 117,290 75,198,597
2093 117,207 75,296,704
2092 117,097 75,390,038
2091 116,983 75,480,137
2090 116,838 75,566,962
2089 116,682 75,649,353
2088 116,481 75,721,067
2087 116,277 75,791,990
2086 116,088 75,859,854
2085 115,872 75,918,647
2084 115,628 75,969,065
2083 115,336 76,018,614
2082 115,041 76,059,464
2081 114,752 76,086,593
2080 114,424 76,118,679
2079 114,074 76,147,352
2078 113,710 76,165,841
2077 113,349 76,183,437
2076 112,945 76,185,828
2075 112,565 76,198,349
2074 112,179 76,209,676
2073 111,790 76,218,781
2072 111,377 76,211,187
2071 110,963 76,200,495
2070 110,576 76,190,801
2069 110,209 76,184,140
2068 109,825 76,183,288
2067 109,446 76,175,881
2066 109,062 76,168,987
2065 108,736 76,168,193
2064 108,377 76,165,129
2063 108,033 76,165,534
2062 107,710 76,158,910
2061 107,396 76,156,587
2060 107,117 76,157,104
2059 106,842 76,157,593
2058 106,589 76,139,384
2057 106,345 76,119,478
2056 106,130 76,086,799
2055 105,915 76,047,952
2054 105,698 75,980,524
2053 105,486 75,907,047
2052 105,286 75,815,200
2051 105,079 75,709,173
2050 104,844 75,591,218
2049 104,636 75,460,140
2048 104,387 75,313,837
2047 104,154 75,153,802
2046 103,852 74,986,563
2045 103,548 74,808,886
2044 103,215 74,623,687
2043 102,934 74,424,133
2042 102,692 74,224,922
2041 102,447 74,020,934
2040 102,228 73,812,680
2039 102,061 73,600,788
2038 101,835 73,378,310
2037 101,707 73,155,497
2036 101,627 72,921,995
2035 101,580 72,671,687
2034 101,571 72,418,766
2033 101,591 72,145,065
2032 101,633 71,869,259
2031 101,764 71,581,519
2030 101,928 71,267,237
2029 102,181 70,948,992
2028 102,494 70,609,246
2027 102,841 70,248,858
2026 103,283 69,883,746
2025 103,742 69,487,000
2024 104,175 69,281,000
2023 104,597 68,526,000
2022 105,042 67,636,000
2021 105,490 66,978,000
2020 105,704 66,740,000
2019 105,669 66,628,000
2018 105,567 66,287,000
2017 105,356 65,964,000
2016 105,524 65,606,000
2015 106,095 65,087,000
2014 106,609 64,619,000
2013 107,078 64,138,000
2012 107,460 63,711,000
2011 107,570 63,258,810
2010 107,400 62,766,365
2009 107,203 62,276,270
2008 107,020 61,806,995
2007 106,726 61,322,463
2006 106,253 60,846,820
2005 105,671 60,401,206
2004 105,071 59,987,905
2003 104,464 59,647,577
2002 103,874 59,370,479
2001 103,288 59,119,673
2000 102,677 58,892,514
1999 102,046 58,682,466
1998 101,388 58,487,141
1997 100,674 58,316,954
1996 100,275 58,166,950
1995 100,225 58,019,030
1994 100,166 57,865,745
1993 100,103 57,718,614
1992 100,022 57,580,402
1991 99,895 57,424,897
1990 99,700 57,247,586
1989 99,403 57,076,711
1988 98,969 56,928,327
1987 98,376 56,802,050
1986 98,010 56,681,396
1985 97,984 56,550,268
1984 97,990 56,422,072
1983 97,998 56,332,848
1982 97,980 56,313,641
1981 97,909 56,333,829
1980 97,769 56,314,216
1979 97,544 56,246,951
1978 97,204 56,196,504
1977 96,725 56,193,492
1976 95,325 56,211,968
1975 93,017 56,225,800
1974 90,683 56,229,974
1973 88,805 56,194,527
1972 87,356 56,086,065
1971 85,896 55,896,223
1970 84,401 55,663,250
1969 82,885 55,441,750
1968 81,353 55,211,700
1967 79,814 54,943,600
1966 78,002 54,648,500
1965 75,924 54,348,050
1964 73,879 54,000,000
1963 71,885 53,650,000
1962 69,940 53,250,000
1961 68,037 52,800,000
1960 66,170 52,400,000

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/tonga/united-kingdom | CC BY

From 2006 to 2016, the population of Tonga decreased by 729 people (a 0.69% decline), while the United Kingdom gained 4,759,180 people (a 7.82% growth).

For the next 10 years, from 2016 to 2026, Tonga lost 2,241 people (a 2.12% decline), while the United Kingdom's population increased by 4,465,289 people (a 6.81% growth).

Tonga was ranked 182nd most populous country in 2006 and is 183rd in 2026. The United Kingdom was ranked 21st in 2006 and ranked 22nd now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Tonga's population will grow by 1.51% to 104,844 people and will still be ranked 183rd. The population of the United Kingdom will increase by 7.88% to 75,591,218 people and rank change from 22nd to 26th.

Tonga is projected to reach its peak in 2100 at 118K people compared to the peak of 76.2M people in 2073 for the United Kingdom.

Population growth rate by year

Tonga
Factual

Projection
United Kingdom
Factual

Projection
1x
Year Growth rate
Tonga United Kingdom
2100 0.03% -0.17%
2099 0.05% -0.16%
2098 0.03% -0.15%
2097 0.03% -0.15%
2096 0.07% -0.15%
2095 0.08% -0.13%
2094 0.07% -0.13%
2093 0.09% -0.12%
2092 0.1% -0.12%
2091 0.12% -0.11%
2090 0.13% -0.11%
2089 0.17% -0.09%
2088 0.18% -0.09%
2087 0.16% -0.09%
2086 0.19% -0.08%
2085 0.21% -0.07%
2084 0.25% -0.07%
2083 0.26% -0.05%
2082 0.25% -0.04%
2081 0.29% -0.04%
2080 0.31% -0.04%
2079 0.32% -0.02%
2078 0.32% -0.02%
2077 0.36% -0.003%
2076 0.34% -0.02%
2075 0.34% -0.01%
2074 0.35% -0.01%
2073 0.37% 0.01%
2072 0.37% 0.01%
2071 0.35% 0.01%
2070 0.33% 0.009%
2069 0.35% 0.001%
2068 0.35% 0.01%
2067 0.35% 0.009%
2066 0.3% 0.001%
2065 0.33% 0.004%
2064 0.32% -0%
2063 0.3% 0.009%
2062 0.29% 0.003%
2061 0.26% -0.001%
2060 0.26% -0.001%
2059 0.24% 0.02%
2058 0.23% 0.03%
2057 0.2% 0.04%
2056 0.2% 0.05%
2055 0.2% 0.09%
2054 0.2% 0.1%
2053 0.19% 0.12%
2052 0.2% 0.14%
2051 0.22% 0.16%
2050 0.2% 0.17%
2049 0.24% 0.19%
2048 0.22% 0.21%
2047 0.29% 0.22%
2046 0.29% 0.24%
2045 0.32% 0.25%
2044 0.27% 0.27%
2043 0.24% 0.27%
2042 0.24% 0.28%
2041 0.21% 0.28%
2040 0.16% 0.29%
2039 0.22% 0.3%
2038 0.13% 0.3%
2037 0.08% 0.32%
2036 0.05% 0.34%
2035 0.009% 0.35%
2034 -0.02% 0.38%
2033 -0.04% 0.38%
2032 -0.13% 0.4%
2031 -0.16% 0.44%
2030 -0.25% 0.45%
2029 -0.31% 0.48%
2028 -0.34% 0.51%
2027 -0.43% 0.52%
2026 -0.44% 0.57%
2025 -0.42% 0.3%
2024 -0.4% 1.1%
2023 -0.42% 1.32%
2022 -0.42% 0.98%
2021 -0.2% 0.36%
2020 0.03% 0.17%
2019 0.1% 0.51%
2018 0.2% 0.49%
2017 -0.16% 0.55%
2016 -0.54% 0.8%
2015 -0.48% 0.72%
2014 -0.44% 0.75%
2013 -0.36% 0.67%
2012 -0.1% 0.71%
2011 0.16% 0.78%
2010 0.18% 0.79%
2009 0.17% 0.76%
2008 0.28% 0.79%
2007 0.45% 0.78%
2006 0.55% 0.74%
2005 0.57% 0.69%
2004 0.58% 0.57%
2003 0.57% 0.47%
2002 0.57% 0.42%
2001 0.6% 0.39%
2000 0.62% 0.36%
1999 0.65% 0.33%
1998 0.71% 0.29%
1997 0.4% 0.26%
1996 0.05% 0.25%
1995 0.06% 0.26%
1994 0.06% 0.25%
1993 0.08% 0.24%
1992 0.13% 0.27%
1991 0.2% 0.31%
1990 0.3% 0.3%
1989 0.44% 0.26%
1988 0.6% 0.22%
1987 0.37% 0.21%
1986 0.03% 0.23%
1985 -0.006% 0.23%
1984 -0.008% 0.16%
1983 0.02% 0.03%
1982 0.07% -0.04%
1981 0.14% 0.03%
1980 0.23% 0.12%
1979 0.35% 0.09%
1978 0.5% 0.005%
1977 1.47% -0.03%
1976 2.48% -0.02%
1975 2.57% -0.007%
1974 2.11% 0.06%
1973 1.66% 0.19%
1972 1.7% 0.34%
1971 1.77% 0.42%
1970 1.83% 0.4%
1969 1.88% 0.42%
1968 1.93% 0.49%
1967 2.32% 0.54%
1966 2.74% 0.55%
1965 2.77% 0.64%
1964 2.77% 0.65%
1963 2.78% 0.75%
1962 2.8% 0.85%
1961 2.82% 0.76%

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/tonga/united-kingdom | CC BY

In 2025, the population of Tonga declined by 0.42%, while the United Kingdom's population grew by 0.3%.

Live population counters

Tonga United Kingdom
Current population
103283
70071289
Population rank 183/197 22/197
Percent of world population 0.001% 0.84%
One net population change
20.3 hours
2.56 minutes
One birth every
3.65 hours
46 seconds
One death every
13.1 hours
46.9 seconds
Daily growth/decline -1 +564
Annual growth/decline -433 +206,000
Annual growth/decline rate -0.42% +0.3%
Population growth rate rank 181/197 145/197
One migration net change every
4.09 hours
1.35 minutes
Annual migration change -2,150 +389,911
Net migration rank 99/196 4/196
Foreign-born residents 3,581 11,845,479
Foreign-born residents rank 187/195 4/195
Foreign-born share of population 3.4% 17.1%
Foreign-born share rank 113/195 36/195

Natural population change vs migration

Tonga
Natural

Migration
United Kingdom
Natural

Migration
1x
Year Population change
Tonga United Kingdom
Natural Migration Natural Migration
2025 - -2,150 - 389,911
2024 1,729 -2,149 13,233 417,114
2023 1,744 -2,173 34,606 445,523
2022 1,772 -2,218 39,770 487,029
2021 1,773 -2,220 30,609 462,967
2020 1,816 -1,807 -4,272 144,221
2019 1,841 -1,778 108,338 232,727
2018 1,873 -1,723 119,317 259,744
2017 1,912 -1,642 145,121 272,311
2016 1,989 -2,591 177,136 324,649
2015 2,064 -2,610 175,735 347,839
2014 2,135 -2,622 206,781 306,091
2013 2,199 -2,637 198,827 237,272
2012 2,255 -2,578 248,473 172,088
2011 2,298 -2,198 259,361 228,773
2010 2,332 -2,097 251,066 274,811
2009 2,358 -2,204 230,422 249,639
2008 2,397 -2,177 216,325 263,390
2007 2,423 -2,057 196,232 309,385
2006 2,459 -1,875 176,455 288,923
2005 2,495 -1,906 144,963 308,279
2004 2,478 -1,876 131,974 276,077
2003 2,448 -1,844 89,471 211,846
2002 2,396 -1,815 65,308 203,577
2001 2,358 -1,766 65,032 175,133
2000 2,346 -1,721 70,671 153,917
1999 2,352 -1,710 64,551 152,653
1998 2,344 -1,665 87,730 125,541
1997 2,332 -1,589 99,138 59,723
1996 2,393 -2,338 98,884 54,964
1995 2,476 -2,422 87,028 61,385
1994 2,547 -2,484 127,304 45,339
1993 2,594 -2,532 103,893 27,403
1992 2,622 -2,524 149,709 17,846
1991 2,637 -2,484 143,562 27,601
1990 2,641 -2,409 154,569 57,132
1989 2,644 -2,280 119,861 49,586
1988 2,649 -2,138 136,628 13,952
1987 2,646 -1,970 136,325 8,266
1986 2,704 -2,650 90,690 41,836
1985 2,762 -2,775 79,170 83,164
1984 2,814 -2,823 84,633 71,107
1983 2,840 -2,840 61,966 27,063
1982 2,853 -2,814 56,314 -61,152
1981 2,882 -2,778 73,234 -83,876
1980 2,885 -2,708 95,734 -25,187
1979 2,884 -2,604 61,872 11,255
1978 2,862 -2,457 16,859 3,783
1977 2,822 -2,273 0 -21,636
1976 2,769 -523 -5,621 -19,135
1975 2,709 -346 33,735 -40,241
1974 2,650 -344 67,476 -65,710
1973 2,617 -1,168 112,389 -33,840
1972 2,605 -1,153 162,650 -1,406
1971 2,611 -1,138 257,123 1,175
1970 2,628 -1,122 244,918 -15,254
1969 2,632 -1,101 260,577 -60,655
1968 2,614 -1,078 292,622 -38,852
1967 2,603 -1,060 346,145 -39,659
1966 2,550 -465 333,356 -27,935
1965 2,498 -426 364,132 -24,955
1964 2,445 -428 405,000 -23,885
1963 2,394 -426 337,995 8,271
1962 2,343 -420 340,800 76,443
1961 2,284 -401 311,519 52,295
1960 2,230 -384 314,400 19,953

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

GeoRank.org/population/tonga/united-kingdom | CC BY

Over the last 10 years, 47% of the population change in Tonga is from natural causes (a gain of 18,513 people) and 53% is from migration (a loss of 20,911 people). In the United Kingdom 19.8% is from natural causes (a gain of 839,593 people) and 80.2% is from migration (a gain of 3,394,124 people).

As of 2024, 3,581 residents or 3.4% of the population were not native-born in Tonga, compared to 11,845,479 people or 17.1% in the United Kingdom.

Biggest cities by population

Tonga
City Population
Nukualofa 23.2K
Mua 5K
United Kingdom
City Population
London 8.8M
Birmingham 1.14M
Glasgow 626K
Manchester 548K
Leeds 536K
Sheffield 518K
Liverpool 513K
Edinburgh 488K
Bristol 472K
Cardiff 384K

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/tonga/united-kingdom | 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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