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Population in the Solomon Islands compared to Tonga: Trends, Charts, Rankings

Updated on by Georank team

The latest officially reported population of the Solomon Islands was 819,198 in 2024 vs 104,175 people in Tonga in 2024. In 2026, based on the adjusted UN estimation, the current Solomon Islands' population is 863,951 people compared to 103,309 in Tonga.

Population statistics:

  • The Solomon Islands' population is 8.36 times bigger than Tonga's.
  • The Solomon Islands is ranked the 161st most populous country in the world, while Tonga is the 183rd.
  • The countries together account for 0.01% of the world: 0.01% for the Solomon Islands vs 0.001% for Tonga.
  • For the last 10 years, the Solomon Islands has had an average growth rate of +2.95% per year vs -0.25% in Tonga.
  • Since 2006, the population of the Solomon Islands has increased from 492K people to 864K (75.7% growth), while Tonga has declined from 106K to 103K (2.77% decline).

Solomon Islands vs Tonga: population by year and forecast

Solomon Islands
Factual

Projection
Tonga
Factual

Projection
1x
Year Population
Solomon Islands Tonga
2100 1,869,358 117,647
2099 1,865,277 117,615
2098 1,861,047 117,560
2097 1,856,421 117,522
2096 1,851,585 117,491
2095 1,846,229 117,414
2094 1,840,799 117,321
2093 1,834,881 117,237
2092 1,828,545 117,127
2091 1,822,001 117,013
2090 1,815,153 116,869
2089 1,808,103 116,712
2088 1,800,741 116,511
2087 1,793,136 116,307
2086 1,785,209 116,118
2085 1,777,013 115,902
2084 1,768,444 115,658
2083 1,759,601 115,366
2082 1,750,433 115,071
2081 1,740,952 114,782
2080 1,731,110 114,453
2079 1,721,146 114,103
2078 1,710,785 113,740
2077 1,700,043 113,378
2076 1,688,876 112,974
2075 1,677,587 112,594
2074 1,666,185 112,208
2073 1,654,264 111,819
2072 1,642,044 111,405
2071 1,629,467 110,992
2070 1,616,736 110,605
2069 1,603,679 110,238
2068 1,590,304 109,853
2067 1,576,716 109,474
2066 1,563,005 109,090
2065 1,549,060 108,765
2064 1,534,862 108,405
2063 1,520,351 108,061
2062 1,505,792 107,738
2061 1,490,935 107,424
2060 1,476,028 107,145
2059 1,460,816 106,869
2058 1,445,385 106,617
2057 1,429,967 106,372
2056 1,414,320 106,158
2055 1,398,440 105,942
2054 1,382,426 105,725
2053 1,366,190 105,513
2052 1,349,703 105,313
2051 1,333,136 105,106
2050 1,316,322 104,871
2049 1,299,367 104,663
2048 1,282,258 104,414
2047 1,265,007 104,180
2046 1,247,608 103,879
2045 1,230,002 103,575
2044 1,212,277 103,241
2043 1,194,351 102,961
2042 1,176,271 102,718
2041 1,158,172 102,474
2040 1,139,832 102,254
2039 1,121,014 102,088
2038 1,101,787 101,861
2037 1,082,148 101,733
2036 1,062,197 101,653
2035 1,041,925 101,607
2034 1,021,492 101,598
2033 1,000,997 101,618
2032 980,329 101,659
2031 959,788 101,790
2030 939,300 101,954
2029 918,921 102,207
2028 898,660 102,521
2027 878,499 102,868
2026 858,557 103,309
2025 838,746 103,768
2024 819,198 104,175
2023 800,005 104,597
2022 781,066 105,042
2021 762,591 105,490
2020 744,498 105,704
2019 728,147 105,669
2018 709,101 105,567
2017 685,672 105,356
2016 662,379 105,524
2015 639,415 106,095
2014 616,908 106,609
2013 594,945 107,078
2012 573,606 107,460
2011 552,945 107,570
2010 532,968 107,400
2009 518,141 107,203
2008 508,790 107,020
2007 500,156 106,726
2006 491,594 106,253
2005 483,080 105,671
2004 474,611 105,071
2003 466,154 104,464
2002 457,671 103,874
2001 449,125 103,288
2000 440,469 102,677
1999 430,500 102,046
1998 419,071 101,388
1997 407,474 100,674
1996 396,009 100,275
1995 384,733 100,225
1994 373,675 100,166
1993 362,839 100,103
1992 352,205 100,022
1991 341,738 99,895
1990 331,435 99,700
1989 321,282 99,403
1988 311,265 98,969
1987 301,414 98,376
1986 291,842 98,010
1985 282,455 97,984
1984 273,163 97,990
1983 264,068 97,998
1982 255,200 97,980
1981 246,555 97,909
1980 238,135 97,769
1979 229,953 97,544
1978 222,029 97,204
1977 214,418 96,725
1976 207,194 95,325
1975 200,744 93,017
1974 195,041 90,683
1973 189,774 88,805
1972 184,994 87,356
1971 180,637 85,896
1970 176,579 84,401
1969 172,476 82,885
1968 168,282 81,353
1967 164,245 79,814
1966 160,393 78,002
1965 156,686 75,924
1964 153,085 73,879
1963 149,589 71,885
1962 146,201 69,940
1961 142,912 68,037
1960 139,688 66,170

Data sources: United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10); World Bank | Health (1960–2024, retrieved 2026-04-06).

GeoRank.org/population/solomon-islands/tonga | CC BY

From 2006 to 2016, the population of the Solomon Islands increased by 170,785 people (a 34.7% growth), while Tonga lost 729 people (a 0.69% decline).

For the next 10 years, from 2016 to 2026, the Solomon Islands gained 201,572 people (a 30.4% growth), while Tonga's population decreased by 2,215 people (a 2.1% decline).

The Solomon Islands was ranked 165th most populous country in 2006 and is 161st 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 Solomon Islands' population will grow by 52.4% to 1,316,322 people with a rank change from 161st to 156th. The population of Tonga will increase by 1.51% to 104,871 people and will still be ranked 183rd.

The Solomon Islands is projected to reach its peak in 2100 at 1.87M people compared to the peak of 118K people in 2100 for Tonga.

Population growth rate by year

Solomon Islands
Factual

Projection
Tonga
Factual

Projection
1x
Year Growth rate
Solomon Islands Tonga
2100 0.22% 0.03%
2099 0.23% 0.05%
2098 0.25% 0.03%
2097 0.26% 0.03%
2096 0.29% 0.07%
2095 0.29% 0.08%
2094 0.32% 0.07%
2093 0.35% 0.09%
2092 0.36% 0.1%
2091 0.38% 0.12%
2090 0.39% 0.13%
2089 0.41% 0.17%
2088 0.42% 0.18%
2087 0.44% 0.16%
2086 0.46% 0.19%
2085 0.48% 0.21%
2084 0.5% 0.25%
2083 0.52% 0.26%
2082 0.54% 0.25%
2081 0.57% 0.29%
2080 0.58% 0.31%
2079 0.61% 0.32%
2078 0.63% 0.32%
2077 0.66% 0.36%
2076 0.67% 0.34%
2075 0.68% 0.34%
2074 0.72% 0.35%
2073 0.74% 0.37%
2072 0.77% 0.37%
2071 0.79% 0.35%
2070 0.81% 0.33%
2069 0.84% 0.35%
2068 0.86% 0.35%
2067 0.88% 0.35%
2066 0.9% 0.3%
2065 0.93% 0.33%
2064 0.95% 0.32%
2063 0.97% 0.3%
2062 1% 0.29%
2061 1.01% 0.26%
2060 1.04% 0.26%
2059 1.07% 0.24%
2058 1.08% 0.23%
2057 1.11% 0.2%
2056 1.14% 0.2%
2055 1.16% 0.2%
2054 1.19% 0.2%
2053 1.22% 0.19%
2052 1.24% 0.2%
2051 1.28% 0.22%
2050 1.3% 0.2%
2049 1.33% 0.24%
2048 1.36% 0.22%
2047 1.39% 0.29%
2046 1.43% 0.29%
2045 1.46% 0.32%
2044 1.5% 0.27%
2043 1.54% 0.24%
2042 1.56% 0.24%
2041 1.61% 0.21%
2040 1.68% 0.16%
2039 1.75% 0.22%
2038 1.81% 0.13%
2037 1.88% 0.08%
2036 1.95% 0.05%
2035 2% 0.009%
2034 2.05% -0.02%
2033 2.11% -0.04%
2032 2.14% -0.13%
2031 2.18% -0.16%
2030 2.22% -0.25%
2029 2.25% -0.31%
2028 2.3% -0.34%
2027 2.32% -0.43%
2026 2.36% -0.44%
2025 2.39% -0.39%
2024 2.4% -0.4%
2023 2.42% -0.42%
2022 2.42% -0.42%
2021 2.43% -0.2%
2020 2.25% 0.03%
2019 2.69% 0.1%
2018 3.42% 0.2%
2017 3.52% -0.16%
2016 3.59% -0.54%
2015 3.65% -0.48%
2014 3.69% -0.44%
2013 3.72% -0.36%
2012 3.74% -0.1%
2011 3.75% 0.16%
2010 2.86% 0.18%
2009 1.84% 0.17%
2008 1.73% 0.28%
2007 1.74% 0.45%
2006 1.76% 0.55%
2005 1.78% 0.57%
2004 1.81% 0.58%
2003 1.85% 0.57%
2002 1.9% 0.57%
2001 1.97% 0.6%
2000 2.32% 0.62%
1999 2.73% 0.65%
1998 2.85% 0.71%
1997 2.9% 0.4%
1996 2.93% 0.05%
1995 2.96% 0.06%
1994 2.99% 0.06%
1993 3.02% 0.08%
1992 3.06% 0.13%
1991 3.11% 0.2%
1990 3.16% 0.3%
1989 3.22% 0.44%
1988 3.27% 0.6%
1987 3.28% 0.37%
1986 3.32% 0.03%
1985 3.4% -0.006%
1984 3.44% -0.008%
1983 3.47% 0.02%
1982 3.51% 0.07%
1981 3.54% 0.14%
1980 3.56% 0.23%
1979 3.57% 0.35%
1978 3.55% 0.5%
1977 3.49% 1.47%
1976 3.21% 2.48%
1975 2.92% 2.57%
1974 2.78% 2.11%
1973 2.58% 1.66%
1972 2.41% 1.7%
1971 2.3% 1.77%
1970 2.38% 1.83%
1969 2.49% 1.88%
1968 2.46% 1.93%
1967 2.4% 2.32%
1966 2.37% 2.74%
1965 2.35% 2.77%
1964 2.34% 2.77%
1963 2.32% 2.78%
1962 2.3% 2.8%
1961 2.31% 2.82%

Data sources: United Nations | World Population Prospects (2025–2100, retrieved 2026-03-10); World Bank | Health (1961–2024, retrieved 2026-04-06).

GeoRank.org/population/solomon-islands/tonga | CC BY

In 2024, the population of the Solomon Islands grew by 2.4%, while Tonga's population declined by 0.4%.

Live population counters

Solomon Islands Tonga
Current population
863951
103309
Population rank 161/197 183/197
Percent of world population 0.01% 0.001%
One net population change
27.4 minutes
20.8 hours
One birth every
24.4 minutes
3.62 hours
One death every
2.13 hours
13 hours
Daily growth/decline +53 -1
Annual growth/decline +19,193 -422
Annual growth/decline rate +2.4% -0.4%
Population growth rate rank 33/197 183/197
One migration net change every
5.39 hours
4.09 hours
Annual migration change +1,631 -2,150
Net migration rank 59/196 99/196
Foreign-born residents 2,469 3,581
Foreign-born residents rank 192/195 187/195
Foreign-born share of population 0.3% 3.4%
Foreign-born share rank 184/195 113/195

Natural population change vs migration

Solomon Islands
Natural

Migration
Tonga
Natural

Migration
1x
Year Population change
Solomon Islands Tonga
Natural Migration Natural Migration
2025 - 1,631 - -2,150
2024 - 1,610 - -2,149
2023 17,436 1,636 1,744 -2,173
2022 17,253 1,567 1,772 -2,218
2021 16,626 1,499 1,773 -2,220
2020 16,488 1,556 1,816 -1,807
2019 16,649 -1,990 1,841 -1,778
2018 16,790 6,653 1,873 -1,723
2017 16,897 6,513 1,912 -1,642
2016 17,027 6,146 1,989 -2,591
2015 16,909 5,853 2,064 -2,610
2014 16,652 5,598 2,135 -2,622
2013 16,038 5,631 2,199 -2,637
2012 15,585 5,420 2,255 -2,578
2011 15,095 5,219 2,298 -2,198
2010 14,604 5,040 2,332 -2,097
2009 14,381 -4,360 2,358 -2,204
2008 14,225 -5,538 2,397 -2,177
2007 13,963 -5,383 2,423 -2,057
2006 13,799 -5,262 2,459 -1,875
2005 13,568 -5,082 2,495 -1,906
2004 13,444 -4,985 2,478 -1,876
2003 13,344 -4,881 2,448 -1,844
2002 13,195 -4,691 2,396 -1,815
2001 13,061 -4,474 2,358 -1,766
2000 12,938 -4,219 2,346 -1,721
1999 12,809 -1,588 2,352 -1,710
1998 12,658 -1,019 2,344 -1,665
1997 12,478 -931 2,332 -1,589
1996 12,328 -947 2,393 -2,338
1995 12,124 -952 2,476 -2,422
1994 11,771 -828 2,547 -2,484
1993 11,396 -665 2,594 -2,532
1992 11,029 -482 2,622 -2,524
1991 10,789 -410 2,637 -2,484
1990 10,561 -335 2,641 -2,409
1989 10,354 -270 2,644 -2,280
1988 10,142 -197 2,649 -2,138
1987 9,943 -179 2,646 -1,970
1986 9,656 -269 2,704 -2,650
1985 9,534 -150 2,762 -2,775
1984 9,299 -102 2,814 -2,823
1983 9,011 -30 2,840 -2,840
1982 8,720 40 2,853 -2,814
1981 8,436 99 2,882 -2,778
1980 8,156 151 2,885 -2,708
1979 7,874 188 2,884 -2,604
1978 7,598 174 2,862 -2,457
1977 7,290 159 2,822 -2,273
1976 7,058 -48 2,769 -523
1975 6,635 -760 2,709 -346
1974 6,612 -1,084 2,650 -344
1973 6,343 -1,329 2,617 -1,168
1972 6,074 -1,520 2,605 -1,153
1971 5,814 -1,646 2,611 -1,138
1970 5,575 -1,632 2,628 -1,122
1969 5,444 -1,187 2,632 -1,101
1968 5,285 -1,154 2,614 -1,078
1967 5,151 -1,213 2,603 -1,060
1966 5,028 -1,256 2,550 -465
1965 4,885 -1,237 2,498 -426
1964 4,747 -1,200 2,445 -428
1963 4,571 -1,129 2,394 -426
1962 4,408 -1,073 2,343 -420
1961 4,257 -1,016 2,284 -401
1960 4,119 -917 2,230 -384

Data sources: World Bank | Health (1960–2025, retrieved 2026-04-06).

GeoRank.org/population/solomon-islands/tonga | CC BY

Over the last 10 years, 82.8% of the population change in the Solomon Islands is from natural causes (a gain of 168,727 people) and 17.2% is from migration (a gain of 35,031 people). In Tonga 46.9% is from natural causes (a gain of 18,919 people) and 53.1% is from migration (a loss of 21,384 people).

As of 2024, 2,469 residents or 0.3% of the population were not native-born in the Solomon Islands, compared to 3,581 people or 3.4% in Tonga.

Biggest cities by population

Solomon Islands
City Population
Honiara 84.5K
Auki 6.81K
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 (1960–2024, retrieved 2026-04-06); United Nations | World Population Prospects (1960–2026, retrieved 2026-03-10); U.S. Census Bureau (1960–2025, retrieved 2026-02-08); Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20).

GeoRank.org/population/solomon-islands/tonga | CC BY

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Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-04-06)
  2. United Nations | World Population Prospects (1960–2100, retrieved 2026-03-10)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-02-08)
  4. Central Intelligence Agency (CIA) (2000–2019, retrieved 2026-02-20)
  5. Wikidata (2026, retrieved 2026-02-08)

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