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Solomon Islands vs Tonga statistics compared

Updated on by Georank team

The Solomon Islands has a population of 819K (ranked 162/197), compared with 104K in Tonga (ranked 183/197). The Solomon Islands' land area is 10,807 sq mi versus 278 sq mi for Tonga (ranked 141st vs. 176th).

By GDP, The Solomon Islands ranks 182/197 ($1.58B) and Tonga ranks 191/197 ($591M). By GDP per capita, The Solomon Islands ranks 157/197 ($1,934), while Tonga ranks 115/197 ($5,652).

Main facts and rankings

Solomon Islands Tonga
Population
863951
103309
Population rank 161/197 183/197
GDP
$1.58B
2024
$591M
2023
GDP rank 182/197 191/197
GDP per capita
$1,934
2024
$5,652
2023
GDP per capita rank 157/197 115/197
GDP per capita, PPP
$2,675
2024
$7,803
2023
Government debt
$350M
2024
$256M
2023
Debt-to-GDP ratio
22.1%
2024
37%
2024
Government debt per person
$427
2024
$2,445
2023
Government debt per person rank 169/185 111/185
Average annual personal income after taxes
$1,776
2026
$3,886
2026
Land area 10,807 sq mi 278 sq mi
Population density
79.4 ppl/mi²
2026
372 ppl/mi²
2026
Fertility rate
3.56
2023
3.13
2023
Median age
21.5 years
2024
21.9 years
2024
Life expectancy
71 years
2026
73.4 years
2026

Solomon Islands and Tonga: Comparison Charts

Solomon Islands and Tonga economies compared

GDP
Solomon Islands

Tonga
1x
Year GDP
Solomon Islands Tonga
2024 $1,583,964,704 -
2023 $1,506,124,566 $591,139,749
2022 $1,466,670,930 $556,514,555
2021 $1,558,312,104 $519,306,353
2020 $1,536,143,428 $506,571,468
2019 $1,619,150,564 $506,031,239
2018 $1,615,473,250 $493,530,783
2017 $1,469,790,526 $459,976,850
2016 $1,379,486,291 $420,828,262
2015 $1,307,908,814 $437,525,514
2014 $1,335,576,763 $440,997,738
2013 $1,285,905,958 $451,788,498
2012 $1,185,217,634 $471,122,971
2011 $1,063,898,227 $414,143,828
2010 $898,128,551 $366,887,375
2009 $805,557,289 $312,415,028
2008 $776,335,523 $344,438,844
2007 $695,291,218 $298,519,623
2006 $617,257,458 $292,232,703
2005 $552,881,357 $261,823,805
2004 $468,000,121 $230,678,011
2003 $417,666,639 $202,246,591
2002 $346,406,739 $182,764,281
2001 $409,508,553 $181,117,230
2000 $419,842,674 $204,848,488
1999 $488,024,514 $199,208,718
1998 $457,579,840 $191,504,893
1997 $526,554,006 $214,991,452
1996 $510,586,430 $222,100,576
1995 $469,443,202 $208,871,666
1994 $402,837,005 $195,990,986
1993 $300,746,361 $138,489,884
1992 $269,034,596 $137,066,291
1991 $227,540,473 $132,201,141
1990 $214,877,667 $113,563,822
1989 $172,882,411 $106,344,855
1988 $176,494,394 $106,657,267
1987 $155,128,542 $81,667,133
1986 $147,620,048 $68,195,856
1985 $165,524,943 $60,058,663
1984 $181,570,474 $64,248,355
1983 $181,220,399 $60,863,964
1982 $192,902,019 $62,068,161
1981 $193,750,541 $62,242,013
1980 $182,852,107 $53,260,077
1979 $151,276,496 $44,667,002
1978 $111,027,427 $41,567,472
1977 $93,145,283 $34,139,388
1976 $83,100,834 $30,036,417
1975 $74,620,320 $32,506,742
1974 $84,539,332 -
1973 $55,272,109 -
1972 $40,606,712 -
1971 $50,056,883 -
1970 - -
1969 $28,606,411 -
1968 $28,084,253 -
1967 $25,203,524 -

Data sources: World Bank | Economy & Growth (1967–2024, retrieved 2026-04-06).

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

Solomon Islands and Tonga economies compared

GDP per capita
Solomon Islands

Tonga
1x
Year GDP per capita
Solomon Islands Tonga
2024 $1,934 -
2023 $1,883 $5,652
2022 $1,878 $5,298
2021 $2,043 $4,923
2020 $2,063 $4,792
2019 $2,224 $4,789
2018 $2,278 $4,675
2017 $2,144 $4,366
2016 $2,083 $3,988
2015 $2,045 $4,124
2014 $2,165 $4,137
2013 $2,161 $4,219
2012 $2,066 $4,384
2011 $1,924 $3,850
2010 $1,685 $3,416
2009 $1,555 $2,914
2008 $1,526 $3,218
2007 $1,390 $2,797
2006 $1,256 $2,750
2005 $1,144 $2,478
2004 $986 $2,195
2003 $896 $1,936
2002 $757 $1,759
2001 $912 $1,754
2000 $953 $1,995
1999 $1,134 $1,952
1998 $1,092 $1,889
1997 $1,292 $2,136
1996 $1,289 $2,215
1995 $1,220 $2,084
1994 $1,078 $1,957
1993 $829 $1,383
1992 $764 $1,370
1991 $666 $1,323
1990 $648 $1,139
1989 $538 $1,070
1988 $567 $1,078
1987 $515 $830
1986 $506 $696
1985 $586 $613
1984 $665 $656
1983 $686 $621
1982 $756 $633
1981 $786 $636
1980 $768 $545
1979 $658 $458
1978 $500 $428
1977 $434 $353
1976 $401 $315
1975 $372 $349
1974 $433 -
1973 $291.3 -
1972 $219.5 -
1971 $277.1 -
1970 - -
1969 $165.9 -
1968 $166.9 -
1967 $153.5 -

Data sources: World Bank | Economy & Growth (1967–2024, retrieved 2026-04-06).

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

Solomon Islands vs. Tonga life expectancy calculator

Life expectancy
Solomon Islands

Tonga
1x
Year Life expectancy, years
Solomon Islands Tonga
2026 71 73.4
2025 70.8 73.2
2024 70.7 73.1
2023 70.5 72.9
2022 70.4 72.6
2021 68.9 72.1
2020 69.3 72.4
2019 70 72.3
2018 69.8 72.2
2017 69.7 72.1
2016 69.5 72
2015 69.3 71.9
2014 69 71.7
2013 69 71.6
2012 69 71.5
2011 68.8 71.4
2010 68.7 71.3
2009 68.4 70.9
2008 68.3 71
2007 67.8 70.9
2006 68 70.7
2005 67.8 70.6
2004 67.6 70.4
2003 67.5 70.2
2002 67.4 70
2001 67.2 69.8
2000 67.1 69.6
1999 67 69.4
1998 66.9 69.2
1997 66.8 69
1996 66.7 68.8
1995 66.7 68.6
1994 66.7 68.4
1993 66.6 68.2
1992 66.5 67.9
1991 66.4 67.7
1990 66.2 67.5
1989 66.1 67.4
1988 65.9 67.3
1987 65.7 67.2
1986 64.7 67.1
1985 65.3 66.9
1984 65 66.8
1983 64.8 66.7
1982 64.5 66.3
1981 64.1 66.4
1980 63.7 66.2
1979 63.1 66
1978 62.5 65.9
1977 61.5 65.6
1976 61.2 65.4
1975 58.4 65.1
1974 59.6 64.8
1973 58.8 64.4
1972 57.9 64.1
1971 57 63.6
1970 56.1 63.2
1969 55.1 62.7
1968 54.1 62.2
1967 53.1 61.7
1966 52.3 61.2
1965 51.4 60.7
1964 50.6 60.3
1963 49.8 59.8
1962 49 59.3
1961 48.3 58.8
1960 47.7 58.3
1959 47 57.8
1958 46.3 57.2
1957 45.7 56.5
1956 42.8 55.7
1955 44.3 54.7
1954 43.7 53.6
1953 43.2 52.4
1952 42.6 51.2
1951 42 49.8
1950 41.4 48.4

Data sources: United Nations | World Population Prospects (1950–2026, retrieved 2026-03-10).

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

Solomon Islands and Tonga population clocks and comparison

Population
Solomon Islands

Tonga
1x
Year Population
Solomon Islands Tonga
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: World Bank | Health (1960–2024, retrieved 2026-04-06).

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

Fertility rates in Solomon Islands and Tonga

Fertility rate
Solomon Islands

Tonga
1x
Year Fertility rate
Solomon Islands Tonga
2023 3.56 3.13
2022 3.62 3.17
2021 3.69 3.2
2020 3.75 3.23
2019 3.8 3.27
2018 3.93 3.33
2017 4.06 3.39
2016 4.2 3.46
2015 4.29 3.54
2014 4.36 3.62
2013 4.33 3.7
2012 4.33 3.77
2011 4.34 3.83
2010 4.34 3.88
2009 4.35 3.95
2008 4.36 4.01
2007 4.37 4.09
2006 4.39 4.14
2005 4.41 4.2
2004 4.47 4.19
2003 4.54 4.18
2002 4.6 4.14
2001 4.67 4.13
2000 4.76 4.16
1999 4.86 4.23
1998 4.98 4.31
1997 5.09 4.38
1996 5.22 4.46
1995 5.34 4.56
1994 5.4 4.66
1993 5.45 4.73
1992 5.51 4.79
1991 5.62 4.85
1990 5.74 4.93
1989 5.87 5.01
1988 5.99 5.1
1987 6.12 5.19
1986 6.26 5.27
1985 6.38 5.34
1984 6.49 5.41
1983 6.57 5.45
1982 6.64 5.5
1981 6.71 5.55
1980 6.77 5.6
1979 6.82 5.65
1978 6.87 5.68
1977 6.92 5.7
1976 6.95 5.73
1975 6.99 5.75
1974 7.01 5.77
1973 7 5.8
1972 6.99 5.86
1971 6.99 5.96
1970 6.98 6.07
1969 6.97 6.17
1968 6.95 6.23
1967 6.97 6.29
1966 7 6.35
1965 7.02 6.41
1964 7.05 6.46
1963 7.03 6.52
1962 7.04 6.57
1961 7.05 6.61
1960 7.07 6.65

Data sources: World Bank | Health (1960–2023, retrieved 2026-04-06).

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

Solomon Islands and Tonga demographics compared

Median age
Solomon Islands

Tonga
1x
Year Median age, years
Solomon Islands Tonga
2024 21.5 21.9
2023 21.3 21.9
2022 21.1 22
2021 20.9 22.1
2020 20.7 22.1
2019 20.5 22
2018 20.4 22
2017 20.2 21.9
2016 20 21.9
2015 19.9 21.8
2014 19.8 21.7
2013 19.7 21.6
2012 19.7 21.4
2011 19.6 21.2
2010 19.6 21.2
2009 19.5 21.1
2008 19.4 21
2007 19.4 20.9
2006 19.2 20.8
2005 19.1 20.8
2004 19 20.8
2003 18.8 20.8
2002 18.6 20.7
2001 18.4 20.5
2000 18.3 20.3
1999 18.1 20.1
1998 17.9 19.9
1997 17.8 19.7
1996 17.7 19.6
1995 17.5 19.6
1994 17.4 19.6
1993 17.2 19.6
1992 17.1 19.5
1991 17 19.3
1990 16.8 19.1
1989 16.7 18.9
1988 16.5 18.6
1987 16.4 18.3
1986 16.3 18.2
1985 16.2 18.1
1984 16.1 18
1983 16 17.9
1982 15.9 17.8
1981 15.9 17.6
1980 15.8 17.4
1979 15.8 17.3
1978 15.8 17.1
1977 15.9 16.8
1976 15.9 16.7
1975 16.1 16.7
1974 16.3 16.8
1973 16.4 16.8
1972 16.6 16.7
1971 16.6 16.7
1970 16.7 16.8
1969 16.8 16.8
1968 16.8 16.9
1967 16.9 17
1966 17 17
1965 17 17
1964 17 17
1963 17 17
1962 16.9 17.1
1961 16.9 17.1
1960 16.8 17.1

Data sources: World Bank | Health (1960–2024, retrieved 2026-04-06).

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

Interactive Maps

Use the buttons below to switch between world maps comparing statistics for the Solomon Islands and Tonga.

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National statistics comparison

Finance

Solomon Islands Tonga
GNI, Atlas method
$1.57B
2024
$619M
2023
Government expenditure, % of GDP
35.8%
2024
51.3%
2024
Education expenditure, % of GDP
8.29%
2023
5.15%
2023
Deficit/surplus, % of GDP
-3.08%
2024
+4.17%
2024
Unemployment rate
0.69%
2013
1.65%
2023
Services, % of GDP
46.9%
2024
50%
2023
Industry, % of GDP
23.4%
2024
14.9%
2023
Economic freedom index
53.7
2026
58.9
2026
Income share by richest 10%
29.2%
2012
22%
2021
Income share by poorest 10%
2.8%
2012
4%
2021
Total reserves including gold
$688M
2023
$377M
2024
Personal remittances received
$95.2M
2024
$254M
2024
International tourist arrivals
4,400
2020
94,000
2019
International tourism as share of exports
1.63%
2020
50.3%
2020

Energy

Solomon Islands Tonga
Energy use, kg of oil equivalent per capita
128 kg
2007
543 kg
2007
GDP PPP per kg equivalent of energy use
$14.6
2007
$7.94
2007
Carbon dioxide (CO2) emissions
0.31 megatons
2024
0.17 megatons
2024
CO2 emissions per capita
0.38 tons
2024
1.63 tons
2024
Fossil fuel energy use share
0%
2007
0%
2007
Renewable energy use share
50.1%
2022
2.3%
2022
Renewable electricity output share
6.56%
2021
14.2%
2021
Hydroelectric share
0.86%
2021
0%
2021
Nuclear share
0%
2021
0%
2021
Electricity access
81.3%
2023
100%
2023

Society

Solomon Islands Tonga
% of world population
0.01%
2024
0.001%
2024
Annual migration change
+1,631
2025
-2,150
2025
Urban population
30.7%
2024
21.2%
2024
Male:Female ratio
51.1:48.9
2024
47.2:52.8
2024
Average male height
5.35 ft
2025
5.74 ft
2025
Average female height
5.14 ft
2025
5.45 ft
2025
Quality of life index
36
2026
45.5
2026
Corruption Perceptions Index
44
2025
50
2025
Higher education index
3
2026
n/a
Homicides per 100K people
3.68
2008
0.95
2019
Road traffic mortality per 100K people
16.5
2019
33
2019
Visa free countries
136
2025
126
2025
Adult literacy rate
84.1%
2013
99.4%
2021
English speaking
31.7%
2023
30%
2023
People using the Internet
42.5%
2023
58.5%
2023

Health

Solomon Islands Tonga
Government health expenditure per capita
$111.4
2023
$358
2023
Out-of-pocket health expenditure per capita
$3.52
2023
$21
2023
Life expectancy
71 years
2026
73.4 years
2026
Foreign aid share of health expenditure
33.9%
2023
44.2%
2023
Physicians per 1,000 people
0.24
2023
1.01
2021
Age at first childbirth
22.6 years
2025
24.9 years
2025
Maternal mortality per 100K births
123
2023
67
2023
Mortality rate before reaching 5 years of age
20.6
2023
9.9
2023
Obesity rate
23.3%
2022
72.4%
2022
Diabetes prevalence
12%
2024
19.6%
2024
Air quality index
93
2026
91
2026
Tobacco use prevalence
36.9%
2022
31.3%
2022
Pure alcohol consumption per capita
1.45 liters
2020
0.36 liters
2020

Territory

Solomon Islands Tonga
% of world land
0.02%
2026
0.0005%
2026
Land area per capita
13,192 sq mi
2024
2,669 sq mi
2024
Agricultural land area
422 sq mi
2026
135.1 sq mi
2026
Forest area
9,733 sq mi
2026
34.6 sq mi
2026
Roads length
864 mi
2011
423 mi
2011

In-depth comparisons

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Data sources:

  1. World Bank | Health (1960–2025, retrieved 2026-04-06)
  2. United Nations | World Population Prospects (1950–2026, retrieved 2026-03-10)
  3. U.S. Census Bureau (1960–2025, retrieved 2026-02-08)
  4. Central Intelligence Agency (CIA) (2000–2025, retrieved 2026-02-20)
  5. International Monetary Fund (IMF) | Fiscal Monitor (2023–2024, retrieved 2026-02-20)
  6. LivingCost (2026, retrieved 2025-10-14)
  7. World Obesity Federation (2022, retrieved 2026-02-08)
  8. Passport Index (2025, retrieved 2026-02-08)
  9. The Heritage Foundation | Economic Freedom Index (2026, retrieved 2026-03-09)
  10. Transparency International (2025, retrieved 2026-02-10)
  11. EduRank (2026, retrieved 2025-10-13)

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