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

Updated on by Georank

The latest officially reported population of the Solomon Islands was 838,645 in 2025 vs 71,619,863 people in Thailand in 2025. In 2026, based on the adjusted UN estimation, the current Solomon Islands' population is 868,694 people compared to 71,565,981 in Thailand.

Population statistics:

  • Thailand's population is 82.4 times bigger than the Solomon Islands'.
  • The Solomon Islands is ranked the 161st most populous country in the world, while Thailand is the 21st.
  • The countries together account for 0.87% of the world: 0.01% for the Solomon Islands vs 0.86% for Thailand.
  • For the last 10 years, the Solomon Islands has had an average growth rate of +2.83% per year vs +0.18% in Thailand.
  • Since 2006, the population of the Solomon Islands has increased from 492K people to 869K (76.7% growth), while Thailand has grown from 66.6M to 71.6M (7.51% growth).

Solomon Islands vs Thailand: population by year and forecast

Solomon Islands
Factual

Projection
Thailand
Factual

Projection
1x
Year Population
Solomon Islands Thailand
2100 1,869,132 45,708,431
2099 1,865,051 46,053,146
2098 1,860,822 46,403,189
2097 1,856,197 46,757,918
2096 1,851,361 47,118,652
2095 1,846,006 47,484,043
2094 1,840,576 47,853,561
2093 1,834,659 48,226,682
2092 1,828,323 48,605,235
2091 1,821,781 48,984,504
2090 1,814,933 49,368,049
2089 1,807,885 49,756,629
2088 1,800,523 50,142,276
2087 1,792,919 50,532,164
2086 1,784,993 50,925,294
2085 1,776,798 51,321,960
2084 1,768,230 51,724,454
2083 1,759,388 52,127,592
2082 1,750,221 52,533,368
2081 1,740,741 52,938,345
2080 1,730,900 53,347,733
2079 1,720,938 53,762,492
2078 1,710,578 54,177,529
2077 1,699,838 54,595,112
2076 1,688,671 55,015,291
2075 1,677,384 55,438,108
2074 1,665,984 55,867,914
2073 1,654,063 56,300,358
2072 1,641,845 56,735,274
2071 1,629,270 57,172,515
2070 1,616,540 57,616,731
2069 1,603,485 58,061,962
2068 1,590,112 58,512,248
2067 1,576,525 58,962,990
2066 1,562,815 59,413,893
2065 1,548,873 59,873,261
2064 1,534,676 60,331,851
2063 1,520,167 60,792,306
2062 1,505,610 61,257,068
2061 1,490,754 61,720,030
2060 1,475,849 62,187,380
2059 1,460,639 62,651,158
2058 1,445,210 63,113,332
2057 1,429,794 63,572,746
2056 1,414,149 64,027,520
2055 1,398,271 64,473,146
2054 1,382,259 64,912,210
2053 1,366,025 65,338,122
2052 1,349,539 65,758,061
2051 1,332,975 66,162,612
2050 1,316,163 66,552,915
2049 1,299,210 66,931,487
2048 1,282,103 67,291,479
2047 1,264,854 67,636,461
2046 1,247,457 67,967,131
2045 1,229,853 68,281,902
2044 1,212,131 68,579,656
2043 1,194,206 68,864,788
2042 1,176,128 69,133,982
2041 1,158,032 69,390,832
2040 1,139,694 69,626,857
2039 1,120,879 69,848,522
2038 1,101,654 70,056,903
2037 1,082,017 70,250,371
2036 1,062,068 70,429,677
2035 1,041,799 70,599,021
2034 1,021,368 70,751,094
2033 1,000,876 70,891,510
2032 980,211 71,019,665
2031 959,672 71,134,882
2030 939,186 71,241,584
2029 918,810 71,337,147
2028 898,552 71,423,119
2027 878,392 71,499,411
2026 858,453 71,565,981
2025 838,645 71,619,863
2024 819,198 71,668,011
2023 800,005 71,702,435
2022 781,066 71,735,329
2021 762,591 71,727,332
2020 744,498 71,641,484
2019 728,147 71,522,271
2018 709,101 71,376,079
2017 685,672 71,160,187
2016 662,379 70,859,841
2015 639,415 70,540,795
2014 616,908 70,216,367
2013 594,945 69,845,114
2012 573,606 69,436,098
2011 552,945 69,007,208
2010 532,968 68,579,447
2009 518,141 68,121,080
2008 508,790 67,619,830
2007 500,156 67,102,394
2006 491,594 66,567,687
2005 483,080 66,017,420
2004 474,611 65,452,047
2003 466,154 64,868,166
2002 457,671 64,266,437
2001 449,125 63,651,141
2000 440,469 63,007,815
1999 430,500 62,299,043
1998 419,071 61,522,630
1997 407,474 60,724,584
1996 396,009 59,920,064
1995 384,733 59,098,232
1994 373,675 58,260,854
1993 362,839 57,408,198
1992 352,205 56,528,834
1991 341,738 55,637,434
1990 331,435 54,738,329
1989 321,282 53,848,956
1988 311,265 52,969,595
1987 301,414 52,074,105
1986 291,842 51,177,834
1985 282,455 50,270,753
1984 273,163 49,351,708
1983 264,068 48,423,309
1982 255,200 47,494,577
1981 246,555 46,575,855
1980 238,135 45,650,022
1979 229,953 44,718,434
1978 222,029 43,788,976
1977 214,418 42,843,974
1976 207,194 41,896,504
1975 200,744 40,940,005
1974 195,041 39,952,891
1973 189,774 38,947,787
1972 184,994 37,933,929
1971 180,637 36,937,387
1970 176,579 35,954,408
1969 172,476 34,973,782
1968 168,282 34,002,560
1967 164,245 33,037,801
1966 160,393 32,086,071
1965 156,686 31,149,337
1964 153,085 30,232,141
1963 149,589 29,342,322
1962 146,201 28,481,040
1961 142,912 27,650,334
1960 139,688 26,851,747

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/solomon-islands/thailand | CC BY

From 2006 to 2016, the population of the Solomon Islands increased by 170,785 people (a 34.7% growth), while Thailand gained 4,292,154 people (a 6.45% growth).

For the next 10 years, from 2016 to 2026, the Solomon Islands gained 206,315 people (a 31.1% growth), while Thailand's population increased by 706,140 people (a 1% growth).

The Solomon Islands was ranked 165th most populous country in 2006 and is 161st in 2026. Thailand was ranked 19th in 2006 and ranked 21st now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) the Solomon Islands' population will grow by 51.5% to 1,316,163 people with a rank change from 161st to 156th. The population of Thailand will decrease by 7% to 66,552,915 people and rank change from 21st to 31st.

The Solomon Islands is projected to reach its peak in 2100 at 1.87M people, while Thailand's population already peaked in 2022 at 71.7M people and is projected to decrease to 45.7M people by 2100.

Population growth rate by year

Solomon Islands
Factual

Projection
Thailand
Factual

Projection
1x
Year Growth rate
Solomon Islands Thailand
2100 0.22% -0.75%
2099 0.23% -0.75%
2098 0.25% -0.76%
2097 0.26% -0.77%
2096 0.29% -0.77%
2095 0.29% -0.77%
2094 0.32% -0.77%
2093 0.35% -0.78%
2092 0.36% -0.77%
2091 0.38% -0.78%
2090 0.39% -0.78%
2089 0.41% -0.77%
2088 0.42% -0.77%
2087 0.44% -0.77%
2086 0.46% -0.77%
2085 0.48% -0.78%
2084 0.5% -0.77%
2083 0.52% -0.77%
2082 0.54% -0.76%
2081 0.57% -0.77%
2080 0.58% -0.77%
2079 0.61% -0.77%
2078 0.63% -0.76%
2077 0.66% -0.76%
2076 0.67% -0.76%
2075 0.68% -0.77%
2074 0.72% -0.77%
2073 0.74% -0.77%
2072 0.77% -0.76%
2071 0.79% -0.77%
2070 0.81% -0.77%
2069 0.84% -0.77%
2068 0.86% -0.76%
2067 0.88% -0.76%
2066 0.9% -0.77%
2065 0.93% -0.76%
2064 0.95% -0.76%
2063 0.97% -0.76%
2062 1% -0.75%
2061 1.01% -0.75%
2060 1.04% -0.74%
2059 1.07% -0.73%
2058 1.08% -0.72%
2057 1.11% -0.71%
2056 1.14% -0.69%
2055 1.16% -0.68%
2054 1.19% -0.65%
2053 1.22% -0.64%
2052 1.24% -0.61%
2051 1.28% -0.59%
2050 1.3% -0.57%
2049 1.33% -0.53%
2048 1.36% -0.51%
2047 1.39% -0.49%
2046 1.43% -0.46%
2045 1.46% -0.43%
2044 1.5% -0.41%
2043 1.54% -0.39%
2042 1.56% -0.37%
2041 1.61% -0.34%
2040 1.68% -0.32%
2039 1.75% -0.3%
2038 1.81% -0.28%
2037 1.88% -0.25%
2036 1.95% -0.24%
2035 2% -0.21%
2034 2.05% -0.2%
2033 2.11% -0.18%
2032 2.14% -0.16%
2031 2.18% -0.15%
2030 2.22% -0.13%
2029 2.25% -0.12%
2028 2.3% -0.11%
2027 2.32% -0.09%
2026 2.36% -0.08%
2025 2.37% -0.07%
2024 2.4% -0.05%
2023 2.42% -0.05%
2022 2.42% 0.01%
2021 2.43% 0.12%
2020 2.25% 0.17%
2019 2.69% 0.2%
2018 3.42% 0.3%
2017 3.52% 0.42%
2016 3.59% 0.45%
2015 3.65% 0.46%
2014 3.69% 0.53%
2013 3.72% 0.59%
2012 3.74% 0.62%
2011 3.75% 0.62%
2010 2.86% 0.67%
2009 1.84% 0.74%
2008 1.73% 0.77%
2007 1.74% 0.8%
2006 1.76% 0.83%
2005 1.78% 0.86%
2004 1.81% 0.9%
2003 1.85% 0.94%
2002 1.9% 0.97%
2001 1.97% 1.02%
2000 2.32% 1.14%
1999 2.73% 1.26%
1998 2.85% 1.31%
1997 2.9% 1.34%
1996 2.93% 1.39%
1995 2.96% 1.44%
1994 2.99% 1.49%
1993 3.02% 1.56%
1992 3.06% 1.6%
1991 3.11% 1.64%
1990 3.16% 1.65%
1989 3.22% 1.66%
1988 3.27% 1.72%
1987 3.28% 1.75%
1986 3.32% 1.8%
1985 3.4% 1.86%
1984 3.44% 1.92%
1983 3.47% 1.96%
1982 3.51% 1.97%
1981 3.54% 2.03%
1980 3.56% 2.08%
1979 3.57% 2.12%
1978 3.55% 2.21%
1977 3.49% 2.26%
1976 3.21% 2.34%
1975 2.92% 2.47%
1974 2.78% 2.58%
1973 2.58% 2.67%
1972 2.41% 2.7%
1971 2.3% 2.73%
1970 2.38% 2.8%
1969 2.49% 2.86%
1968 2.46% 2.92%
1967 2.4% 2.97%
1966 2.37% 3.01%
1965 2.35% 3.03%
1964 2.34% 3.03%
1963 2.32% 3.02%
1962 2.3% 3%
1961 2.31% 2.97%

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/solomon-islands/thailand | CC BY

In 2025, the population of the Solomon Islands grew by 2.37%, while Thailand's population declined by 0.07%.

Live population counters

Solomon Islands Thailand
Current population
868694
71565981
Population rank 161/197 21/197
Percent of world population 0.01% 0.86%
One net population change
27.1 minutes
10.9 minutes
One birth every
24 minutes
54.2 seconds
One death every
2.1 hours
48.7 seconds
Daily growth/decline +53 -132
Annual growth/decline +19,447 -48,148
Annual growth/decline rate +2.37% -0.07%
Population growth rate rank 32/197 164/197
One migration net change every
5.39 hours
19.2 minutes
Annual migration change +1,631 +27,509
Net migration rank 59/196 30/196
Foreign-born residents 2,469 3,179,399
Foreign-born residents rank 192/195 21/195
Foreign-born share of population 0.3% 4.4%
Foreign-born share rank 184/195 100/195

Natural population change vs migration

Solomon Islands
Natural

Migration
Thailand
Natural

Migration
1x
Year Population change
Solomon Islands Thailand
Natural Migration Natural Migration
2025 - 1,631 - 27,509
2024 17,715 1,610 -65,720 23,321
2023 17,436 1,636 -46,105 19,648
2022 17,253 1,567 -61,046 21,683
2021 16,626 1,499 57,382 -2,093
2020 16,488 1,556 84,107 32,277
2019 16,649 -1,990 116,867 5,221
2018 16,790 6,653 159,383 10,984
2017 16,897 6,513 194,695 66,805
2016 17,027 6,146 226,255 112,978
2015 16,909 5,853 266,362 32,500
2014 16,652 5,598 294,628 55,358
2013 16,038 5,631 325,059 67,452
2012 15,585 5,420 351,485 74,033
2011 15,095 5,219 365,670 66,607
2010 14,604 5,040 370,466 52,791
2009 14,381 -4,360 382,636 110,883
2008 14,225 -5,538 401,730 107,333
2007 13,963 -5,383 425,362 100,486
2006 13,799 -5,262 441,211 102,362
2005 13,568 -5,082 456,378 100,542
2004 13,444 -4,985 466,542 107,199
2003 13,344 -4,881 488,003 105,917
2002 13,195 -4,691 504,299 105,215
2001 13,061 -4,474 524,230 96,817
2000 12,938 -4,219 543,884 121,640
1999 12,809 -1,588 578,073 173,924
1998 12,658 -1,019 617,318 183,471
1997 12,478 -931 644,834 150,411
1996 12,328 -947 661,397 152,397
1995 12,124 -952 682,703 147,226
1994 11,771 -828 712,589 132,271
1993 11,396 -665 737,696 122,746
1992 11,029 -482 754,999 143,318
1991 10,789 -410 760,508 124,034
1990 10,561 -335 760,808 152,916
1989 10,354 -270 774,563 90,497
1988 10,142 -197 765,252 128,469
1987 9,943 -179 774,498 122,791
1986 9,656 -269 783,430 111,820
1985 9,534 -150 776,935 141,963
1984 9,299 -102 779,856 139,345
1983 9,011 -30 794,239 143,393
1982 8,720 40 817,951 101,885
1981 8,436 99 839,297 78,337
1980 8,156 151 845,575 88,478
1979 7,874 188 843,434 85,693
1978 7,598 174 847,799 82,011
1977 7,290 159 871,232 88,937
1976 7,058 -48 894,072 40,656
1975 6,635 -760 911,980 66,306
1974 6,612 -1,084 923,151 72,801
1973 6,343 -1,329 933,540 80,704
1972 6,074 -1,520 940,420 73,082
1971 5,814 -1,646 936,215 43,400
1970 5,575 -1,632 937,116 49,221
1969 5,444 -1,187 948,314 26,551
1968 5,285 -1,154 953,806 13,718
1967 5,151 -1,213 944,980 17,005
1966 5,028 -1,256 929,469 12,016
1965 4,885 -1,237 909,000 22,995
1964 4,747 -1,200 885,137 17,249
1963 4,571 -1,129 860,728 16,494
1962 4,408 -1,073 828,741 16,605
1961 4,257 -1,016 801,140 14,968
1960 4,119 -917 774,190 6,886

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

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

Over the last 10 years, 84.5% of the population change in the Solomon Islands is from natural causes (a gain of 169,790 people) and 15.5% is from migration (a gain of 31,043 people). In Thailand 74.2% is from natural causes (a gain of 932,180 people) and 25.8% is from migration (a gain of 323,324 people).

As of 2024, 2,469 residents or 0.3% of the population were not native-born in the Solomon Islands, compared to 3,179,399 people or 4.4% in Thailand.

Biggest cities by population

Solomon Islands
City Population
Honiara 84.5K
Auki 6.81K
Thailand
City Population
Bangkok 5.68M
Chiang Mai 1.2M
Nonthaburi 256K
Pak Kret 190K
Hat Yai 159K
Nakhon Ratchasima 134K
Chaophraya Surasak 133K
Surat Thani 131K
Udon Thani 130K
Klaeng 130K

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/solomon-islands/thailand | 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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