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

Updated on by Georank

The latest officially reported population of the Solomon Islands was 838,645 in 2025 vs 70,545,865 people in Tanzania in 2025. In 2026, based on the adjusted UN estimation, the current Solomon Islands' population is 868,694 people compared to 73,639,263 in Tanzania.

Population statistics:

  • Tanzania's population is 84.8 times bigger than the Solomon Islands'.
  • The Solomon Islands is ranked the 161st most populous country in the world, while Tanzania is the 20th.
  • The countries together account for 0.9% of the world: 0.01% for the Solomon Islands vs 0.89% for Tanzania.
  • For the last 10 years, the Solomon Islands has had an average growth rate of +2.83% per year vs +3.11% in Tanzania.
  • Since 2006, the population of the Solomon Islands has increased from 492K people to 869K (76.7% growth), while Tanzania has grown from 40.3M to 73.6M (82.8% growth).

Solomon Islands vs Tanzania: population by year and forecast

Solomon Islands
Factual

Projection
Tanzania
Factual

Projection
1x
Year Population
Solomon Islands Tanzania
2100 1,869,132 265,471,550
2099 1,865,051 263,137,702
2098 1,860,822 260,784,676
2097 1,856,197 258,387,890
2096 1,851,361 255,972,277
2095 1,846,006 253,543,248
2094 1,840,576 251,095,452
2093 1,834,659 248,605,184
2092 1,828,323 246,083,651
2091 1,821,781 243,533,968
2090 1,814,933 240,979,094
2089 1,807,885 238,393,867
2088 1,800,523 235,775,056
2087 1,792,919 233,145,231
2086 1,784,993 230,474,072
2085 1,776,798 227,778,580
2084 1,768,230 225,090,075
2083 1,759,388 222,400,079
2082 1,750,221 219,697,321
2081 1,740,741 216,974,796
2080 1,730,900 214,235,505
2079 1,720,938 211,466,096
2078 1,710,578 208,688,171
2077 1,699,838 205,898,494
2076 1,688,671 203,086,766
2075 1,677,384 200,278,383
2074 1,665,984 197,449,196
2073 1,654,063 194,624,081
2072 1,641,845 191,805,820
2071 1,629,270 188,974,004
2070 1,616,540 186,134,634
2069 1,603,485 183,293,747
2068 1,590,112 180,458,385
2067 1,576,525 177,622,538
2066 1,562,815 174,786,430
2065 1,548,873 171,897,059
2064 1,534,676 169,048,435
2063 1,520,167 166,202,091
2062 1,505,610 163,354,473
2061 1,490,754 160,521,858
2060 1,475,849 157,707,240
2059 1,460,639 154,905,240
2058 1,445,210 152,106,040
2057 1,429,794 149,311,257
2056 1,414,149 146,505,507
2055 1,398,271 143,722,840
2054 1,382,259 140,970,467
2053 1,366,025 138,249,490
2052 1,349,539 135,540,803
2051 1,332,975 132,838,721
2050 1,316,163 130,145,345
2049 1,299,210 127,483,126
2048 1,282,103 124,809,212
2047 1,264,854 122,146,647
2046 1,247,457 119,511,124
2045 1,229,853 116,903,642
2044 1,212,131 114,318,843
2043 1,194,206 111,765,580
2042 1,176,128 109,231,423
2041 1,158,032 106,738,458
2040 1,139,694 104,262,479
2039 1,120,879 101,804,600
2038 1,101,654 99,370,760
2037 1,082,017 96,974,485
2036 1,062,068 94,592,848
2035 1,041,799 92,248,476
2034 1,021,368 89,920,872
2033 1,000,876 87,646,627
2032 980,211 85,401,853
2031 959,672 83,172,579
2030 939,186 80,989,443
2029 918,810 78,830,947
2028 898,552 76,723,335
2027 878,392 74,639,948
2026 858,453 72,582,361
2025 838,645 70,545,865
2024 819,198 68,560,157
2023 800,005 66,617,606
2022 781,066 64,711,821
2021 762,591 62,830,412
2020 744,498 60,972,798
2019 728,147 59,174,891
2018 709,101 57,437,145
2017 685,672 55,652,890
2016 662,379 53,824,013
2015 639,415 52,020,962
2014 616,908 50,351,512
2013 594,945 48,824,128
2012 573,606 47,374,260
2011 552,945 46,029,367
2010 532,968 44,758,488
2009 518,141 43,633,982
2008 508,790 42,570,728
2007 500,156 41,435,512
2006 491,594 40,294,902
2005 483,080 39,182,076
2004 474,611 38,109,668
2003 466,154 37,089,555
2002 457,671 36,121,304
2001 449,125 35,198,299
2000 440,469 34,260,139
1999 430,500 33,300,330
1998 419,071 32,420,458
1997 407,474 31,578,089
1996 396,009 30,945,762
1995 384,733 30,383,497
1994 373,675 29,442,356
1993 362,839 28,332,692
1992 352,205 27,457,588
1991 341,738 26,780,436
1990 331,435 26,110,207
1989 321,282 25,438,759
1988 311,265 24,769,686
1987 301,414 24,030,378
1986 291,842 23,258,959
1985 282,455 22,501,693
1984 273,163 21,779,066
1983 264,068 21,079,874
1982 255,200 20,398,571
1981 246,555 19,784,703
1980 238,135 19,189,769
1979 229,953 18,592,038
1978 222,029 17,976,566
1977 214,418 17,352,929
1976 207,194 16,736,211
1975 200,744 16,138,361
1974 195,041 15,561,630
1973 189,774 15,010,101
1972 184,994 14,479,308
1971 180,637 13,971,451
1970 176,579 13,492,677
1969 172,476 13,036,700
1968 168,282 12,602,076
1967 164,245 12,200,109
1966 160,393 11,827,459
1965 156,686 11,470,728
1964 153,085 11,127,826
1963 149,589 10,799,528
1962 146,201 10,487,756
1961 142,912 10,187,886
1960 139,688 9,901,419

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/tanzania | CC BY

From 2006 to 2016, the population of the Solomon Islands increased by 170,785 people (a 34.7% growth), while Tanzania gained 13,529,111 people (a 33.6% growth).

For the next 10 years, from 2016 to 2026, the Solomon Islands gained 206,315 people (a 31.1% growth), while Tanzania's population increased by 19,815,250 people (a 36.8% growth).

The Solomon Islands was ranked 165th most populous country in 2006 and is 161st in 2026. Tanzania was ranked 30th in 2006 and ranked 20th 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 Tanzania will increase by 76.7% to 130,145,345 people and rank change from 20th to 15th.

The Solomon Islands is projected to reach its peak in 2100 at 1.87M people compared to the peak of 265M people in 2100 for Tanzania.

Population growth rate by year

Solomon Islands
Factual

Projection
Tanzania
Factual

Projection
1x
Year Growth rate
Solomon Islands Tanzania
2100 0.22% 0.89%
2099 0.23% 0.9%
2098 0.25% 0.93%
2097 0.26% 0.94%
2096 0.29% 0.96%
2095 0.29% 0.97%
2094 0.32% 1%
2093 0.35% 1.02%
2092 0.36% 1.05%
2091 0.38% 1.06%
2090 0.39% 1.08%
2089 0.41% 1.11%
2088 0.42% 1.13%
2087 0.44% 1.16%
2086 0.46% 1.18%
2085 0.48% 1.19%
2084 0.5% 1.21%
2083 0.52% 1.23%
2082 0.54% 1.25%
2081 0.57% 1.28%
2080 0.58% 1.31%
2079 0.61% 1.33%
2078 0.63% 1.35%
2077 0.66% 1.38%
2076 0.67% 1.4%
2075 0.68% 1.43%
2074 0.72% 1.45%
2073 0.74% 1.47%
2072 0.77% 1.5%
2071 0.79% 1.53%
2070 0.81% 1.55%
2069 0.84% 1.57%
2068 0.86% 1.6%
2067 0.88% 1.62%
2066 0.9% 1.68%
2065 0.93% 1.69%
2064 0.95% 1.71%
2063 0.97% 1.74%
2062 1% 1.76%
2061 1.01% 1.78%
2060 1.04% 1.81%
2059 1.07% 1.84%
2058 1.08% 1.87%
2057 1.11% 1.92%
2056 1.14% 1.94%
2055 1.16% 1.95%
2054 1.19% 1.97%
2053 1.22% 2%
2052 1.24% 2.03%
2051 1.28% 2.07%
2050 1.3% 2.09%
2049 1.33% 2.14%
2048 1.36% 2.18%
2047 1.39% 2.21%
2046 1.43% 2.23%
2045 1.46% 2.26%
2044 1.5% 2.28%
2043 1.54% 2.32%
2042 1.56% 2.34%
2041 1.61% 2.37%
2040 1.68% 2.41%
2039 1.75% 2.45%
2038 1.81% 2.47%
2037 1.88% 2.52%
2036 1.95% 2.54%
2035 2% 2.59%
2034 2.05% 2.59%
2033 2.11% 2.63%
2032 2.14% 2.68%
2031 2.18% 2.7%
2030 2.22% 2.74%
2029 2.25% 2.75%
2028 2.3% 2.79%
2027 2.32% 2.83%
2026 2.36% 2.89%
2025 2.37% 2.9%
2024 2.4% 2.92%
2023 2.42% 2.95%
2022 2.42% 2.99%
2021 2.43% 3.05%
2020 2.25% 3.04%
2019 2.69% 3.03%
2018 3.42% 3.21%
2017 3.52% 3.4%
2016 3.59% 3.47%
2015 3.65% 3.32%
2014 3.69% 3.13%
2013 3.72% 3.06%
2012 3.74% 2.92%
2011 3.75% 2.84%
2010 2.86% 2.58%
2009 1.84% 2.5%
2008 1.73% 2.74%
2007 1.74% 2.83%
2006 1.76% 2.84%
2005 1.78% 2.81%
2004 1.81% 2.75%
2003 1.85% 2.68%
2002 1.9% 2.62%
2001 1.97% 2.74%
2000 2.32% 2.88%
1999 2.73% 2.71%
1998 2.85% 2.67%
1997 2.9% 2.04%
1996 2.93% 1.85%
1995 2.96% 3.2%
1994 2.99% 3.92%
1993 3.02% 3.19%
1992 3.06% 2.53%
1991 3.11% 2.57%
1990 3.16% 2.64%
1989 3.22% 2.7%
1988 3.27% 3.08%
1987 3.28% 3.32%
1986 3.32% 3.37%
1985 3.4% 3.32%
1984 3.44% 3.32%
1983 3.47% 3.34%
1982 3.51% 3.1%
1981 3.54% 3.1%
1980 3.56% 3.21%
1979 3.57% 3.42%
1978 3.55% 3.59%
1977 3.49% 3.68%
1976 3.21% 3.7%
1975 2.92% 3.71%
1974 2.78% 3.67%
1973 2.58% 3.67%
1972 2.41% 3.63%
1971 2.3% 3.55%
1970 2.38% 3.5%
1969 2.49% 3.45%
1968 2.46% 3.29%
1967 2.4% 3.15%
1966 2.37% 3.11%
1965 2.35% 3.08%
1964 2.34% 3.04%
1963 2.32% 2.97%
1962 2.3% 2.94%
1961 2.31% 2.89%

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/tanzania | CC BY

In 2025, the population of the Solomon Islands grew by 2.37%, while Tanzania's population grew by 2.9%.

Live population counters

Solomon Islands Tanzania
Current population
868694
73639263
Population rank 161/197 20/197
Percent of world population 0.01% 0.89%
One net population change
27.1 minutes
15.9 seconds
One birth every
24 minutes
13.2 seconds
One death every
2.1 hours
1.34 minutes
Daily growth/decline +53 +5,440
Annual growth/decline +19,447 +1,985,708
Annual growth/decline rate +2.37% +2.9%
Population growth rate rank 32/197 16/197
One migration net change every
5.39 hours
41.4 minutes
Annual migration change +1,631 -12,730
Net migration rank 59/196 139/196
Foreign-born residents 2,469 462,371
Foreign-born residents rank 192/195 83/195
Foreign-born share of population 0.3% 0.7%
Foreign-born share rank 184/195 167/195

Natural population change vs migration

Solomon Islands
Natural

Migration
Tanzania
Natural

Migration
1x
Year Population change
Solomon Islands Tanzania
Natural Migration Natural Migration
2025 - 1,631 - -12,730
2024 17,715 1,610 1,993,730 -29,865
2023 17,436 1,636 1,960,623 -39,388
2022 17,253 1,567 1,927,960 -37,557
2021 16,626 1,499 1,880,137 -7,704
2020 16,488 1,556 1,861,377 -18,587
2019 16,649 -1,990 1,816,669 -63,602
2018 16,790 6,653 1,777,852 -55,444
2017 16,897 6,513 1,726,909 119,142
2016 17,027 6,146 1,659,502 152,194
2015 16,909 5,853 1,592,882 201,495
2014 16,652 5,598 1,565,630 -21,083
2013 16,038 5,631 1,509,008 1,241
2012 15,585 5,420 1,439,325 -49,875
2011 15,095 5,219 1,384,886 -84,546
2010 14,604 5,040 1,363,477 -122,020
2009 14,381 -4,360 1,332,015 -324,478
2008 14,225 -5,538 1,303,728 -184,816
2007 13,963 -5,383 1,278,285 -126,793
2006 13,799 -5,262 1,257,927 -128,231
2005 13,568 -5,082 1,224,165 -128,251
2004 13,444 -4,985 1,175,379 -126,490
2003 13,344 -4,881 1,118,435 -127,101
2002 13,195 -4,691 1,063,195 -118,047
2001 13,061 -4,474 1,026,242 -125,375
2000 12,938 -4,219 985,185 -9,701
1999 12,809 -1,588 948,659 -4,489
1998 12,658 -1,019 920,806 -105,184
1997 12,478 -931 882,544 -13,400
1996 12,328 -947 868,524 -473,007
1995 12,124 -952 838,980 -109,971
1994 11,771 -828 803,953 349,348
1993 11,396 -665 778,044 288,004
1992 11,029 -482 767,961 -83,825
1991 10,789 -410 762,011 -91,851
1990 10,561 -335 750,825 -80,529
1989 10,354 -270 743,854 -71,268
1988 10,142 -197 736,551 -71,012
1987 9,943 -179 718,580 94,498
1986 9,656 -269 705,677 24,101
1985 9,534 -150 697,867 86,864
1984 9,299 -102 687,435 -26,938
1983 9,011 -30 679,720 58,161
1982 8,720 40 662,627 -37,883
1981 8,436 99 645,496 -42,485
1980 8,156 151 629,444 -42,588
1979 7,874 188 613,388 -4,792
1978 7,598 174 595,024 27,307
1977 7,290 159 574,938 49,997
1976 7,058 -48 553,617 54,875
1975 6,635 -760 533,906 53,290
1974 6,612 -1,084 515,152 51,127
1973 6,343 -1,329 488,429 48,363
1972 6,074 -1,520 467,305 57,489
1971 5,814 -1,646 449,014 41,900
1970 5,575 -1,632 427,988 38,635
1969 5,444 -1,187 408,322 37,006
1968 5,285 -1,154 389,467 34,455
1967 5,151 -1,213 374,763 5,265
1966 5,028 -1,256 360,229 5,049
1965 4,885 -1,237 343,456 4,742
1964 4,747 -1,200 328,527 9,090
1963 4,571 -1,129 314,644 4,333
1962 4,408 -1,073 300,663 3,916
1961 4,257 -1,016 286,839 8,338
1960 4,119 -917 275,814 1,946

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

GeoRank.org/population/solomon-islands/tanzania | 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 Tanzania 98.8% is from natural causes (a gain of 18,197,641 people) and 1.2% is from migration (a gain of 220,684 people).

As of 2024, 2,469 residents or 0.3% of the population were not native-born in the Solomon Islands, compared to 462,371 people or 0.7% in Tanzania.

Biggest cities by population

Solomon Islands
City Population
Honiara 84.5K
Auki 6.81K
Tanzania
City Population
Dar es Salaam 4.72M
Zanzibar 710K
Mwanza 706K
Mbeya 542K
Morogoro 471K
Arusha 416K
Tanga 221K
Dodoma 214K
Moshi 145K

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/tanzania | 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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