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

Updated on by Georank

The latest officially reported population of Sierra Leone was 8,819,794 in 2025 vs 838,645 people in the Solomon Islands in 2025. In 2026, based on the adjusted UN estimation, the current Sierra Leone's population is 9,090,531 people compared to 868,694 in the Solomon Islands.

Population statistics:

  • Sierra Leone's population is 10.5 times bigger than the Solomon Islands'.
  • Sierra Leone is ranked the 100th most populous country in the world, while the Solomon Islands is the 161st.
  • The countries together account for 0.12% of the world: 0.11% for Sierra Leone vs 0.01% for the Solomon Islands.
  • For the last 10 years, Sierra Leone has had an average growth rate of +2.29% per year vs +2.83% in the Solomon Islands.
  • Since 2006, the population of Sierra Leone has increased from 5.62M people to 9.09M (61.6% growth), while the Solomon Islands has grown from 492K to 869K (76.7% growth).

Sierra Leone vs Solomon Islands: population by year and forecast

Sierra Leone
Factual

Projection
Solomon Islands
Factual

Projection
1x
Year Population
Sierra Leone Solomon Islands
2100 16,107,087 1,869,132
2099 16,121,940 1,865,051
2098 16,135,035 1,860,822
2097 16,149,905 1,856,197
2096 16,160,672 1,851,361
2095 16,169,304 1,846,006
2094 16,168,902 1,840,576
2093 16,173,609 1,834,659
2092 16,170,778 1,828,323
2091 16,163,901 1,821,781
2090 16,154,165 1,814,933
2089 16,142,526 1,807,885
2088 16,128,775 1,800,523
2087 16,112,585 1,792,919
2086 16,085,549 1,784,993
2085 16,064,212 1,776,798
2084 16,040,563 1,768,230
2083 16,006,923 1,759,388
2082 15,970,872 1,750,221
2081 15,930,880 1,740,741
2080 15,892,665 1,730,900
2079 15,850,728 1,720,938
2078 15,801,450 1,710,578
2077 15,750,408 1,699,838
2076 15,695,310 1,688,671
2075 15,635,345 1,677,384
2074 15,580,279 1,665,984
2073 15,512,655 1,654,063
2072 15,442,481 1,641,845
2071 15,370,747 1,629,270
2070 15,293,426 1,616,540
2069 15,212,664 1,603,485
2068 15,124,069 1,590,112
2067 15,028,190 1,576,525
2066 14,931,295 1,562,815
2065 14,833,794 1,548,873
2064 14,736,872 1,534,676
2063 14,638,180 1,520,167
2062 14,525,736 1,505,610
2061 14,420,068 1,490,754
2060 14,307,451 1,475,849
2059 14,194,972 1,460,639
2058 14,077,124 1,445,210
2057 13,957,197 1,429,794
2056 13,832,494 1,414,149
2055 13,702,508 1,398,271
2054 13,576,231 1,382,259
2053 13,440,929 1,366,025
2052 13,299,910 1,349,539
2051 13,152,910 1,332,975
2050 13,006,688 1,316,163
2049 12,863,637 1,299,210
2048 12,712,671 1,282,103
2047 12,566,944 1,264,854
2046 12,411,042 1,247,457
2045 12,254,651 1,229,853
2044 12,088,895 1,212,131
2043 11,928,393 1,194,206
2042 11,767,372 1,176,128
2041 11,599,942 1,158,032
2040 11,428,331 1,139,694
2039 11,259,845 1,120,879
2038 11,097,180 1,101,654
2037 10,928,754 1,082,017
2036 10,757,928 1,062,068
2035 10,582,918 1,041,799
2034 10,411,088 1,021,368
2033 10,238,503 1,000,876
2032 10,059,929 980,211
2031 9,881,109 959,672
2030 9,705,485 939,186
2029 9,529,493 918,810
2028 9,358,412 898,552
2027 9,177,288 878,392
2026 8,998,902 858,453
2025 8,819,794 838,645
2024 8,642,022 819,198
2023 8,460,512 800,005
2022 8,276,807 781,066
2021 8,094,602 762,591
2020 7,912,558 744,498
2019 7,731,991 728,147
2018 7,554,563 709,101
2017 7,379,299 685,672
2016 7,205,328 662,379
2015 7,037,655 639,415
2014 6,876,385 616,908
2013 6,714,051 594,945
2012 6,551,080 573,606
2011 6,387,251 552,945
2010 6,222,714 532,968
2009 6,055,646 518,141
2008 5,894,722 508,790
2007 5,749,352 500,156
2006 5,624,466 491,594
2005 5,501,712 483,080
2004 5,355,717 474,611
2003 5,177,687 466,154
2002 4,971,435 457,671
2001 4,692,716 449,125
2000 4,423,611 440,469
1999 4,318,043 430,500
1998 4,295,785 419,071
1997 4,253,716 407,474
1996 4,199,210 396,009
1995 4,179,179 384,733
1994 4,173,105 373,675
1993 4,157,130 362,839
1992 4,166,366 352,205
1991 4,246,267 341,738
1990 4,196,828 331,435
1989 4,034,037 321,282
1988 3,934,517 311,265
1987 3,829,718 301,414
1986 3,728,380 291,842
1985 3,638,438 282,455
1984 3,558,758 273,163
1983 3,481,646 264,068
1982 3,408,183 255,200
1981 3,338,940 246,555
1980 3,272,089 238,135
1979 3,207,499 229,953
1978 3,145,517 222,029
1977 3,085,354 214,418
1976 3,028,820 207,194
1975 2,974,657 200,744
1974 2,920,459 195,041
1973 2,866,955 189,774
1972 2,814,388 184,994
1971 2,763,222 180,637
1970 2,712,286 176,579
1969 2,661,365 172,476
1968 2,611,532 168,282
1967 2,562,384 164,245
1966 2,514,638 160,393
1965 2,468,666 156,686
1964 2,424,390 153,085
1963 2,382,258 149,589
1962 2,342,242 146,201
1961 2,304,227 142,912
1960 2,268,356 139,688

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/sierra-leone/solomon-islands | CC BY

From 2006 to 2016, the population of Sierra Leone increased by 1,580,862 people (a 28.1% growth), while the Solomon Islands gained 170,785 people (a 34.7% growth).

For the next 10 years, from 2016 to 2026, Sierra Leone gained 1,885,203 people (a 26.2% growth), while the Solomon Islands' population increased by 206,315 people (a 31.1% growth).

Sierra Leone was ranked 105th most populous country in 2006 and is 100th in 2026. The Solomon Islands was ranked 165th in 2006 and ranked 161st now.

The UN's World Population Prospects forecasts that in 24 years (in 2050) Sierra Leone's population will grow by 43.1% to 13,006,688 people with a rank change from 100th to 91st. The population of the Solomon Islands will increase by 51.5% to 1,316,163 people and rank change from 161st to 156th.

Sierra Leone is projected to reach its peak in 2093 at 16.2M people compared to the peak of 1.87M people in 2100 for the Solomon Islands.

Population growth rate by year

Sierra Leone
Factual

Projection
Solomon Islands
Factual

Projection
1x
Year Growth rate
Sierra Leone Solomon Islands
2100 -0.09% 0.22%
2099 -0.08% 0.23%
2098 -0.09% 0.25%
2097 -0.07% 0.26%
2096 -0.05% 0.29%
2095 0.002% 0.29%
2094 -0.03% 0.32%
2093 0.02% 0.35%
2092 0.04% 0.36%
2091 0.06% 0.38%
2090 0.07% 0.39%
2089 0.09% 0.41%
2088 0.1% 0.42%
2087 0.17% 0.44%
2086 0.13% 0.46%
2085 0.15% 0.48%
2084 0.21% 0.5%
2083 0.23% 0.52%
2082 0.25% 0.54%
2081 0.24% 0.57%
2080 0.26% 0.58%
2079 0.31% 0.61%
2078 0.32% 0.63%
2077 0.35% 0.66%
2076 0.38% 0.67%
2075 0.35% 0.68%
2074 0.44% 0.72%
2073 0.45% 0.74%
2072 0.47% 0.77%
2071 0.51% 0.79%
2070 0.53% 0.81%
2069 0.59% 0.84%
2068 0.64% 0.86%
2067 0.65% 0.88%
2066 0.66% 0.9%
2065 0.66% 0.93%
2064 0.67% 0.95%
2063 0.77% 0.97%
2062 0.73% 1%
2061 0.79% 1.01%
2060 0.79% 1.04%
2059 0.84% 1.07%
2058 0.86% 1.08%
2057 0.9% 1.11%
2056 0.95% 1.14%
2055 0.93% 1.16%
2054 1.01% 1.19%
2053 1.06% 1.22%
2052 1.12% 1.24%
2051 1.12% 1.28%
2050 1.11% 1.3%
2049 1.19% 1.33%
2048 1.16% 1.36%
2047 1.26% 1.39%
2046 1.28% 1.43%
2045 1.37% 1.46%
2044 1.35% 1.5%
2043 1.37% 1.54%
2042 1.44% 1.56%
2041 1.5% 1.61%
2040 1.5% 1.68%
2039 1.47% 1.75%
2038 1.54% 1.81%
2037 1.59% 1.88%
2036 1.65% 1.95%
2035 1.65% 2%
2034 1.69% 2.05%
2033 1.78% 2.11%
2032 1.81% 2.14%
2031 1.81% 2.18%
2030 1.85% 2.22%
2029 1.83% 2.25%
2028 1.97% 2.3%
2027 1.98% 2.32%
2026 2.03% 2.36%
2025 2.06% 2.37%
2024 2.15% 2.4%
2023 2.22% 2.42%
2022 2.25% 2.42%
2021 2.3% 2.43%
2020 2.34% 2.25%
2019 2.35% 2.69%
2018 2.38% 3.42%
2017 2.41% 3.52%
2016 2.38% 3.59%
2015 2.35% 3.65%
2014 2.42% 3.69%
2013 2.49% 3.72%
2012 2.56% 3.74%
2011 2.64% 3.75%
2010 2.76% 2.86%
2009 2.73% 1.84%
2008 2.53% 1.73%
2007 2.22% 1.74%
2006 2.23% 1.76%
2005 2.73% 1.78%
2004 3.44% 1.81%
2003 4.15% 1.85%
2002 5.94% 1.9%
2001 6.08% 1.97%
2000 2.44% 2.32%
1999 0.52% 2.73%
1998 0.99% 2.85%
1997 1.3% 2.9%
1996 0.48% 2.93%
1995 0.15% 2.96%
1994 0.38% 2.99%
1993 -0.22% 3.02%
1992 -1.88% 3.06%
1991 1.18% 3.11%
1990 4.04% 3.16%
1989 2.53% 3.22%
1988 2.74% 3.27%
1987 2.72% 3.28%
1986 2.47% 3.32%
1985 2.24% 3.4%
1984 2.21% 3.44%
1983 2.16% 3.47%
1982 2.07% 3.51%
1981 2.04% 3.54%
1980 2.01% 3.56%
1979 1.97% 3.57%
1978 1.95% 3.55%
1977 1.87% 3.49%
1976 1.82% 3.21%
1975 1.86% 2.92%
1974 1.87% 2.78%
1973 1.87% 2.58%
1972 1.85% 2.41%
1971 1.88% 2.3%
1970 1.91% 2.38%
1969 1.91% 2.49%
1968 1.92% 2.46%
1967 1.9% 2.4%
1966 1.86% 2.37%
1965 1.83% 2.35%
1964 1.77% 2.34%
1963 1.71% 2.32%
1962 1.65% 2.3%
1961 1.58% 2.31%

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/sierra-leone/solomon-islands | CC BY

In 2025, the population of Sierra Leone grew by 2.06%, while the Solomon Islands' population grew by 2.37%.

Live population counters

Sierra Leone Solomon Islands
Current population
9090531
868694
Population rank 100/197 161/197
Percent of world population 0.11% 0.01%
One net population change
2.96 minutes
27.1 minutes
One birth every
2.02 minutes
24 minutes
One death every
7.41 minutes
2.1 hours
Daily growth/decline +487 +53
Annual growth/decline +177,772 +19,447
Annual growth/decline rate +2.06% +2.37%
Population growth rate rank 47/197 32/197
One migration net change every
46.6 minutes
5.39 hours
Annual migration change -11,309 +1,631
Net migration rank 136/196 59/196
Foreign-born residents 49,997 2,469
Foreign-born residents rank 151/195 192/195
Foreign-born share of population 0.6% 0.3%
Foreign-born share rank 174/195 184/195

Natural population change vs migration

Sierra Leone
Natural

Migration
Solomon Islands
Natural

Migration
1x
Year Population change
Sierra Leone Solomon Islands
Natural Migration Natural Migration
2025 - -11,309 - 1,631
2024 189,234 -11,000 17,715 1,610
2023 188,788 -4,000 17,436 1,636
2022 186,625 -4,000 17,253 1,567
2021 183,326 -1,544 16,626 1,499
2020 181,015 1,292 16,488 1,556
2019 181,068 -2,238 16,649 -1,990
2018 178,772 -2,741 16,790 6,653
2017 173,259 1,234 16,897 6,513
2016 168,784 4,657 17,027 6,146
2015 162,275 -356 16,909 5,853
2014 160,137 485 16,652 5,598
2013 161,265 2,773 16,038 5,631
2012 160,915 988 15,585 5,420
2011 158,858 6,895 15,095 5,219
2010 155,338 7,983 14,604 5,040
2009 152,669 18,145 14,381 -4,360
2008 149,855 1,182 14,225 -5,538
2007 145,740 -6,042 13,963 -5,383
2006 144,127 -34,052 13,799 -5,262
2005 137,234 -1,805 13,568 -5,082
2004 132,661 23,897 13,444 -4,985
2003 130,312 69,185 13,344 -4,881
2002 126,429 86,578 13,195 -4,691
2001 116,647 227,791 13,061 -4,474
2000 110,754 83,013 12,938 -4,219
1999 102,295 -84,926 12,809 -1,588
1998 103,906 -76,766 12,658 -1,019
1997 105,433 -48,437 12,478 -931
1996 104,140 -52,110 12,328 -947
1995 100,885 -112,857 12,124 -952
1994 101,486 -77,371 11,771 -828
1993 103,317 -95,476 11,396 -665
1992 103,251 -129,565 11,029 -482
1991 105,477 -238,965 10,789 -410
1990 100,778 131,587 10,561 -335
1989 98,298 -5,079 10,354 -270
1988 96,344 9,470 10,142 -197
1987 94,235 9,558 9,943 -179
1986 90,902 7,992 9,656 -269
1985 88,869 -7,873 9,534 -150
1984 87,072 -8,708 9,299 -102
1983 84,628 -8,783 9,011 -30
1982 82,457 -11,379 8,720 40
1981 80,111 -12,699 8,436 99
1980 77,932 -11,641 8,156 151
1979 75,992 -13,095 7,874 188
1978 74,130 -13,073 7,598 174
1977 71,663 -12,399 7,290 159
1976 69,506 -15,686 7,058 -48
1975 67,560 -13,058 6,635 -760
1974 65,357 -11,473 6,612 -1,084
1973 62,443 -9,322 6,343 -1,329
1972 60,279 -8,267 6,074 -1,520
1971 58,484 -8,162 5,814 -1,646
1970 56,513 -4,957 5,575 -1,632
1969 54,768 -4,485 5,444 -1,187
1968 53,126 -3,743 5,285 -1,154
1967 51,734 -2,819 5,151 -1,213
1966 49,486 -2,911 5,028 -1,256
1965 47,223 -1,851 4,885 -1,237
1964 45,487 -2,308 4,747 -1,200
1963 43,569 -2,480 4,571 -1,129
1962 41,603 -2,658 4,408 -1,073
1961 40,022 -2,947 4,257 -1,016
1960 38,192 -3,528 4,119 -917

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

GeoRank.org/population/sierra-leone/solomon-islands | CC BY

Over the last 10 years, 99% of the population change in Sierra Leone is from natural causes (a gain of 1,793,146 people) and 1.03% is from migration (a loss of 18,696 people). In the Solomon Islands 84.5% is from natural causes (a gain of 169,790 people) and 15.5% is from migration (a gain of 31,043 people).

As of 2024, 49,997 residents or 0.6% of the population were not native-born in Sierra Leone, compared to 2,469 people or 0.3% in the Solomon Islands.

Biggest cities by population

Sierra Leone
City Population
Freetown 951K
Bo 234K
Kenema 188K
Solomon Islands
City Population
Honiara 84.5K
Auki 6.81K

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/sierra-leone/solomon-islands | 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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