Solomon Islands population pyramid 2026

Oceania · Melanesia

858,288 people in 2026 (projected). Solomon Islands has a broad, smooth pyramid with more males than females overall, and its population is projected to more than double by 2100.

2026 population
858.3Krank 165 of 237
Median age
20.9 yearsoldest rank 190
Fertility rate
3.42births per woman · above replacement
Structure
Youthful3.7% age 65+

Solomon Islands population pyramid

2026 · Share of total by five-year age group and sex

Medium projection

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2026

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SVG CSV by age CSV by year

Estimate or projection?

The UN series provides historical estimates through 2023. Figures from 2024 onward—including 2026—are medium-scenario projections, not counts or predictions guaranteed to occur.

Solomon Islands age distribution in 2026

Children under 15 account for 36.1% of the population, while 3.7% are aged 65 or older. The remaining 60.2% are in the conventional working-age range of 15–64. On these shares, the site classifies Solomon Islands’s age structure as youthful; the guide to expansive population pyramids explains what that shape implies.

The total age dependency ratio is 66.2: about 66 people under 15 or 65+ for every 100 people aged 15–64 (60.0 children and 6.2 older people). This is an age-balance indicator, not a literal count of economic dependants per worker.

What shapes Solomon Islands’s population pyramid

A textbook triangle, slowly changing

Fertility in Solomon Islands stayed at about 7 children per woman from 1950 to 1980, while infant mortality fell from about 144 to 41 per 1,000 births, so each new cohort was markedly larger than the last. The result was an exceptionally regular pyramid: in 2000 each five-year band below age 30 was about an eighth smaller than the one below it and 43% of the population was under 15.

Fertility has since fallen to about 3.6 in 2023, and the base now tapers less steeply. In 2026 the 0–4, 5–9 and 10–14 bands are much closer in size than in 2000. With births still about five times deaths, the population grows by more than 2% a year.

More males than females

Unusually, males outnumber females overall, at about 105 per 100. About 107 boys are born per 100 girls, at the upper end of the normal range, and the gap in life expectancy between women and men is under three years, much narrower than in most countries. As a result men remain in the majority up to about 70.

The 1950 estimates show an even stronger male surplus at older ages, a pattern reported for several Melanesian populations at the time and sometimes attributed to high maternal mortality, although early data for small Pacific populations are uncertain.

Doubling by 2100

The 2026 age structure most resembles those of Comoros, Ghana and Pakistan. Under the UN medium scenario the population rises from about 860,000 in 2026 to 1.3 million in 2050 and about 1.85 million in 2100, still growing. By then the pyramid has become nearly column-shaped up to age 55, with about 18% of people aged 65 or over. The guide to the age dependency ratio explains what this shift means for the balance between working-age adults and dependants.

What to notice across the years

Solomon Islands population pyramid 1950 (historical estimate)
1950. Men outnumber women at almost every adult age, by roughly 55–75% at ages 55–69.
Solomon Islands population pyramid 2000 (historical estimate)
2000. Below age 30 each band is about an eighth smaller than the one below it, a smooth triangle with 43% of people under 15.
Solomon Islands population pyramid 2026 (UN medium projection)
2026. The base is still widest at 0–4, but the three youngest bands now differ in size by less than 8%.

Distinctive cohorts and turning points

No five-year band under age 80 is more than 10% larger or smaller than both of its neighbours, so Solomon Islands’s 2026 pyramid has a comparatively smooth profile without sharp bulges or notches.

In the UN medium scenario births outnumber deaths in every year through 2100. Children under 15 outnumber people aged 65 and older in every pyramid year through 2100.

Births, deaths, and migration

A pyramid changes in only three ways: births add to the base, deaths remove people at every age, and migration adds or removes people mainly in young adulthood. In 2026, Solomon Islands is projected to record 22,440 births (about 61 births a day) and 4,297 deaths, a natural increase of 18,143. Net migration adds +1,570 people, ranking #56 in the net migration rate ranking.

Between 2000 and 2023 the UN estimates 446,445 births, 80,481 deaths, and cumulative net migration of +7,466. Over that period the balance of births and deaths moved the total more than migration did. See how migration shapes a pyramid and birth rate versus fertility rate. The medium scenario assumes net migration of −7,792 between 2026 and 2050.

Solomon Islands: births, deaths, and net migration per year
Projection → -10K010K20K30K 1950197520002025205020752100 BirthsDeathsNet migration

Annual values 1950–2100; dashed lines after 2023 are the UN medium projection. The trend table below lists the values by decade.

Life expectancy and mortality

Life expectancy, women
72.5 years43.8 in 1950
Life expectancy, men
69.6 years39.9 in 1950
Further years at 65
13.8 yearsboth sexes
Infant mortality
13.2per 1,000 births · 144 in 1950
Under-five mortality
16.2per 1,000 births
Mother’s mean age at birth
29.1 yearssex ratio at birth 107.0

Women in Solomon Islands are projected to live 2.9 years longer than men, which is why the female side of the pyramid widens relative to the other at older ages (see the life expectancy gap ranking). Infant mortality has fallen from 144 to 13.2 deaths per 1,000 live births since 1950, ranking #86 of 237 in the infant mortality ranking (highest first). A mean age at childbearing of 29.1 years sets the spacing between generations, and so how far apart echo cohorts sit in the pyramid.

Median age, fertility rate, and global ranks for Solomon Islands

The median age of 20.9 years splits the population into two equal halves. A total fertility rate of 3.42 births per woman is above the replacement level of roughly 2.1, and life expectancy at birth is 71.0 years.

These ranks compare all 237 countries and areas in this dataset using the same 2026 UN medium projection. Ranks use the stored source precision, so displayed rounding can make adjacent values look identical; small differences should not be overinterpreted.

Indicator2026 valueGlobal rankRanking direction
Population858,288#165Largest first
Median age20.9 years#190Oldest first
Fertility rate3.42#45Highest first
Annual growth+2.3%#29Fastest first
Life expectancy71.0 years#170Highest first
Population aged 65+3.7%#193Highest share first

Largest age groups in Solomon Islands

The five largest cohorts identify where the 2026 population is concentrated. They can reflect past birth patterns, survival, and migration; the chart alone does not establish which cause dominates.

RankAge groupPopulationShare of totalMale / female
10–4107,48812.5%55.5K / 52K
25–9102,76412.0%53K / 49.7K
310–1499,73111.6%51.4K / 48.3K
415–1988,04910.3%45.6K / 42.5K
520–2479,0969.2%40.6K / 38.5K

Sex ratio and the balance by age

In the 2026 projection, Solomon Islands has 438,798 males and 419,490 females. That is 104.6 males per 100 females, ranking #26 when the dataset is ordered from the highest male-to-female ratio to the lowest.

Males account for 51.1% of the population and females for 48.9%. There are 19,308 more males than females overall. Among people aged 65 and older, the ratio is 96.5 males per 100 females.

The overall balance can conceal large differences by age; how sex ratios change with age explains the usual pattern. The ratio reflects the male/female categories in the UN source and is not a measure of gender identity. Compare all profiles in the sex-ratio ranking.

At birth, 107.0 boys are projected to be born for every 100 girls in 2026, close to the biological norm of about 105 (compare the sex ratio at birth ranking). The ratio at birth sets the balance at the base of the pyramid; how it changes with age then depends on survival and migration.

How Solomon Islands has changed since 1950

The population has increased from 108,634 in 1950 to 858,288 in 2026, a change of 690%. Over the same span, median age moved from 16.6 to 20.9 years.

The under-15 share changed from 44.5% to 36.1%, while the share aged 65 and older changed from 4.5% to 3.7%. These shifts show why total population growth and age-structure change need to be read separately.

How the population could change by 2050

Under the UN medium scenario, Solomon Islands’s population is projected to grow by about 53%, reaching 1,309,110 in 2050. The median age changes from 20.9 to 26.4 years.

The 65+ share is projected to rise by 3.4 percentage points to 7.1%. At the same time, the under-15 share is projected at 28.7%. How UN projections work explains the assumptions behind these figures.

The population is still rising at the end of the UN medium projection in 2100, when it reaches 1,849,209. The page therefore does not assign a peak year beyond the available horizon.

Population trend: 1950–2100

Solomon Islands population, 1950–2100
Projection → 0500K1M1.5M2M 1950197520002025205020752100 1.8M

Mid-year population for every year. Estimates through 2023; dashed line shows the UN medium projection.

Selected demographic indicators for Solomon Islands, 1950 to 2100
YearPopulationMedian ageFertilityLife exp.BirthsDeathsNet migrationGrowth
1950108,63416.67.1541.44,8692,6550+2.0%
1960139,68815.77.0647.76,5332,413−917+2.3%
1970176,57915.66.9856.17,8122,238−1,632+2.2%
1980238,13514.86.7763.79,9871,831+151+3.5%
1990331,43515.75.7466.212,6812,119−335+3.1%
2000440,46917.24.7667.115,6122,674−4,219+2.0%
2010532,96818.54.3468.717,6963,092+5,040+3.7%
2020744,49819.63.7569.320,8204,333+1,556+2.4%
2023800,00620.33.5670.521,5484,113+1,636+2.4%
2024*819,19820.53.5170.721,8784,164+1,610+2.4%
2026*858,28820.93.4271.022,4404,297+1,570+2.3%
2030*938,34821.83.2471.523,5634,651+1,339+2.2%
2040*1,135,45524.22.8872.925,5875,953−1,509+1.6%
2050*1,309,11026.42.6174.225,8257,643−1,566+1.3%
2060*1,465,99128.72.4175.526,0689,519−1,809+1.0%
2070*1,603,96531.12.2576.825,82511,397−1,842+0.8%
2080*1,715,56233.52.1278.124,91013,374−1,818+0.6%
2090*1,797,13535.82.0479.524,03715,525−1,737+0.4%
2100*1,849,20937.81.9680.722,85617,273−1,794+0.2%

* 2024 onward is the UN medium projection. Fertility is births per woman; life expectancy is years at birth; births, deaths, and net migration are counts for that calendar year.

Download every year, 1950–2100 (CSV)

2026 population by age and sex

The table provides the counts behind the chart. Age groups are five-year bands, with everyone aged 100 or older combined.

Solomon Islands population by age and sex in 2026
Age groupMaleFemaleTotalShare
0–455,48152,007107,48812.5%
5–953,03549,729102,76412.0%
10–1451,38948,34299,73111.6%
15–1945,59742,45288,04910.3%
20–2440,57138,52579,0969.2%
25–2935,36734,82570,1928.2%
30–3428,93928,34357,2826.7%
35–3926,60626,45653,0626.2%
40–4424,27823,93348,2115.6%
45–4920,97719,90940,8864.8%
50–5417,92216,62834,5504.0%
55–5913,40212,81326,2153.1%
60–649,5829,30318,8852.2%
65–696,5956,36912,9641.5%
70–744,4634,6919,1541.1%
75–792,5662,8815,4470.6%
80–841,2561,4152,6710.3%
85–895966441,2400.1%
90–941571943510.0%
95–991930490.0%
100+1230.0%

Countries with the most similar age structure

These profiles have the 2026 age distributions closest to Solomon Islands’s, measured by the total difference in the share of the population in each five-year band. Similar shapes can arise from very different histories, so the match is a starting point for comparison, not an explanation.

To calculate school-age, working-age, or older groups with other boundaries, use the age-group calculator for Solomon Islands.

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Charts and tables may be reused with attribution. Please link to this page and credit the United Nations as the data source.

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APA

World Population Pyramid. (2026, October 19). Solomon Islands Population Pyramid 2026. https://worldpopulationpyramid.com/countries/solomon-islands/

MLA

“Solomon Islands Population Pyramid 2026.” World Population Pyramid, 19 Oct. 2026, worldpopulationpyramid.com/countries/solomon-islands/.

Chicago

World Population Pyramid. “Solomon Islands Population Pyramid 2026.” Last modified October 19, 2026. https://worldpopulationpyramid.com/countries/solomon-islands/.

Underlying data: United Nations, Department of Economic and Social Affairs, Population Division (2024). World Population Prospects 2024.

Frequently asked questions

What is the population of Solomon Islands in 2026?

Under the UN World Population Prospects 2024 medium scenario, Solomon Islands's population in 2026 is projected at 858,288.

What is the median age in Solomon Islands?

The projected median age in Solomon Islands in 2026 is 20.9 years: half the population is younger and half is older.

What is the fertility rate in Solomon Islands?

The projected total fertility rate in 2026 is 3.42 births per woman, above the replacement level of about 2.1 in low-mortality populations.

Is Solomon Islands's population projected to grow?

Between 2026 and 2050, the UN medium scenario indicates the population will grow by about 53%, from 858.3K to 1.3M.

What share of Solomon Islands is aged 65 or older?

In 2026, 3.7% of the projected population is aged 65 or older. By 2050, the medium scenario places the share at 7.1%.

How many babies are born in Solomon Islands each year?

The UN medium scenario projects 22,440 births and 4,297 deaths in 2026, about 61 births a day. Births exceed deaths by 18,143.

What is life expectancy in Solomon Islands for men and women?

Life expectancy at birth in 2026 is projected at 72.5 years for women and 69.6 years for men, a gap of 2.9 years in favour of women.

Does Solomon Islands have more immigrants or emigrants?

Solomon Islands is projected to gain about 1,570 more people through migration than it loses in 2026. Between 2000 and 2023 the UN estimates cumulative net migration of +7,466.

What is the sex ratio in Solomon Islands?

The projected 2026 population sex ratio is 104.6 males per 100 females. This all-age ratio is different from the sex ratio at birth and can vary substantially by age.

Sources and notes