Photo: NASA Goddard Space Flight Center/Reto Stöckli

Saint Barthélemy: population and ages

Saint Barthélemy: 11,500 people on 1 January 2026.

The UN projects growth until 2047, to a peak of 12,800, and a decline after that.

Figures for 2026 are UN projections (medium variant). Estimates end in 2023.

Population, 1 January 2026
11,489
Median age
39.1
Births in 2026
62
Deaths in 2026
77
Life expectancy at birth
84.6
Children per woman
0.84
Under 15
17.8%
65 and over
18.3%
Population pyramid, Saint Barthélemy, 1 January 2026MaleFemale0102030405060708090100+05050100100
Population pyramid, Saint Barthélemy, 1 January 2026 Projection

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Population over time

In mid-1950 there were 2,010 people, so the population is now 5.8 times as large.

Population, 1950 to 2100Projected from 202405K10K15K1950197520002025205020752100
2026 Saint Barthélemy: 11.6K

Ages

The median age is 39.1, which is 8.0 years above the world’s 31.1.

18% of the people are under 15 and 18% are 65 or older (world: 24% and 11%).

People aged 65 and over have outnumbered children under 15 since 2026.

Women have 0.8 children on average at today’s rates (world: 2.2), against 3.2 in 1950.

Life expectancy at birth is 84.6 years, above the world’s 73.8. In 1950 it was 54.0.

Median age, 1950 to 2100Projected from 202402040601950197520002025205020752100Saint BarthélemyWorld
2026 Saint Barthélemy: 39World: 31

See how the pyramid changes from 1950 to 2100

Births, deaths and the years ahead

For mid-2050 the UN projects 12,800 people, 11% more than now, with a median age of 44.5.

Births and deaths per year, 1950 to 2100Projected from 20240501001502001950197520002025205020752100DeathsBirths
2026 Births: 62Deaths: 77

Compare Saint Barthélemy with other countries

Development and urbanisation

In 2025, 0% of the people lived in cities, 87% in towns and semi-dense areas and 13% in rural areas. For 2050 the UN projects 0% in cities.

Degree of urbanisation: one rule for every country, a city has at least 50,000 people at 1,500 or more per km². National definitions of “urban” differ.

Each value is the latest one published, with the year it refers to. Countries publish in different years. Sources: World Bank, World Development Indicators (ITU, SDG 7.1.1, UNESCO UIS), UNDP, Human Development Report, UN, World Urbanization Prospects 2025.

Longevity, ageing and the future

By the death rates of 2023, life expectancy at birth was 84.3 years. People who had reached 65 could expect 23.7 more years for women and 19.4 for men.

On 1 January 2026, there are 28.7 people aged 65 or more for every 100 aged 15 to 64. For 2050, the UN projects 42.0.

For 2100 the UN projects a population of 9,240, with a 95 percent prediction interval of 1,820 to 137,000.

Life expectancy at birth is a period measure. It sums up the death rates of one year and is not a forecast of how long the babies born that year will live.

Sources: World Population Prospects 2024, life tables, probabilistic projections, UN DESA Population Division (CC BY 3.0 IGO).

International migrants

In mid-2024, 0 international migrants lived here, 0.0% of the population.

A migrant stock counts people living outside their country at mid-year, not journeys or yearly moves. Sources: International Migrant Stock 2024, UN DESA Population Division (CC BY 3.0 IGO).

Cities

No city of 50,000 people or more here by the UN definition.

Sources: World Urbanization Prospects 2025, UN DESA Population Division (CC BY 3.0 IGO).

All cities

Data and sources

Saint Barthélemy every ten years
YearPopulation (1 July)Median ageBirthsDeathsLife expectancyChildren per woman
19502,00626.8493154.03.22
19602,18824.9512760.12.80
19702,40624.7492265.32.09
19802,96627.0451772.41.44
19905,25029.4901975.71.41
20007,08233.9863579.31.49
20108,96536.7824281.91.25
202010,54338.3545584.10.76
203012,00739.9728685.10.89
204012,64041.49811186.20.99
205012,78944.59113387.31.07
206012,37149.16714188.41.13
207011,80053.66813789.41.19
208011,15158.06513990.41.24
209010,30559.05415291.31.28
21009,23859.15016692.31.31

Rows from 2024 on are UN projections (medium variant), shown in italics.

The UN estimates every country and area within its present borders for every year since 1950, also for years before it became independent or took its present shape. Figures for earlier years therefore describe the people who lived on today’s territory.

Sources: World Population Prospects 2024, UN DESA Population Division (CC BY 3.0 IGO).

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