Countries and regions of the world › Oceania › Polynesia

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Samoa

The capital is Apia, with 31,030 inhabitants in the city. It has 220,524 inhabitants (176th in the world) on 2,840 km² (167th in the world), with a density of 79 people per km². Life expectancy at birth is 72.1 years, women have 3.70 children on average and half the population is older than 21. GDP per capita is $5,873 (111th in the world, 2025 figure).

See on the map Population pyramid In the bubble chart

Key data, 2026

Indicator Value Rank World Trend
Territory
Total area (km²) 2,840 (2024) 167th / 195 137 million
Land area (km²) 2,780 (2024) 167th / 194 130 million
Density (people per km²) 79.3 109th / 194 63.8
Population
Population 220,524 176th / 194 8.30 billion
Population growth (% a year) +0.56 119th / 194 +0.84
Median age (years) 21.0 159th / 194 32.1
Under 15 (%) 37.6 33rd / 194 24.1
65 and over (%) 6.2 115th / 194 10.6
Urban population (%) 17.5 (2025) 192nd / 194 57.7
Births and health
Children per woman 3.70 31st / 194 2.23
Life expectancy (years) 72.1 120th / 194 73.8
Life expectancy, men (years) 70.2 107th / 194 71.2
Life expectancy, women (years) 74.1 127th / 194 76.4
Infant mortality (‰ births) 12.3 90th / 194 26.1
Migration
Net migration (‰ people) -12.7 191st / 194 0.0
Economy and environment
GDP (dollars) $1.3B (2025) 182nd / 193 $117.32T
GDP per capita (dollars) $5,873 (2025) 111th / 193 $14,306
GDP growth (%) +4.2 (2025) 69th / 193 +4.3
GNI per capita PPP (international dollars) $9,300 (2025) 131st / 190 $25,266
Unemployment (%) 5.0 (2025) 96th / 179 5.1
Greenhouse gases per capita (t CO₂e) 2.4 (2024) 124th / 186 6.3

Sources: United Nations, World Population Prospects 2024 (after 2023 projections, dashed), and World Bank (the latest published figure, with the year in brackets if older). Rank among the 195 states. For regions the World Bank values are computed from the member countries.