Upper middle income Countries Ranked by Median age proxy (age dependency ratio) (2025)
Age dependency ratio: each country's latest value (2020–2025), ranked from highest to lowest. Source: The World Bank (CC BY 4.0).
Summary
Samoa ranks #1 with 79 dependants per 100 working-age people. Tonga is second with 71.7 dependants per 100 working-age people, 10.1% behind. The top five are Samoa, Tonga, Equatorial Guinea, Gabon and Tuvalu. The median across all 59 is 50.2 dependants per 100 working-age people; Maldives is last at 31.6 dependants per 100 working-age people. Samoa's figure has fallen 4% since 2001 (82.3 dependants per 100 working-age people to 79 dependants per 100 working-age people in 2025).
- #1
- Samoa · 79 dependants per 100 working-age people
- Median
- 50.2 dependants per 100 working-age people
- Coverage
- 59 Upper middle income countries
- Data year
- 2025
- Last updated
- 2026-11-14
Full ranking
About the top 10
#1 Samoa
Samoa ranks #1 on this list with 79 dependants per 100 working-age people.
- Capital
- Apia
- Continent
- Oceania
- Income group
- Upper middle income
- Population
- 219,310 people (2025)
- GDP
- US$1.29 billion (2025)
- GDP per person
- US$5,873 (2025)
- Life expectancy
- 71.8 years (2024)
- Urban population
- 17.5% of population (2025)
Also ranks #3 in rural population share · #4 in diabetes prevalence · #16 in age dependency ratio.
#2 Tonga
Tonga ranks #2 on this list with 71.7 dependants per 100 working-age people.
- Capital
- Nukuʻalofa
- Continent
- Oceania
- Income group
- Upper middle income
- Population
- 103,740 people (2025)
- GDP
- US$679.22 million (2025)
- GDP per person
- US$6,547 (2025)
- Life expectancy
- 73.1 years (2024)
- Urban population
- 21.2% of population (2025)
Also ranks #7 in rural population share · #10 in completion rate (primary) · #11 in income share of poorest 10%.
#3 Equatorial Guinea
Equatorial Guinea ranks #3 on this list with 69.1 dependants per 100 working-age people.
- Capital
- Ciudad de la Paz
- Continent
- Africa
- Income group
- Upper middle income
- Population
- 1.94 million people (2025)
- GDP
- US$12.82 billion (2025)
- GDP per person
- US$6,615 (2025)
- Life expectancy
- 63.9 years (2024)
- Urban population
- 71.6% of population (2025)
Also ranks #7 in forest area share · #13 in male population share · #13 in industry value added share of gdp.
#4 Gabon
Gabon ranks #4 on this list with 67.7 dependants per 100 working-age people.
- Capital
- Libreville
- Continent
- Africa
- Income group
- Upper middle income
- Population
- 2.59 million people (2025)
- GDP
- US$21.43 billion (2025)
- GDP per person
- US$8,263 (2025)
- Life expectancy
- 68.5 years (2024)
- Urban population
- 92.1% of population (2025)
Also ranks #3 in forest area share · #4 in renewable energy share · #6 in unemployment rate.
#5 Tuvalu
Tuvalu ranks #5 on this list with 66.8 dependants per 100 working-age people.
- Capital
- Funafuti
- Continent
- Oceania
- Income group
- Upper middle income
- Population
- 9,492 people (2025)
- GDP
- US$57.35 million (2025)
- GDP per person
- US$6,041 (2025)
- Life expectancy
- 67.3 years (2024)
- Urban population
- 65.4% of population (2025)
Also ranks #1 in agricultural land share · #1 in health expenditure share of gdp · #1 in literacy rate.
#6 Iraq
Iraq ranks #6 on this list with 65.2 dependants per 100 working-age people.
- Capital
- Baghdad
- Continent
- Asia
- Income group
- Upper middle income
- Population
- 47.02 million people (2025)
- GDP
- US$254.37 billion (2025)
- GDP per person
- US$5,410 (2025)
- Life expectancy
- 72.4 years (2024)
- Urban population
- 69.9% of population (2025)
Largest cities: Baghdad, Mosul, Basra.
Also ranks #2 in natural resource rents share of gdp · #2 in oil rents share of gdp · #9 in industry value added share of gdp.
#7 Marshall Islands
Marshall Islands ranks #7 on this list with 63.3 dependants per 100 working-age people.
- Capital
- Majuro
- Continent
- Oceania
- Income group
- Upper middle income
- Population
- 36,282 people (2025)
- GDP
- US$308 million (2025)
- GDP per person
- US$8,489 (2025)
- Life expectancy
- 67.1 years (2024)
- Urban population
- 79.1% of population (2025)
Also ranks #2 in diabetes prevalence · #5 in health expenditure share of gdp · #5 in completion rate (lower secondary).
#8 Kazakhstan
Kazakhstan ranks #8 on this list with 61.7 dependants per 100 working-age people.
- Capital
- Astana
- Continent
- Asia
- Income group
- Upper middle income
- Population
- 20.84 million people (2025)
- GDP
- US$306.24 billion (2025)
- GDP per person
- US$14,692 (2025)
- Life expectancy
- 74.5 years (2024)
- Urban population
- 62.4% of population (2025)
Largest cities: Almaty, Shymkent, Astana.
Also ranks #2 in debt service share of exports · #4 in income share of poorest 10% · #6 in protected marine area share.
#9 Micronesia, Fed. Sts.
Micronesia, Fed. Sts. ranks #9 on this list with 60.5 dependants per 100 working-age people.
- Capital
- Palikir
- Continent
- Oceania
- Income group
- Upper middle income
- Population
- 113,680 people (2025)
- GDP
- US$501.8 million (2025)
- GDP per person
- US$4,414 (2025)
- Life expectancy
- 67.4 years (2024)
- Urban population
- 22.5% of population (2025)
Also ranks #1 in forest area share · #3 in education expenditure share of gdp · #7 in health expenditure share of gdp.
#10 Serbia
Serbia ranks #10 on this list with 59.5 dependants per 100 working-age people.
- Capital
- Belgrade
- Continent
- Europe
- Income group
- Upper middle income
- Population
- 6.55 million people (2025)
- GDP
- US$99.95 billion (2025)
- GDP per person
- US$15,262 (2025)
- Life expectancy
- 76 years (2024)
- Urban population
- 62.6% of population (2025)
Largest cities: City of Belgrade, Belgrade.
Also ranks #3 in death rate · #4 in smoking prevalence · #13 in age dependency ratio (old).
Profile facts: World Bank (CC BY 4.0) and Wikidata (CC0); weather links go to Purr Weather, another ChowChow Labs site.
Source and method
Age dependency ratio: each country's latest value (2020–2025), ranked from highest to lowest.
Source: The World Bank, indicator SP.POP.DPND. Licence: CC BY 4.0. Retrieved: 2026-11-14.
The World Bank: Age dependency ratio (% of working-age population): World Population Prospects, United Nations (UN), publisher: UN Population Division (via World Development Indicators)
Original data provider, as recorded by the World Bank: World Population Prospects, United Nations (UN), publisher: UN Population Division; Staff estimates, World Bank (WB).
Values are shown as published. Provider terms: The World Bank. All licences: Sources & licences.