Sierra Leone vs Tanzania, United Republic of: Age dependency ratio, old

Sierra Leone
5.6%
in 2025
Tanzania, United Republic of
5.6%
in 2025
Sierra Leone rank
190th
Tanzania, United Republic of rank
189th

Age dependency ratio, old over time

  • Sierra Leone
  • Tanzania, United Republic of
02468196019922025

How they compare

Tanzania, United Republic of currently reports 5.6% against 5.6% in Sierra Leone, a difference of 0.0%.

The two have swapped places 1 time across 66 shared years of data; in 1960 it was Sierra Leone ahead.

Sierra Leone ranks 190th and Tanzania, United Republic of ranks 189th of 218 countries.

Across the 7 decades both report, Sierra Leone averaged higher in 6 and Tanzania, United Republic of in 1.

Head to head by decade

Decade Sierra Leone Tanzania, United Republic of Difference Ahead
1960s 7.0% 4.7% 2.3% Sierra Leone
1970s 7.6% 5.3% 2.3% Sierra Leone
1980s 7.6% 6.0% 1.6% Sierra Leone
1990s 7.1% 5.6% 1.5% Sierra Leone
2000s 6.4% 5.2% 1.2% Sierra Leone
2010s 5.8% 5.6% 0.2% Sierra Leone
2020s 5.5% 5.6% 0.1% Tanzania, United Republic of

Averages of every year both report within each decade.

Frequently asked questions

Which has higher age dependency ratio, old, Sierra Leone or Tanzania, United Republic of?
Tanzania, United Republic of, at 5.6% against 5.6% in Sierra Leone as of 2025.
What is the difference in age dependency ratio, old between Sierra Leone and Tanzania, United Republic of?
0.0%, with Tanzania, United Republic of ahead.
How many years of comparable data are there for Sierra Leone and Tanzania, United Republic of?
66 years are reported by both, from 1960 to 2025.
How do Sierra Leone and Tanzania, United Republic of rank globally for age dependency ratio, old?
Sierra Leone ranks 190th and Tanzania, United Republic of ranks 189th of 218 countries.
Where does this data come from?
World Population Prospects, United Nations (UN), publisher: UN Population Division, published as Age dependency ratio, old (% of working-age population). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Sierra Leone vs Tanzania, United Republic of: Age dependency ratio, old. Statizoid, drawing on World Population Prospects, United Nations (UN), publisher: UN Population Division. Retrieved 10 September 2026, from https://health.statizoid.com/compare/age-dependency-ratio-old-percent-of-working-age-population/sierra-leone/tanzania/

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About this data

Indicator
Age dependency ratio, old (% of working-age population)
Unit
% of working-age population
Source
World Population Prospects, United Nations (UN), publisher: UN Population Division
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
266 places, 17,526 data points, 1960–2025
Last refreshed

Age dependency ratio, old, is the ratio of older dependents--people older than 64--to the working-age population--those ages 15-64. Data are shown as the proportion of dependents per 100 working-age population.