Age dependency ratio in Sao Tome and Principe
Sao Tome and Principe: Age dependency ratio was 70.6% in 2025. ▼ Falling
Age dependency ratio in Sao Tome and Principe, 1960–2025
Source: World Population Prospects, United Nations (UN), publisher: UN Population Division. Measured in % of working-age population.
Analysis
The most recent figure for age dependency ratio in Sao Tome and Principe is 70.6%, measured in 2025.
The figure is down 1.3% on the previous year and down 15.3% over ten years.
Over the whole period, age dependency ratio in Sao Tome and Principe peaked at 103.1% in 1970 and was at its lowest, 57.5%, in 1960.
Sao Tome and Principe ranks 38th of 218 countries on this measure, in the top quarter.
The long-run direction has been consistently falling across the 66 years of available data.
Age dependency ratio in Sao Tome and Principe, year by year
| Year | % of working-age population | Change |
|---|---|---|
| 1960 | 57.5% | — |
| 1961 | 61.3% | +6.7% |
| 1962 | 67.8% | +10.5% |
| 1963 | 73.9% | +8.9% |
| 1964 | 79.5% | +7.6% |
| 1965 | 84.6% | +6.5% |
| 1966 | 89.4% | +5.6% |
| 1967 | 93.7% | +4.8% |
| 1968 | 97.7% | +4.3% |
| 1969 | 101.4% | +3.8% |
| 1970 | 103.1% | +1.6% |
| 1971 | 102.5% | -0.5% |
| 1972 | 101.9% | -0.6% |
| 1973 | 101.4% | -0.5% |
| 1974 | 100.9% | -0.5% |
| 1975 | 100.5% | -0.4% |
| 1976 | 100.0% | -0.5% |
| 1977 | 99.4% | -0.6% |
| 1978 | 98.8% | -0.6% |
| 1979 | 98.1% | -0.7% |
| 1980 | 97.4% | -0.7% |
| 1981 | 96.8% | -0.7% |
| 1982 | 96.3% | -0.4% |
| 1983 | 96.0% | -0.3% |
| 1984 | 95.5% | -0.5% |
| 1985 | 95.7% | +0.2% |
| 1986 | 96.4% | +0.8% |
| 1987 | 96.8% | +0.4% |
| 1988 | 97.1% | +0.2% |
| 1989 | 97.2% | +0.1% |
| 1990 | 97.1% | -0.0% |
| 1991 | 97.3% | +0.2% |
| 1992 | 97.6% | +0.3% |
| 1993 | 97.6% | +0.0% |
| 1994 | 97.3% | -0.3% |
| 1995 | 96.7% | -0.7% |
| 1996 | 95.7% | -1.0% |
| 1997 | 94.4% | -1.3% |
| 1998 | 92.8% | -1.8% |
| 1999 | 90.8% | -2.1% |
| 2000 | 88.8% | -2.3% |
| 2001 | 87.5% | -1.5% |
| 2002 | 86.8% | -0.7% |
| 2003 | 86.2% | -0.7% |
| 2004 | 85.8% | -0.5% |
| 2005 | 85.4% | -0.5% |
| 2006 | 85.1% | -0.4% |
| 2007 | 84.9% | -0.2% |
| 2008 | 84.8% | -0.1% |
| 2009 | 84.7% | -0.2% |
| 2010 | 84.3% | -0.4% |
| 2011 | 83.8% | -0.6% |
| 2012 | 83.7% | -0.2% |
| 2013 | 83.8% | +0.2% |
| 2014 | 83.8% | -0.1% |
| 2015 | 83.5% | -0.4% |
| 2016 | 82.8% | -0.8% |
| 2017 | 81.9% | -1.1% |
| 2018 | 80.8% | -1.3% |
| 2019 | 79.5% | -1.6% |
| 2020 | 77.9% | -2.1% |
| 2021 | 76.0% | -2.4% |
| 2022 | 74.3% | -2.2% |
| 2023 | 72.9% | -2.0% |
| 2024 | 71.6% | -1.7% |
| 2025 | 70.6% | -1.3% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 80.7% | 57.5% | 101.4% | 10 |
| 1970s | 100.7% | 98.1% | 103.1% | 10 |
| 1980s | 96.5% | 95.5% | 97.4% | 10 |
| 1990s | 95.7% | 90.8% | 97.6% | 10 |
| 2000s | 86.0% | 84.7% | 88.8% | 10 |
| 2010s | 82.8% | 79.5% | 84.3% | 10 |
| 2020s | 73.9% | 70.6% | 77.9% | 6 |
Countries ranked near Sao Tome and Principe
More health data for Sao Tome and Principe
- Un projection of annual infant deaths, annual growth rate -6.25 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 1.35 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 793.5 deaths per 1,000 people (2090)
- Number of infants who die before age 1 15 deaths (2100)
- Population ages 30-34, female, annual growth rate 2.08 % change on previous year (2025)
- Population ages 30-34, female, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 30-34, female, per capita 0.0303 units per person (2025)
- Population ages 30-34, male, annual growth rate 2.07 % change on previous year (2025)
- Population ages 30-34, male, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 30-34, male, per capita 0.0298 units per person (2025)
Frequently asked questions
- What is age dependency ratio in Sao Tome and Principe?
- Age dependency ratio in Sao Tome and Principe was 70.6% in 2025, according to World Population Prospects, United Nations (UN), publisher: UN Population Division.
- What is the highest age dependency ratio recorded in Sao Tome and Principe?
- The highest recorded value was 103.1% in 1970.
- What is the lowest age dependency ratio recorded in Sao Tome and Principe?
- The lowest recorded value was 57.5% in 1960.
- How does Sao Tome and Principe rank for age dependency ratio?
- Sao Tome and Principe ranks 38th out of 218 countries with data for 2025.
- Is age dependency ratio rising or falling in Sao Tome and Principe?
- Over the last ten years it is down 15.3%. The long-run trend across the full record is falling.
- Where does this Sao Tome and Principe data come from?
- The figures come from World Population Prospects, United Nations (UN), publisher: UN Population Division, published as part of Age dependency ratio (% of working-age population). Statizoid updates them automatically from the source API.
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About this data
Age dependency ratio is the ratio of dependents--people younger than 15 or 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.