Guinea-Bissau vs Tonga: Age dependency ratio
Guinea-Bissau
71.1%
in 2025
Tonga
71.7%
in 2025
Guinea-Bissau rank
36th
Tonga rank
35th
Age dependency ratio over time
- Guinea-Bissau
- Tonga
How they compare
Tonga currently reports 71.7% against 71.1% in Guinea-Bissau, a difference of 0.6%.
The two have swapped places 2 times across 66 shared years of data; in 1960 it was Tonga ahead.
Guinea-Bissau ranks 36th and Tonga ranks 35th of 218 countries.
Across the 7 decades both report, Guinea-Bissau averaged higher in 5 and Tonga in 2.
Head to head by decade
| Decade | Guinea-Bissau | Tonga | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 78.8% | 96.3% | 17.5% | Tonga |
| 1970s | 89.8% | 96.8% | 7.0% | Tonga |
| 1980s | 102.8% | 86.4% | 16.4% | Guinea-Bissau |
| 1990s | 98.8% | 81.2% | 17.7% | Guinea-Bissau |
| 2000s | 89.3% | 77.9% | 11.4% | Guinea-Bissau |
| 2010s | 82.1% | 74.9% | 7.3% | Guinea-Bissau |
| 2020s | 74.2% | 72.6% | 1.5% | Guinea-Bissau |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher age dependency ratio, Guinea-Bissau or Tonga?
- Tonga, at 71.7% against 71.1% in Guinea-Bissau as of 2025.
- What is the difference in age dependency ratio between Guinea-Bissau and Tonga?
- 0.6%, with Tonga ahead.
- How many years of comparable data are there for Guinea-Bissau and Tonga?
- 66 years are reported by both, from 1960 to 2025.
- How do Guinea-Bissau and Tonga rank globally for age dependency ratio?
- Guinea-Bissau ranks 36th and Tonga ranks 35th of 218 countries.
- Where does this data come from?
- World Population Prospects, United Nations (UN), publisher: UN Population Division, published as Age dependency ratio (% of working-age population). Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
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.