IBRD only vs Tonga: Age dependency ratio
IBRD only
47.1%
in 2025
Tonga
71.7%
in 2025
IBRD only rank
38th
Tonga rank
35th
Age dependency ratio over time
- IBRD only
- Tonga
How they compare
Tonga currently reports 71.7% against 47.1% in IBRD only, a difference of 24.6%.
That makes Tonga's figure about 1.5 times IBRD only's.
Across all 66 years both countries report, Tonga has been ahead every year.
IBRD only ranks 38th and Tonga ranks 35th of 45 groups.
Tonga has averaged higher in every one of the 7 decades both report.
Head to head by decade
| Decade | IBRD only | Tonga | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 80.0% | 96.3% | 16.3% | Tonga |
| 1970s | 77.8% | 96.8% | 19.0% | Tonga |
| 1980s | 68.0% | 86.4% | 18.5% | Tonga |
| 1990s | 61.3% | 81.2% | 19.9% | Tonga |
| 2000s | 52.3% | 77.9% | 25.6% | Tonga |
| 2010s | 47.9% | 74.9% | 26.9% | Tonga |
| 2020s | 47.8% | 72.6% | 24.8% | Tonga |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher age dependency ratio, IBRD only or Tonga?
- Tonga, at 71.7% against 47.1% in IBRD only as of 2025.
- What is the difference in age dependency ratio between IBRD only and Tonga?
- 24.6%, with Tonga ahead.
- How many years of comparable data are there for IBRD only and Tonga?
- 66 years are reported by both, from 1960 to 2025.
- How do IBRD only and Tonga rank globally for age dependency ratio?
- IBRD only ranks 38th and Tonga ranks 35th of 45 groups.
- 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.