Tonga
Global Child Index — Beta v1.1
Score
88.5 / 100
Rank
#80
Data coverage
100%
Domain scores
Health & Nutrition
98.0
Education
89.2
Poverty & Water
64.6
Adolescent & Digital
77.5
Protection
95.2
Environment & Exposure
93.2
Indicators
| Indicator | Value | Year | Score / 100 | Source |
|---|---|---|---|---|
| Under-5 mortality rate | 9.50 | 2024 | 96.2 | UN IGME via World Bank |
| Stunting prevalence (under-5) | 2.20 | 2019 | 97.8 | UNICEF/WHO/World Bank JME via World Bank |
| Immunization, DTP3 | 99.00 | 2024 | 99.0 | WHO/UNICEF (WUENIC) via World Bank |
| Wasting prevalence (under-5) | 1.10 | 2019 | 98.9 | UNICEF/WHO/World Bank JME via World Bank |
| Primary school enrolment (net) | 85.94 | 2015 | 85.9 | UNESCO UIS via World Bank |
| Secondary school enrolment (net) | 82.07 | 2015 | 82.1 | UNESCO UIS via World Bank |
| Youth literacy rate (15–24) | 99.72 | 2023 | 99.7 | UNESCO UIS via World Bank |
| Poverty headcount ($2.15/day) | 0.40 | 2021 | 99.6 | World Bank |
| Safely managed drinking water | 29.60 | 2024 | 29.6 | WHO/UNICEF JMP via World Bank |
| Adolescent fertility rate | 25.07 | 2024 | 87.5 | UN Population Division via World Bank |
| Individuals using the internet | 67.44 | 2024 | 67.4 | ITU via World Bank |
| Birth registration completeness | 97.70 | 2019 | 97.7 | UNICEF via World Bank |
| Married by age 18 | 10.10 | 2019 | 89.9 | UNICEF via World Bank |
| Intentional homicide rate | 0.95 | 2019 | 98.1 | UNODC via World Bank |
| PM2.5 air pollution exposure | 4.69 | 2023 | 95.3 | GBD/IHME via World Bank |
| Access to clean cooking fuels | 91.00 | 2024 | 91.0 | WHO via World Bank |
Why this moved — Index v1.0 → v1.1
Score changed from 82.9 (v1.0) to 88.5 (v1.1) when the Index expanded on 21 Oct 2026. Decomposed honestly:
- Methodology effect +5.6 — the indicator set grew from 9 to 16 (adding Protection and Environment & Exposure). This part of the change says something about the ruler, not about Tonga.
- Data effect +0.0 — revised or newer values on the original v1.0 indicators. This is the part that reflects change in Tonga itself.
Its rank moved from #101 to #80; rank movement between versions also reflects the larger ranked set and other countries’ new-indicator scores, so it is not, by itself, evidence of change in this country. The v1.0 table is kept in the v1.0 archive.