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Contact usTonga
| GDP (PPP) per capita (2023): 7,393.80 Int. Dollar | Population (2023): 104,597 | HDI (2023): 0.77 |
ND-GAIN Country Index rank
140
Score: 39.3
Vulnerability
0.607
Readiness
0.392
The high vulnerability score and high readiness score of Tonga places it in the upper-right quadrant of the ND-GAIN Matrix. It is on the road to responding effectively to climate change, but the adaptation needs and urgency to act are greater. Tonga is the 8th most vulnerable country and the 91st most ready country.
ND-GAIN Ranking since 1995
| Year | 95 | 96 | 97 | 98 | 99 | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ranking | 146 | 146 | 147 | 148 | 147 | 147 | 154 | 151 | 152 | 160 | 186 | 179 | 168 | 162 | 153 | 150 | 150 | 151 | 145 | 145 | 149 | 157 | 148 | 149 | 155 | 156 | 150 | 148 | 140 |
| Indicator | 2004 to 2023 | Score |
|---|---|---|
| Vulnerability | 0.607 | |
| Food | 0.560 | |
| Projected change of cereal yields | 0.892 | |
| Projected population change | 0.202 | |
| Food import dependency | 0.431 | |
| Rural population | 0.828 | |
| Agriculture capacity | 0.960 | |
| Child malnutrition | 0.045 | |
| Water | - | |
| Projected change of annual runoff | - | |
| Projected change of annual groundwater recharge | 0.249 | |
| Fresh water withdrawal rate | - | |
| Water dependency ratio | 0 | |
| Dam capacity | - | |
| Access to reliable drinking water | 0.715 | |
| Health | 0.654 | |
| Projected change of deaths from climate change induced diseases | 0.091 | |
| Projected change in vector-borne diseases | 0.658 | |
| Dependency on external resource for health services | 1.000 | |
| Slum population | - | |
| Medical staff | 0.835 | |
| Access to improved sanitation facilities | 0.687 | |
| Ecosystem Services | 0.688 | |
| Projected change of biome distribution | - | |
| Projected change of marine biodiversity | 0.886 | |
| Natural capital dependency | 1.000 | |
| Ecological footprint | 0.304 | |
| Protected biome | 0.446 | |
| Engagement in international environmental conventions | 0.806 | |
| Human Habitat | 0.506 | |
| Projected change of warm periods | 0.194 | |
| Projected change of flood hazard | 0.731 | |
| Urban concentration | 0.172 | |
| Age dependency ratio | 0.696 | |
| Quality of trade and transport infrastructure | - | |
| Paved roads | 0.736 | |
| Infrastructure | 0.625 | |
| Projected change of hydropower generation capacity | - | |
| Projected change of sea level rise impacts | 1.000 | |
| Dependency on imported energy | - | |
| Population living under 5m above sea level | 1.000 | |
| Electricity access | 0 | |
| Disaster preparedness | 0.500 |