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Contact usTonga
| GDP (PPP) per capita (2024): 7,802.67 Int. Dollar | Population (2024): 104,175 | HDI (2024): 0.77 |
ND-GAIN Country Index rank
154
Score: 37.9
Vulnerability
0.595
Readiness
0.353
The high vulnerability score and low readiness score of Tonga places it in the upper-left quadrant of the ND-GAIN Matrix. It has both a great need for investment and innovations to improve readiness and a great urgency for action. Tonga is the 15th most vulnerable country and the 122nd 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 | 24 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ranking | 124 | 123 | 124 | 123 | 123 | 123 | 122 | 120 | 127 | 136 | 139 | 144 | 136 | 142 | 131 | 131 | 131 | 131 | 126 | 132 | 132 | 134 | 132 | 130 | 136 | 127 | 125 | 157 | 154 | 154 |
| Indicator | 2005 to 2024 | Score |
|---|---|---|
| Vulnerability | 0.595 | |
| Food | 0.564 | |
| Projected change of cereal yields | 0.892 | |
| Projected population change | 0.202 | |
| Food import dependency | 0.436 | |
| Rural population | 0.849 | |
| Agriculture capacity | 0.962 | |
| Child malnutrition | 0.045 | |
| Water | - | |
| Projected change of annual runoff | - | |
| Projected change of annual groundwater recharge | 0.751 | |
| Fresh water withdrawal rate | - | |
| Water dependency ratio | 0 | |
| Dam capacity | - | |
| Access to reliable drinking water | 0.713 | |
| Health | 0.546 | |
| 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 | 0.003 | |
| Medical staff | 0.825 | |
| Access to improved sanitation facilities | 0.701 | |
| Ecosystem Services | 0.734 | |
| Projected change of biome distribution | - | |
| Projected change of marine biodiversity | 0.886 | |
| Natural capital dependency | 1.000 | |
| Ecological footprint | 0.311 | |
| Protected biome | 0.669 | |
| Engagement in international environmental conventions | 0.806 | |
| Human Habitat | 0.501 | |
| Projected change of warm periods | 0.194 | |
| Projected change of flood hazard | 0.731 | |
| Urban concentration | 0.151 | |
| Age dependency ratio | 0.693 | |
| Quality of trade and transport infrastructure | - | |
| Paved roads | 0.736 | |
| Infrastructure | 0.628 | |
| 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 | 0.513 |