| Capital: | Nuku'alofa |
| Surface area: | 748 km2 |
| By comparison: | Switzerland: about 40'000 km2 |
| Population: | 101'000 (135 inhabit. per km2) |
| Annual population growth rate: | 0.8% |
| Languages: | Tongan |
| Religion: | 36% Methodist, 15% Catholic |
| Currency: | Pa'anga |
| GNP per inhabitant and year: | 1'440 US-$ |