Tonga
Kingdom of Tonga · Polynesia
Tonga is a country in Polynesia, with Nuku'alofa as its capital, home to about 103,742 people. Tonga shares no land border with any other country.
| Capital | Nuku'alofa |
|---|---|
| Region | Polynesia |
| Currency | Tongan paʻanga (TOP T$) |
| Calling code | +676 |
| ISO codes | TO / TON / 776 ISO 3166-1 |
| Flag emoji | 🇹🇴 |
| Population | 103,742 (2025) World Bank |
| Area | 747 km² |
| Languages | English, Tongan |
| Internet domain | .to |
| Demonym | Tongan |
About Tonga
Tonga, officially Kingdom of Tonga, is a United Nations member state in Polynesia. Its capital and seat of government is Nuku'alofa. It is an island nation with no land borders. The official currency is the Tongan paʻanga (T$), using the code TOP.
Curious about the city itself? See what is the capital of Tonga for Nuku'alofa’s own facts and history.
To call Tonga from abroad, dial the country code +676. In international standards it is identified by the ISO 3166-1 codes TO (alpha-2) and TON (alpha-3), which appear in everything from web addresses to shipping labels. As of 2025, its population is around 103,742.
Frequently asked questions
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How Tonga compares
- Area: 747 km², ranking 174 of 194 sovereign states by land area.
- Population: 103,742, ranking 181 of 193 sovereign states.
- Density: about 139 people per square kilometre.
Flags with the same colours as Tonga
22 other national flags use exactly the same set of colour families (red, white). Similar colours are the most common reason flags get mistaken for one another, though colour alone says nothing about layout. Showing the first 12.
Tonga appears in these lists
Population from the World Bank (SP.POP.TOTL); flag, capital, currency, calling code and ISO data from open datasets. Rankings, density and flag colour matches are computed from that same dataset. Full sources and vintage on the data page. Last updated . Report a correction.