---
title: "Tonga — capital, area, population and currency"
description: "Tonga: capital Nuku'alofa, area 747 km², population 103,742 (2025), currency Tongan paʻanga. Languages, time zones and calling code."
url: https://atoneplace.net/country/tonga/
site: "At One Place"
---

# Tonga

**Tonga: Capital Nuku'alofa**

747 km² · 103,742 people (2025) · Tongan paʻanga

About 170 islands, of which some 36 are inhabited, sitting just west of the Tonga Trench — at 10,882 m the second-deepest point in any ocean. The Hunga Tonga-Hunga Haʻapai eruption in January 2022 was the most powerful recorded anywhere in over a century and put water vapour into the stratosphere.

## The facts

- **Capital:** Nuku'alofa
- **Area:** 747 km² — 288 sq mi
- **Population:** 103,742 (2025)
- **Density:** 138.9 people per km²
- **Currency:** Tongan paʻanga (TOP, T$)
- **Official languages:** English, Tongan
- **Time zone:** UTC+13:00
- **Calling code:** +676
- **Drives on the:** left
- **ISO codes:** TO · TON
- **Continent:** Oceania

## How it compares

- **By area:** 180 of 200
- **By population:** 186 of 200

> Population is the only figure on this page that dates — it is a 2025 estimate and will drift. Area, capital, currency, languages, calling code and driving side change rarely or never.

## Countries of a similar size

| Country | Area (km²) | Population |
| --- | --- | --- |
| Bahrain | 760 | 1,600,366 |
| Dominica | 751 | 65,871 |
| Tonga ← | 747 | 103,742 |
| Singapore | 719 | 6,111,175 |
| Micronesia | 702 | 113,683 |

## Common questions

### What is the capital of Tonga?

Nuku'alofa

### What currency does Tonga use?

The Tongan paʻanga (TOP).

### How big is Tonga?

747 km², or 288 square miles — 180 of 200 by area.

### Which side of the road does Tonga drive on?

The left.

## Related pages

- [Bahrain](https://atoneplace.net/country/bahrain/)
- [Dominica](https://atoneplace.net/country/dominica/)
- [Singapore](https://atoneplace.net/country/singapore/)
- [Micronesia](https://atoneplace.net/country/micronesia/)
- [Australia](https://atoneplace.net/country/australia/)
- [Papua New Guinea](https://atoneplace.net/country/papua-new-guinea/)
- [New Zealand](https://atoneplace.net/country/new-zealand/)
- [Fiji](https://atoneplace.net/country/fiji/)
- [Solomon Islands](https://atoneplace.net/country/solomon-islands/)
- [Vanuatu](https://atoneplace.net/country/vanuatu/)
- [Samoa](https://atoneplace.net/country/samoa/)
- [Kiribati](https://atoneplace.net/country/kiribati/)

## Sources

- The World Factbook — Central Intelligence Agency (https://www.cia.gov/the-world-factbook/) [Public domain (US Government)]
- World Bank Open Data — The World Bank (https://data.worldbank.org/) [CC BY 4.0]