Country Profile: Tonga

Tonga is an archipelago located in the South Pacific Ocean, characterized by its tropical climate and predominantly flat limestone islands. With a population of approximately 104,519, the nation operates under a constitutional monarchy, making it the last remaining Polynesian kingdom. The economy is primarily driven by agriculture and tourism, with increasing reliance on remittances from the Tongan diaspora. Despite its rich cultural heritage, Tonga faces challenges such as environmental degradation and economic dependence.

Geography

Tonga consists of over 171 islands, with about 45 of them inhabited, primarily concentrated on Tongatapu, the largest island. The country's total area is 747 square kilometers, featuring a tropical climate influenced by trade winds. The islands have a varied terrain, including limestone over volcanic foundations and surrounded by a coastline of 419 km.

Total Area: 747 sq km
Highest Point: 1,046 m (Kao Volcano)
Lowest Point: 0 m (Pacific Ocean)
Population Distribution: Over two-thirds live on Tongatapu.
Natural Hazards: Cyclones from October to April, earthquakes, and volcanic activity.

People and Society

The population of Tonga is estimated at 104,519 in 2025, with a median age of 26.4 years. The society is predominantly Tongan (96.5%), with English as the primary language alongside Tongan. The nation is religiously diverse, with a majority identifying as Protestant. Urbanization is gradually increasing, with 23.2% of the population residing in urban areas.

Population (2025 est.): 104,519
Life Expectancy: 78 years (2024 est.)
Literacy Rate: 91.1% (2019 est.)
Infant Mortality Rate: 11.5 deaths/1,000 live births (2025 est.)
Obesity Prevalence: 48.2% (2016)

Economy

Tonga has an upper middle-income economy, largely reliant on tourism and agriculture, with fish exports playing a significant role. The GDP (PPP) is estimated at $740.082 million for 2023, and the economy is experiencing growth driven by remittances, which account for 50% of GDP. Challenges include high reliance on imports and the effects of climate change on agriculture.

GDP (PPP) (2023 est.): $740.082 million
GDP per Capita (2023 est.): $7,100
Remittances (% of GDP): 50% (2023 est.)
Unemployment Rate: 2.2% (2024 est.)
Main Sectors: Agriculture (17.5%), Industry (13.5%), Services (50.2%)

Government

Tonga is a constitutional monarchy, with the King TUPOU VI serving as the head of state. The government includes a prime minister and a unicameral legislative assembly. The constitution, adopted in 1875, has undergone revisions to enhance democratic governance, including establishing a parliamentary system that allows for citizen participation.

Capital: Nuku'alofa
Suffrage Age: 21 years
Legislature: Unicameral Assembly with 30 seats
Judicial System: Based on English common law
Independence: Achieved on June 4, 1970

Military and Security

Tonga's military, known as His Majesty's Armed Forces, comprises approximately 600 active personnel. The military's responsibilities include national defense, maritime security, and humanitarian assistance. Military expenditure was around 1.8% of GDP in 2024, reflecting the country's ongoing commitment to maintaining sovereignty and supporting international partnerships.

Military Expenditures (% of GDP): 1.8% (2024 est.)
Active Forces Personnel: ~600 (2025)
Military Service Age: 16-25 years
Partnerships: Key cooperation with Australia, New Zealand, and the US.

Energy

Tonga has achieved 100% electricity access, with the majority of its generation capacity derived from fossil fuels. The total installed capacity stands at 34,000 kW, with electricity consumption recorded at 67.01 million kWh in 2023. The nation is exploring diversifying its energy sources, including solar and wind.

Electricity Access: 100% of the population (2022 est.)
Total Energy Consumption per Capita: 23.272 million Btu/person (2023 est.)
Electricity Generation from Fossil Fuels: 89% (2023 est.)
Refined Petroleum Consumption: 1,000 bbl/day (2023 est.)

Environment

Tonga faces significant environmental challenges, including deforestation, water pollution, and climate change impacts on coral reefs and marine biodiversity. The country is a party to multiple international environmental agreements aimed at addressing these issues and promoting sustainable practices.

Deforestation Issues: Linked to agriculture and settlement expansion.
Carbon Dioxide Emissions: 174,000 metric tonnes (2023 est.)
Municipal Solid Waste: 17,200 tons/year (2024 est.)
Recycling Rate: 12.2% of municipal solid waste (2022 est.)

Transportation

Transport in Tonga includes six airports and a small merchant marine fleet. The primary ports are Neiafu, Nuku Alofa, and Pangai, serving as crucial points for trade and passenger movement. There are 29 registered civil aircraft, facilitating connectivity within the islands and to external destinations.

Airports: 6 (2025)
Merchant Marine Fleet: 29 ships (2023)
Total Ports: 3 (2024)
Civil Aircraft Registration Code: A3

Communications

Tonga has a growing communications infrastructure, with a majority of the population using mobile and internet services. Approximately 59% of the population are internet users, supported by both state-owned and private media outlets.

Fixed Line Subscriptions: 11,000 (2021 est.)
Mobile Cellular Subscriptions: 64,800 (2022 est.)
Internet Users (% of population): 59% (2023 est.)
Broadband Fixed Subscriptions: 9,000 (2022 est.)

Key Metrics

Metric	Value	Note
Population	104,519 (2025 est.)
Area	747 sq km
GDP (PPP)	$740.082 million	(2023 est.)
Energy Consumption	23.272 million Btu/person	(2023 est.)
Birth Rate	19.43 births/1,000 population	(2025 est.)
Unemployment Rate	2.2% (2024 est.)
Life Expectancy	78 years (2024 est.)