Country Profile: Tonga

Tonga is an archipelago located in the South Pacific Ocean, comprised of 171 islands with a population of approximately 104,519 as of 2025. The country's economy is classified as an upper middle-income economy, largely reliant on tourism, agriculture, and remittances from its vast diaspora. Tonga has a constitutional monarchy with a rich history of governance, transitioning from a protectorate status to full independence in 1970. The nation continues to face challenges such as environmental issues and social inequalities while maintaining a unique cultural heritage.

Geography

Tonga lies two-thirds of the way from Hawaii to New Zealand, featuring mostly flat islands composed of limestone and volcanic rock. The total land area is approximately 747 sq km, including 419 km of coastline. The islands experience a tropical climate, with warm seasons from December to May and cooler winters from May to December. Natural resources include arable land and fish, although threats from cyclones and volcanic activity exist.

747 sq km: Total land area of Tonga.
419 km: Length of Tonga's coastline.
1,046 m: Highest point, Kao Volcano on Kao Island.
30 sq km: Total water area.

People and Society

Tonga's population is predominantly Tongan (96.5%), with a significant urban concentration on Tongatapu Island. The nation has a relatively young demographic, with a median age of 26.4 years as of 2025. The literacy rate stands at 91.1%, and the population is predominantly Christian, with a majority adhering to Protestantism. However, the country faces a declining growth rate and significant emigration.

104,519: Estimated population in 2025.
96.5%: Percentage of the population that is Tongan.
29.3%: Proportion of the population aged 0-14 years.
23.2%: Urban population as of 2023.
2.59: Total fertility rate (children born per woman) in 2025.

Economy

Tonga has a diverse economy with a reliance on tourism, agriculture, and international remittances which constituted 50% of GDP in 2023. The GDP stands at approximately $740 million (PPP) for 2023, with a growth rate of 2.1%. The government is focused on developing its agricultural sector, while also managing external debts and increasing public investments.

$740.082 million: Real GDP (PPP) in 2023.
2.1%: Projected GDP growth rate for 2023.
50%: Remittances as a percentage of GDP in 2023.
20.6%: Percentage of the population living below the poverty line as of 2021.
2.2%: Unemployment rate projected for 2024.

Government

Tonga is a constitutional monarchy with a complex governance structure involving a combination of traditional leadership and modern democratic practices. The monarch, currently King TUPOU VI, plays a significant role in governance alongside a democratically elected Legislative Assembly. The country regained its full independence in 1970 and has since undergone reforms to enhance democratic participation.

4 June 1970: Date of Tonga's independence from the UK.
30: Number of seats in the unicameral Legislative Assembly.
21 years: Minimum voting age.
3.8%: Percentage of women in the Legislative Assembly as of the latest election.

Military and Security

Tonga's military, comprising approximately 600 active members, is tasked with national defense and maritime security, operating under His Majesty's Armed Forces. Military expenditures are estimated at 1.6% of GDP for 2023, reflecting the country's commitment to maintaining a capable defense force while cooperating with regional allies.

1.6%: Military expenditure as a percentage of GDP in 2023.
600: Estimated active personnel in Tonga's military.
16-25 years: Age range for voluntary military service.
89%: Percentage of the installed electricity capacity derived from fossil fuels.

Energy

Tonga has achieved 100% electricity access for its population, with energy consumption largely sourced from fossil fuels. The country has installed approximately 34,000 kW of generating capacity, with increasing initiatives for renewable energy integration.

34,000 kW: Installed electricity generating capacity in 2023.
67.01 million kWh: Total electricity consumption in 2023.
5.99 million kWh: Electricity transmission and distribution losses in 2023.

Environment

Tonga faces environmental challenges such as deforestation, soil exhaustion, and water pollution, which threaten its coral reefs and biodiversity. The nation participates in several international environmental agreements aimed at addressing climate change and protecting natural resources.

48.6%: Percentage of land used for agriculture as of 2023.
174,000 metric tonnes: Estimated CO2 emissions in 2023.
14%: The estimated increase in urban population between 2020 and 2025.

Transportation

Tonga has a modest transportation infrastructure with six airports and a small fleet of merchant marine vessels. The ports play a crucial role in trade, particularly for tourism and fishing.

6: Total number of airports.
29: Total number of registered merchant marine vessels in 2023.
3: Number of key ports, including Nuku Alofa and Neiafu.

Communications

The communication system in Tonga includes various media outlets and telecommunications infrastructure, with a growing number of internet users. The country has made strides in expanding mobile and fixed-line subscriptions, enhancing connectivity for the population.

59%: Percentage of the population with internet access in 2023.
64,800: Mobile cellular subscriptions in 2022.
8: Fixed broadband subscriptions per 100 inhabitants in 2022.

Key Metrics

Metric	Value	Note
Population	104,519	Estimated for 2025
Area	747 sq km	Total land area
GDP (Purchasing Power Parity)	$740.082 million	Estimated for 2023
Unemployment Rate	2.2%	Projected for 2024
Birth Rate	19.43 births/1,000 population	Estimated for 2025
Life Expectancy	78 years	Estimated for 2024
Energy Consumption	23.272 million Btu/person	Estimated for 2023
Carbon Dioxide Emissions	174,000 metric tonnes	Estimated for 2023
Electoral Participation	21 years	Minimum voting age
Literacy Rate	91.1%	Estimated for 2019