Population of Tonga

As of July 2026, the population of Tonga is 103.3 thousand. The number of inhabitants has decreased by 442 in the last year, representing a decline of 0.43%. The median age of the population has increased in recent years, rising from 20.7 years in 2016 to 21 years in 2026. Currently, life expectancy at birth is 73.4 years and population density is 158.9 inhabitants per square kilometer.

Population Growth

The population growth rate of Tonga peaked in 1956, reaching around 3.2% annually, but has since declined to approximately -0.43% in 2026. The annual increase in the number of people has also decreased from a peak of around 2.36 thousand in 1975 to nearly -442 in 2026.

Life Expectancy

In Tonga, life expectancy at birth has been increasing, with the indicator rising from 70.7 years in 2006 to 73.4 years in 2026, representing an increase of almost 3 years over the past 2 decades.

Most populous cities in Tonga

The cities of Tonga are small, with the 5 most populated adding up to around 37.1 thousand inhabitants. The most populous city is Nuku‘alofa, Tongatapu, con una diferencia significativa sobre las demás, alcanzando approximately 22.4 thousand inhabitants. It is followed by Mu‘a, Tongatapu with 3.9 thousand and Neiafu, Vavau with 3.8 thousand.

These are the 20 most populous cities in Tonga: