Population of Tonga

As of May 2026, the population of Tonga is 110.4 thousand. The number of inhabitants has increased by 897 in the last year, representing a growth of 0.83%. The median age of the population has increased in recent years, rising from 20.8 years in 2016 to 22.4 years in 2026. Currently, life expectancy at birth is 71.8 years and population density is 170 inhabitants per square kilometer.

Population Growth

The population growth rate of Tonga peaked in 1956, reaching around 3.28% annually, but has since declined to approximately 0.81% in 2026. The annual increase in the number of people has also decreased from a peak of around 2.16 thousand in 1965 to nearly 897 in 2026.

Life Expectancy

In Tonga, life expectancy at birth has been increasing, with the indicator rising from 69.9 years in 2006 to 71.8 years in 2026, representing an increase of almost 2 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: