Population of the Republic of the Congo

As of May 2025, the population of the Republic of the Congo is 6.4 million. The number of inhabitants has increased by 140 thousand in the last year, representing a growth of 2.23%. The median age of the population has increased in recent years, rising from 18.1 years in 2015 to 18.7 years in 2025. Currently, life expectancy at birth is 63.7 years and population density is 18.7 inhabitants per square kilometer.

Population Growth

The population growth rate of the Republic of the Congo peaked in 2000, reaching around 5.01% annually, but has since declined to approximately 2.2% in 2025. The annual increase in the number of people has also decreased from a peak of around 212.7 thousand in 2009 to nearly 140.17 thousand in 2025.

Life Expectancy

In the Republic of the Congo, life expectancy at birth has been increasing, with the indicator rising from 58.1 years in 2005 to 63.7 years in 2025, representing an increase of almost 6 years over the past 2 decades.

Most populous cities in the Republic of the Congo

The cities of the Republic of the Congo are mostly small, but 4 stand out with more than 100 thousand inhabitants. The most populous city is Brazzaville, with approximately 2 million inhabitants. It is followed by Pointe-Noire with 1 million and Dolisie, Niari with 121 thousand.

These are the 20 most populous cities in the Republic of the Congo: