Nkayi Population 2026
Nkayi has a population of 103,000, making it the #4 biggest city in 🇨🇬 Congo, located in Bouenza. Roughly 1.6% of Congo's population lives here. It is about 19× smaller than Brazzaville, the country's biggest city.
Population (city proper)
103,000
Rank in Congo
#4
Coordinates
4.18°S, 13.29°E
~181 m elevation · Africa/Brazzaville
Distance to capital (Brazzaville)
222 km
138 miles, straight line
Other big cities in Bouenza
Cities near Nkayi
FAQ
What is the population of Nkayi?
Nkayi has a population of 103,000 (city proper, latest official figure via GeoNames), making it the #4 biggest city in Congo.
What region is Nkayi in?
Nkayi is located in Bouenza, Congo.
Is Nkayi the capital of Congo?
No, the capital of Congo is Brazzaville, about 222 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.