- Bangui is the capital and largest city of the Central African Republic. It is located on the northern bank of the Ubangi River, near the border with the Democratic Republic of the Congo. The city has a population of approximately 750,000 people, making it the country's most populous city. Bangui serves as the political, administrative, and economic center of the Central African Republic. The city has a tropical savanna climate and is known for its markets, cultural heritage, and historical sites. However, it has also been affected by political instability and conflict in recent years.