From the Wikipedia page [1]

Kigoma is a town and lake port in north western Tanzania, on the north eastern shores of Lake Tanganyika and close to the border with Burundi and The Democratic Republic of the Congo. It serves as the capital for the surrounding Kigoma Region and has a population of 135,234 (2007 census) and an elevation of 775 m.

The historic trading town of Ujiji is 6 km south-east of Kigoma.