Kisumu is a port city in western Kenya at 1,131 m (3,711 ft), with a population of 355,024 (1999 census). It is the third largest city in Kenya, the principal city of western Kenya, the capital of Nyanza Province and the headquarters of Kisumu District. It has no municipal charter. It is the largest city in Nyanza Province and second most important city after Kampala in the greater Lake Victoria basin.