Kaya is a city in Central Equatoria, South Sudan. The city is located in Kimba Payam, Morobo County, Central Equatoria State, in extreme s…Kaya is a city in Central Equatoria, South Sudan. The city is located in Kimba Payam, Morobo County, Central Equatoria State, in extreme southwestern South Sudan. It is located near the international border with the Republic of Uganda. Kaya is located approximately 78 kilometres, by road, southeast of Yei the nearest large city. This location lies approximately 220 kilometres, by road, south of Juba, the capital of South Sudan and largest city in the country. Kaya sits directly across the border from Oraba, in Uganda.