They are: Juba, Kajo Keji, Liria, Mongalla, Wonduruba, Rokon, Tali, Terekeka, Yei, Ji-Menze, Tombek, Tindilo, Kaya, Muni, Morobo, and Rijong.

Major tribes of Central Equatoria have included the Bari, Mandari, Pojulu, Kakwa, Keliko, Kuku, Lugbara, Avukaya, Baka, Nyangwara, Adio, and Lulubo.

Minor tribes have included the Nyepo in Northern Kajo Keji County and the Lokoya along the Nimule Road.

The agriculturalists out of these are the Bari,Kuku, the Kakwa, Avokaya, Mundo, Pojulu, Lokoya, Lulubo, Nyangwara, Keliko, Nyepo.

Many South Sudanese fled to Ethiopia, Kenya and Uganda, where they interacted with the nationals and learned their languages and culture.

Although the common languages spoken are Juba Arabic and English, Swahili began to be introduced to the population to improve the country's relations with its East African neighbors.

Many people from Central Equatoria use English, Kiswahili, Juba Arabic, their dialect, or a mixture of the languages mentioned.