Before Western Lakes State was formed, it was part of Lakes State. On 2 October 2015, President Salva Kiir issued a decree establishing 28 states in place of the 10 constitutionally established states. The decree established the new states largely along ethnic lines. A number of opposition parties and civil society groups challenged the constitutionality of the decree. Kiir later resolved to take it to parliament for approval as a constitutional amendment. In November the South Sudanese parliament empowered President Kiir to create new states.
Abraham Makoi Bol was appointed as the governor on 24 December 2015. Makoi was removed from office on 27 February 2017 on the orders of President Kiir, with Matur Chut Dhuol being appointed as new governor. Chut had already served as governor of Lakes State before its dissolution.
Rumbek has a tropical savanna climate. It is warm every month with both a wet and dry season. The average annual temperature for Rumbek is 35° degrees and there is about 551 mm of rain in a year. It is dry for 171 days a year with an average humidity of 52% and an UV-index of 7
Administrative divisions
After the split up, Western Lakes State broke down even further for a total of 9 counties in the state. The 9 counties are part of the 180 counties in South Sudan. The 9 counties are consisted of the following:
1 - state created in 2017; 2 - created from Gbudwe State; 3 - created from Bieh State (formerly known as Eastern Bieh State); 4 - created due to dissolution of Eastern Nile State; 5 - created from Latjoor State