[1] Kitui District was created in 1895 as one of the original districts of Ukamba Province among, Ulu (then named Athi and later Machakos), and Kikuyu districts.
[2][3] By the 2000s, Kitui District had three more districts created from it; Mutomo, Mwingi and Kyuso, all had a population of 872,742.
[4] In 2010, after the promulgation of the new constitution of Kenya, counties were to be created based on the districts of Kenya that existed prior to 1992.
This effectively led to the creation of Kitui County.
Kitui district was divided into eight administrative divisions: Central (Kitui), Kabati, Chuluni, Mutitu, Mwitika, Mutomo (Ikanga), Ikutha and Yatta.