Curved off from Catholic Diocese of Eldoret.

It was established on 3rd April 1998.
Rt. Rev. Maurice Anthony Crowley, was installed as her first Bishop on 15th August 1998.
Currently, One Vicar General: Very Rev.Fr.Cosmas Ngomba who has succeeded other Vicars.
Has four Deans:

Fr. Daniel Nakameti-Kitale West Deanery.
Fr. Daniel Waweru-Kapenguria Deanery.
Fr Julius Shibanda-Kitale East Deanery.
Fr. Dharmu Hendry SMA-Ortum Deanery.

One Bishop’s Personal Assistant.Currently,Rev.Fr.Micah Kibet Kemboi