The first church started in Mithimusanju. The name Kasanga refers to the present name of the place. The first catechist of the church was called Semeho Mulere, and this was in the year 1922. The catechist was coming from Rugazi parish presently in Rubirizi district. The first church is said to have begun under a Mubiriri tree, on the land that was provided by one called Kanuma Mathumo.
The first Catechumen were: Mr. Yakobo Katswamba and Yakobo Mbabaisi.
In 1954, the church transferred to its present site, and by then Mr. Musysenene Aprunalis was the catechist. When the catechist had increased by number, Rev. Fr. Yohana Bulyabuga used to commute from Bunyaruguru to Kasanga to oversee the growth of christainity in the church. Meanwhile the place where the parish primiese are, was given by Mr. Peter Bakalhania Kalendu. It is bilied however, that the church bought some more land Mr. Lazaro Kyuma, Mr. Kalyamwani, Mr. Yoona Muhindo, Mr.. Muhanika and Mr. Ezira Kabatoro.
Kasanga was declared a parish in 1957 with Fr. Yohana Balyabuga as the first parish priest.
KASANGA CATHOLIC BASED SCHOOLS/ INSTITUTIONS

PURPOSE OF STARTING THE PARISH

Kasanga is established as a parish center to improve on the spiritual renewal of the Christians and bringing sacramental life nearer to the Christians.
To reduce on the work load for the priests working in Kasanga who have been serving 60 out stations.
To help priest to be more available for the Christians.