From the Wikipedia page [1]
Butaleja District is a district in Eastern Uganda. It is named after its 'chief town', Butaleja, where the district headquarters are located.
Butaleja District is bordered by Budaka District to the north,Mbale District to the east, Tororo District to the southeast, Bugiri District to the south and Namutumba District to the west. The district headquarters at Butaleja, are located approximately 38 kilometres (24 mi), by road, southwest of Mbale, the nearest large city.