Namutumba is approximately , by road, northeast of
Jinja, the largest city in the
Busoga sub-region. to the southwest of Namutumba, is the closest neighboring trading center and has the nearest post office. To the northeast of Namutumba is
Tirinyi in
Kibuku District, another small town on the main
Iganga–Tirinyi–Kamonkoli–Mbale Road. The coordinates of Namutumba are 0°50'06.0"N, 33°41'06.0"E (Latitude:0.8350; Longitude:33.6850). Namutumba Town sits at an average elevation of above
mean sea level.{{cite web|url=https://elevationmap.net/namutumba-district-ug ==Population==