The study triangulated household survey data for fever in children under the age of five years with georeferenced public health facility databases (n = 86,442 facilities) in 29 countries across sub-Saharan Africa, to estimate the probability of seeking treatment for fever at public facilities. Given national healthcare coverage gaps, understanding treatment-seeking behavior for fever is crucial for the management of childhood illness and to reduce deaths. The probability of obtaining appropriate treatment for febrile illnesses is a key factor in reducing disease morbidity and mortality in sub-Saharan Africa. Using a combination of health facility databases and household level reported actions concerning the treatment of fever, research findings show national and sub-national variation in the probability of seeking treatment for fever in the public sector.