Burnout is one of the factors that adversely affects human resource in performance of work. Studies have revealed that in schools burnout inactivates head teachers reducing their achievement. School factors such as lack of physical facilities, inadequate rewards and school insecurity increase level of burnout which has been linked to underperformance by head teachers and translate to poor academic performance in schools. In Butula Sub-county, preliminary survey on five head teachers indicated that head teachers were experiencing burnout. The objective of this study was to determine burnout levels among head teachers in public primary schools in Butula Sub County. A conceptual framework showing the relationship between independent variables (school factors) and dependent variable (head teachers burnout) were used to guide the study. The findings of the study were that the overall burnout level among head teachers was moderate. The study concluded that head teachers experience moderate burnout. The study recommended that head teachers should adopt methods of dealing with burnout by addressing school factors that influence burnout. The findings of this study are significant to stakeholders in education as they provide information that can inform policy formulation that can minimize burnout among head teachers.