The study analyzed the administrative styles of secondary and primary schools for the purpose of engendering optimum performance of learners in Ogun State. The study adopted a descriptive survey research design. The population comprises of all secondary schools teachers in Abeokuta South Local Government, Ogun State, Nigeria. The simple random sampling technique was used to select ten secondary schools in the Local Government from which fifteen teachers were randomly selected each to make a total of one hundred and fifty teachers as sample for the study. Two research questions were raised and answered in the study. A self-developed questionnaire was used as the instrument for data collection. The reliability of the instrument was determined using the Cronbach Alpha and data collected were analyzed using simple percentage, mean and standard deviation. The findings revealed that head teachers and principals of primary and secondary schools in Ogun state are effective in school administration; that there was relationship between the administrative styles and learners’ academic performance and that administrative effectiveness is a major factor that determines school success. It is therefore recommended that principals/head teachers should look inward and ensure that their staff are motivated; they should improve on their skills of time management and ensure supervision of assignments given to their teachers. Principals/head teachers should try to be skillful in their administrative strategies to raise the level of learners’ discipline and academic performance.