It is a known fact that governments alone can no longer shoulder the responsibility of education; hence, there is a need to consider other stakeholders whose contributions may help to salvage the situation. This study was carried out to investigate the effect of community and private participation in infrastructural and sustainable quality of secondary education in Ogun State. Descriptive survey research design was used. Ten (10) Secondary Schools were randomly selected while 42 teachers 112 community members and 54 private secondary school owners were selected for the study. Pearson Product Moment Correlation Coefficient was used in analyzing the data. The major instrument used is questionnaire tagged Community and Private Participation in Secondary Education Questionnaire (CPPSEQ) while the SSCE conducted by WAEC and NECO in the last 5 years were used to measure the impact of the intervention of communities and private bodies on secondary education. The result revealed significant contributions of community and private bodies to the development and enhancement of infrastructure and quality service delivery in secondary education. It was recommended among other things that the ideal secondary school should be jointly administered by the government and members of the host community through the CDA, PTA, school based management committee and old student associations. Government should provide enabling environment for the private sector to thrive through proper legislations and concessions without necessarily compromising standard. Individuals and corporate bodies should be encouraged to invest in Secondary Education for enhanced infrastructural and academic quality.