Low civic engagement remains a global concern. The study aimed to determine the significance of socio-environmental factors and attitude as influences on civic engagement. A diagnostic research design, stratified random sampling, survey approach, and multiple linear regression were applied. The data from 155 Grade 12 students revealed that only socio-environmental factors significantly influenced civic engagement, partially affirming Social Cognitive Theory. Future studies may explore additional variables to account for the remaining 11.2% of the variance in civic engagement strength. Educational practitioners may initiate socio-environmental activities and environmental attitude-raising programs towards achieving optimal outcomes in students' civic engagement.