This study aimed to evaluate the Comprehensive Development Plan-Executive Legislative Agenda (CDP-ELA) Administration among cities in South Central Mindanao, Southern Philippines. To achieve the study's objectives, a descriptive-predictive research design was utilized in which the researcher-made survey questionnaire was used in acquiring data. A total of 148 respondents using purposive sampling were the study samples; they were the planning core group, support group, and technical working group among Tacurong, Koronadal, General Santos, Kidapawan, Southern Philippines. The data were tallied, analyzed, and interpreted using regression analysis. Regression analysis revealed that the best predictor of social development was not significant, while the other two variables were statistically significant. Further, the regression analysis between the overall attainment of objectives and ELA showed that these could be predicted from the Local Development Investment Program (LDIP). Hence, the Comprehensive Development Plan-Executive Legislative Agenda's administration among cities has helped improve the performance of local government and every individual's wellbeing to reach their full potential.