Efficient agricultural data management is crucial for ensuring timely government support and improving the productivity of farming communities. In the Philippines, the Municipal Agriculture Office (MAO) of Peñablanca, Cagayan, depends on the Registry System for Basic Sectors in Agriculture (RSBSA). The limitations of RSBSA, including inaccuracies in records, delays in registration, and restricted system access, hinder the office's effective service delivery. This study developed and implemented a tailored Database Management System (DBMS) using Agile methodology to evaluate existing challenges, design a user-friendly DBMS, implement the system, and assess its usability and impact. The DBMS streamlined workflows, enhanced data accuracy, and reduced task completion times, such as decreasing farmer registration from 15 minutes to 5 minutes and validating beneficiary lists from six hours to seconds. Usability testing yielded a high Single Usability Metric (SUM) score of 86.19%, reflecting strong performance and user satisfaction. Key features included automated data validation, simplified beneficiary list generation, and efficient record updates, addressing critical challenges faced by the MAO. The developed system not only optimized operations but also strengthened the MAO’s capacity to manage agricultural data and support local programs effectively, positioning it for continued refinement to meet evolving organizational needs.