Administrative governance at the Rukun Warga (RW), or neighborhood-association, level provides an essential foundation for orderly data management, timely service delivery, transparency, and continuity of resident information. This community engagement program aimed to strengthen the administrative capacity of RW 05 in Kreo Urban Village, Larangan District, Tangerang City, through mentoring in the implementation of a more systematic, standardized, and digitally adaptive administrative system. A participatory approach was employed, comprising needs identification, document and database standardization, training, hands-on practice, implementation mentoring, and evaluation. The administrative system focused on resident data management, correspondence registration, document archiving, activity documentation, and the development of service procedures that could be readily implemented by the RW administrators. The program resulted in a more systematic administrative workflow, standardized document formats, improved archive retrievability, and greater administrator understanding of digital data and document management. Quantitative outcomes, such as improvements in participant comprehension scores and service-time efficiency, should be aligned with the actual field-evaluation results when the article is finalized. Continuous mentoring, periodic data updates, role-based access management, and regular archive backups are recommended to sustain the system. Overall, the program demonstrates that strengthening administrator capacity through appropriate technology and consistent procedures can support more effective, accountable, and responsive neighborhood-level governance.