Services to residents in RW 10 Kayumanis, Matraman sub-district, if you want to make a cover letter for RT, the RW still experiences a manual system by coming directly to the RT secretariat's house. The problem is that it often happens that the RT is not at home. To overcome administrative problems, the author makes a web-based administration application in the Kayumanis village by changing the procedure from manual to computerized and to provide the best service for residents. The system development method used is SDLC starting from requirements making needs analysis of procedures in data services at the local RT, both designs making data service system designs using use case modeling, activity diagrams and proposal diagrams, the third stage of implementation is implementing from design to source. code according to the flow, the last stage of testing is testing the population administration service application accompanied by the head of the local RT.