월림리에는 섬계리·당산리 등 2개의 행정리가 있으며, 섬계마을은 섬계리에, 당산마을은 당산마을에 속한다.
There are two administrative districts in Wolrim-ri: Seomgye-ri and Dangsan-ri, and Seomgye Village belongs to Seomgye-ri and Dangsan Village belongs to Dangsan-ri.