京王線
The area around Musashi-sakai has the standard commercial activity common to suburban Tokyo train stations, with a branches of the Ito Yokado department store, JR-owned Hotel Mets, and the Tokyo-Mitsubishi UFJ Bank, as well as a shopping street with many restaurants and small shops on the north side. The station has the standard taxi rank and bus stops, servicing bus routes between there and Hibarigaoka Station on the Seibu Ikebukuro Line to the north and Chōfu Station on the Keiō Line to the south.