Tōkyū Den-en-toshi Line
Mizonokuchi Station is served by the Tōkyū Den-en-toshi Line and Tōkyū Ōimachi Line. It is 11.4 kilometers from the starting point of the Tōkyū Den-en-toshi Line at Shibuya Station, and is the starting point of Tōkyū Ōimachi Line services, which branch off at Futako-Tamagawa Station. Musashi-Mizonokuchi Station on the JR East Nambu Line is located adjacent to it.