Keikyū Tomioka Station is served by the Keikyū Main Line and is located 36.7 kilometers from the terminus of the line at Shinagawa Station in Tokyo.

The station consists of a single elevated island platform and single side platform serving three tracks, with the station building located underneath.

The station closed on January 10, 1947, and reopened on March 1, 1947 exclusively for the use by American occupation forces in Japan.

Ordinary Japanese citizens were permitted to use the station again in late 1948.

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