is a railway station in Nan'yō, Yamagata, Japan, operated by the Yamagata Railway.
Lines
Miyauchi Station is a station on the Flower Nagai Line, and is located 3.0 rail kilometers from the terminus of the line at Akayu Station.
Station layout
Miyauchi Station has a single Island platform.
Platforms
Adjacent stations
History
Miyauchi Station opened on 26 October 1913 as . The station was absorbed into the JR East network upon the privatization of JNR on 1 April 1987, and became a station on the Yamagata Railway from 26 October 1988, and was renamed to its present name on the same day.