The station building is located on the east side of the tracks and houses a waiting room as well as a local tourist information office.

The ticket window is unstaffed but some types of tickets are sold by a kan'i itaku agent at a shop for local products/tourist information office located at the Hiwasa Road Station on the west side of the tracks.

[5] Access to the island platform is by means of a level crossing or a metal footbridge.

[2][6][3] Japanese Government Railways (JGR) opened Hiwasa Station on 14 December 1939 as the terminus of the Mugi Line which had been extended southwards from Awa-Fukui.

On 1 April 1987, with the privatization of Japanese National Railways (JNR), the successor of JGR, JR Shikoku took over control of the station.