Iwamurada

Departure data for this station is not available on this site.

Iwamurada Station opened on 8 August 1915 with the completion of the Saku Railway's Komoro–Koumi section, and currently sits on JR East's Koumi Line, 70.6 km from Kobuchizawa. The Saku Railway was nationalised on 1 September 1934 and absorbed into the Ministry of Railways' Koumi North Line, predecessor of today's Koumi Line. The station became a JR East facility on 1 April 1987. The Midori no Madoguchi staffed office, opened in 1991, was closed on 28 February 2022 and replaced by a reserved-seat ticket machine. A full station building reconstruction began in June 2024 and the new building entered service on 20 February 2025.

At its opening, the station deployed a temporary halt near the Yanagimachi level crossing southeast of the main station, used only during local festival days.