History
Iwanami Station traces its origins to the Iwanami Signal Station, opened on 1 May 1911 on what was then the Tōkaidō Main Line between Gotenba and Sano (today's Susono). Reclassified as a signal post in April 1922, it was upgraded to a full passenger station on 8 December 1944, by which time the line had been relabelled the Gotenba Line. The line through Iwanami was singled in July 1943 and electrified on 1 July 1968, when the old switchback layout was abolished. With JNR privatisation on 1 April 1987 the station passed to JR Central. A new ground-level station building, an additional up platform and a multi-purpose toilet entered service on 26 May 2019.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.
Notes
From 1969 to 1982 the station hosted a Toyota Motor freight branch that took finished cars out of the East Fuji plant; traces of the embankment that carried the spur remain north of the station today.