History
Shin-Koyasu Station opened on 1 November 1943, established by the Railway-and-Transport Ministry between Tsurumi and Higashi-Kanagawa to handle commuter traffic in the late war years. Because the station was opened the day after Manseibashi Station on the Chūō Main Line was closed, equipment from that disused station was relocated and reused here. From the outset only Keihin-Tōhoku Line stopping trains served the platforms, and that remains the case today. JR East took over the station upon the 1987 privatisation, automated turnstiles entered service in June 1992, and Suica became usable from 18 November 2001. The staffed Midori-no-Madoguchi closed at the end of February 2006, and smart platform-edge doors began operating from 24 January 2021.
History summarized from Japanese & English Wikipedia · last reviewed 2026-06-09.
Where the English and Japanese sources differ, this account follows the Japanese source.
Notes
Although the station is on the Tōkaidō Main Line by track designation, only Keihin-Tōhoku trains running on the parallel electric tracks ever stop, so timetables and signage never refer to it as a Tōkaidō Line station.