History
Sayamagaoka Station opened on 15 April 1915 on the Musashino Railway — predecessor of today's Seibu Railway — as Moto-Sayama Station. It was renamed Mikajimamura Station that September and took its present name on 1 March 1933. A footbridge station building entered service on 14 June 1970. Until 1990 the station handled bagged-cement freight to Higashi-Yokoze; the freight platform alongside the up siding has been preserved. East-side gates opened on 1 April 1993, and accessibility upgrades were completed on 14 February 2003. The station was reclassified as a remotely-staffed stop on 1 April 2025 with the ticket window closed. Located in Tokorozawa, Saitama, the station carries the number SI20.
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
Sayamagaoka has changed its name twice: first from Moto-Sayama to Mikajimamura in September 1915, and again to Sayamagaoka on 1 March 1933 — three different names within its first eighteen years.