History
Osa Station opened on 3 March 1915 as a stop on what is today the Hōjō Line, a short branch reaching inland from the San'yō coast. It became part of the Hōjō Railway Company's third-sector operations after the line was spun off from Japanese National Railways. In 2014 the original wooden station building and platform were officially registered by Japan's national government as a National Registered Tangible Cultural Property, recognising the structure as a surviving example of early 20th-century rural-line architecture. The unattended station is 9.8 kilometres from the line's terminus at Ao and currently records an average of about 35 passengers per day.
History summarized from Japanese & English Wikipedia · last reviewed 2026-05-18.