Kami-Ōi Station has two opposed side platforms and wooden station building. When it opened, it had only a single through platform, but just before the electrification of the Gotemba Line, facilities for trains' crossing had been attached and the station came to have two platforms. The station is unattended.
History
Kami-Ōi Station was opened on June 1, 1948 on the Japan National Railways (JNR) Gotemba Line for passenger service only. The route through the station was electrified in 1968. Freight services were discontinued on February 1, 1971. On April 1, 1987 along with privatization and division of JNR, the station came under control of the Central Japan Railway Company. It has been unattended since March 22, 1997.
Station numbering was introduced to the Gotemba Line in March 2018; Kami-Ōi Station was assigned station number CB02.[1][2]
Passenger statistics
In fiscal 2018, the station was used by an average of 490 passengers daily (boarding passengers only).[3]
The passenger figures (boarding passengers only) for previous years are as shown below.
^"在来線駅に駅ナンバリングを導入します" [Introducing station numbering to conventional line stations] (PDF). jr-central.co.jp (in Japanese). 13 December 2017. Archived from the original(PDF) on 18 January 2023. Retrieved 27 February 2023.
^"JR東海,在来線に駅ナンバリングを導入" [JR Tokai Introduces Station Numbering to Conventional Lines]. Japan Railfan Magazine Online (in Japanese). 14 December 2017. Archived from the original on 1 November 2020. Retrieved 28 February 2023.
^山北町統計書 [Yamakita Town statistics (fiscal 2018)] (PDF) (in Japanese). Japan: Yamakita Town. Retrieved 26 March 2021.
^神奈川県県勢要覧(平成18年度) [Kanagawa Prefecture official statistics (fiscal 2005)] (PDF) (in Japanese). Japan: Kanagawa Metropolitan Government. Retrieved 26 March 2021.
^神奈川県県勢要覧(平成23年度) [Kanagawa Prefecture official statistics (fiscal 2010)] (PDF) (in Japanese). Japan: Kanagawa Prefecture. Retrieved 26 March 2021.
^神奈川県県勢要覧(平成28年度 [Kanagawa Prefecture official statistics (fiscal 2010)] (PDF) (in Japanese). Japan: Kanagawa Prefecture. Archived from the original(PDF) on 1 August 2017. Retrieved 26 March 2021.