Coomandook station was located between Cooke Plains and Yumali on the Adelaide-Wolseley line, and the line through Coomandook was opened in 1886 as part of the extension from Nairne to Bordertown.

[1] The line opened in stages: on 14 March 1883 from Adelaide to Aldgate, on 28 November 1883 to Nairne, on 1 May 1886 to Bordertown and on 19 January 1887 to Serviceton.

[3][4] The original station was replaced with a smaller brick building and platform in later years.

The station closed on 31 December 1990 upon cessation of all AN intrastate services in South Australia.

[5] This article about a railway station in South Australia is a stub.