Brimbago railway station was located on the Adelaide-Wolseley railway line in the locality of Brimbago, 261 kilometres from Adelaide railway station by rail.

Brimbago railway station was located between Keith and Wirrega on the Adelaide-Wolseley line, and it was on the Nairne to Bordertown section of the line which opened in 1886. 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. However, the locality did not receive a siding until 10 February 1913. The facilities included a passenger platform, and a goods siding with a platform and shed. The railway station was named after the livestock station of the same name, and it is a local Aboriginal name meaning "big swamp." It was suggested to change the name of the siding in 1917, but this never happened. On 19 January 1938, a large scrub fire caused damage to telephone infrastructure and sleepers, delaying some trains and almost trapping a ministerial party inspecting road works near Brimbago. Hasty repairs were conducted along the line to minimise the wait for express trains. On 15 January 1941, a railway electrian was killed after his railway quadricycle hit a large unregistered dog at Brimbago and was turned over from the collision. As a result of the incident, the Tatiara District Council decided to prosecute landowners with unregistered dogs the following month. The station received facilities for loading livestock in 1960.

In 1978, the station and all associated infrastructure was included in the transfer of South Australian Railways to Australian National. From 1 February 1980, Brimbago no longer accepted less-than-car loads, but was still open to take wagon loads until 1 November 1980, when the siding closed to freight. Brimbago was fully closed to passengers on 5 February 1981, and all station infrastructure was demolished later that year, leaving the mainline track and signals.

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