The locality was originally called Well Holes. The current locality name of Benarkin takes its name from
Benarqui from the
Dungibara language which refers to the blackbutt tree (
Eucalyptus pilularis) which are common in the district. When the Blackbutt railway station was built to serve the town of
Blackbutt, it was some distance from the town, so it was decided to name the railway station
Bernakin in 1910 and this name was then used for the settlement that grew up around the railway station. Because of the close proximity ( apart) and intertwined history of the two towns, they are often referred to as the twin towns of Blackbutt-Benarkin. Macnamara's Camp Provisional School opened on 4 July 1910 but in November 1910 it was moved to Well Holes and renamed Well Holes Provisional School. In 1911, it was renamed Benarkin Provisional School. The school was operating from a tent. In March 1913 a building was constructed and it became Benarkin State School on 1 April 1913. It closed in 1920, but reopened on 4 September 1935. Benarkin Post Office opened by March 1911. On 11 November 1996, a memorial was established to jointly commemorate the soldiers who took part in the
Battle of Hill 60 at Gallipoli in
World War I and the pioneer forestry workers of the district. The memorial is located on Hill 60 Road in the Benarkin State Forest (). On 1 February 2018, Benarkin's postcode changed from 4306 to 4314. == Demographics ==