Tocumwal is on the NSW side of the Murray River and one of the few border towns that does not have a sister (cross border counterpart). Similarly to the other Murray River towns Tocumwal is also a great small border town. Heritage management in Tocumwal is positively managed, and the old and new work well in the town.The town is said to be named for the local Aboriginal word for "deep hole in the river”
The first pastoral runs were established in the 1840s. The town was established in the early 1860s and recognised as a village in 1872. Tocumwal Post Office opened on 1 August 1868.
Prior to Federation, Tocumwal was an important customs point for goods crossing between the then colonies of Victoria and New South Wales.
During WW2 the town was the site of Royal Australian Air Force Station Tocumwal, which was a major Royal Australian Air Force training airfield and aircraft depot. Today, the airfield is a renowned gliding site