Cardwell is a coastal town and rural locality in the Cassowary Coast Region, Queensland, Australia. In the 2021 census, the locality of Ca…Cardwell is a coastal town and rural locality in the Cassowary Coast Region, Queensland, Australia. In the 2021 census, the locality of Cardwell had a population of 1,320 people. The Bruce Highway National Highway 1 and the North Coast railway line are the dominant transport routes; connecting with the Queensland provincial cities of Cairns and Townsville. Cardwell railway station in Bowen Street serves the town.