Westbury is a town in the central north of Tasmania, Australia. It lies 30 km west of Launceston on the Bass Highway, and at the 2021 census ha…Westbury is a town in the central north of Tasmania, Australia. It lies 30 km west of Launceston on the Bass Highway, and at the 2021 census had a population of 2,272. It is part of, and the headquarters of, the Meander Valley Council area.