Charlton is a town in western Victoria, Australia. It is a small agricultural community straddling the Avoca River, located at the junction of the …Charlton is a town in western Victoria, Australia. It is a small agricultural community straddling the Avoca River, located at the junction of the Calder Highway and Borung Highway and positioned in the last of the foothills of the Great Dividing Range. Halfway between Melbourne and Mildura, Charlton is a popular tourist stop.