Wellington is a town in the Central Western Slopes region of New South Wales, Australia, located at the junction of the Wambuul Macquarie a…Wellington is a town in the Central Western Slopes region of New South Wales, Australia, located at the junction of the Wambuul Macquarie and Bell Rivers. It is within the local government area of Dubbo Regional Council. The town is 362 kilometres northwest of Sydney on the Mitchell Highway and Main Western Railway, and 50 km southeast of Dubbo, the main centre of the Central Western Slopes region.