The Shire of Derby-West Kimberley is one of four local government areas in the Kimberley Region of northern Western Australia, covering an area of 104,080 square kilometres (40,186 sq mi), most of which is sparsely populated. The Shire's estimated population in June 2011 was 8,231, with most residing in the major towns of Derby, which is also the Shire's seat of government, and Fitzroy Crossing.