The Regional District of Kitimat–Stikine is a local government administration in northwestern British Columbia, Canada. As of the 2021 Canadian census, it had a population of 37,790 living on a land area of 104,307.25 km2 (40,273.25 sq mi). Its administrative offices are in the city of Terrace. The next-largest municipality in the regional district is the District Municipality of Kitimat. The other incorporated municipalities in the regional district are the Village of Hazelton, the District of New Hazelton and the District of Stewart. There are many unincorporated communities, most of them Indian reserves which are not part of the governmental system of the regional district, which has limited powers relating mostly to municipal-type services. The remote settlement of Dease Lake, formerly in the Stikine Region, was added to the regional district on December 1, 2007. Thornhill is the largest unincorporated community in the regional district with a population of 3,932 residents.