The Squamish-Lillooet Regional District is a quasi-municipal administrative area in British Columbia, Canada. It stretches from Britannia Beach in the south to Pavilion in the north. Lillooet, Pemberton, Whistler and Squamish are the four municipalities in the regional district. Its administrative offices are in the Village of Pemberton, although the district municipalities of Squamish, Whistler, and Lillooet are all larger population centres. The district covers 16,353.68 km² (6,314.19 sq mi) of land area.
The southern end of the regional district comprises the northern part of the traditional territory of the Squamish people, and the northern half constitutes the traditional homeland of the St'at'imc people.
Electoral Area A comprises the basin of the Bridge River valley above its confluence with the Yalakom River at Moha. The only towns in the area are Bralorne, Gold Bridge and Brexton. Other communities or localities include Gun Lake, Tyaughton Lake and Gun Creek Road.
Population as of 2006 Canadian Census: 207.
Electoral Area B comprises the basin of the Bridge River below its confluence with the Yalakom River at Moha, the valley of Seton and Anderson Lakes (excepting D'Arcy), and the rest of the upper portion of the SLRD surrounding Lillooet and adjoining parts of the Fraser Canyon. Communities include McGillivray Falls, Seton Portage, Shalalth, Texas Creek, Bridge River (meaning Moha and the lower Bridge River communities), West Pavilion, Pavilion and Fountain and Fountain Valley.