Mission is a district municipality in the Lower Mainland of the province of British Columbia, Canada. It was incorporated as a district municipality in 1892, growing to include additional villages and rural areas over the years, adding the original Town of Mission City, long an independent core of the region, in 1969.
It is situated on the north bank of the Fraser River, backing onto mountains and lakes overlooking the Central Fraser Valley, 80 km (50 mi) east-southeast of Vancouver, British Columbia. Unlike the other Fraser Valley municipalities, Mission is mostly forested upland with only small floodplains lining the shore of the Fraser River. Some benches of farmland rise in succession northwards above the core developed area of the city. Mission was once the heart of the berry industry in the Fraser Valley, with "Home of the Big Red Strawberry" as Mission's slogan in the 1930s and into the 1940s. The more southerly portion of the municipality is bounded on the west by the lower reaches of the Stave River, which consists mostly of the lakewaters of two hydroelectric reservoirs, Stave Lake and Hayward Lake. Although the vast majority of the population of Mission lives well to the east of the Stave, over 50% of the northern land area of the municipality is west and north of that river; its extreme northwest corner is on the far side of upper Alouette Lake.