Logging and some agriculture began in the area in the early 19th century, but settlement followed in the 1870s as part of
Antoine Labelle's push to colonize the
Laurentians. Labelle founded the Immaculate Conception Mission (later shortened to La Conception), named in line with the practice of that time to name parishes after doctrines related to Mary or Jesus. By 1880, there was a post office and railway station. On January 1, 1882, the place was incorporated as the Township Municipality of Clyde, named after the
River Clyde in Scotland. In 1893, the railway was completed, giving the place a development boost since the only way to reach La Conception was via the Rouge River. It led to the expansion of sawmills and tourism in the area. In 1946, the township was renamed to La Conception. In 1948, the highway, Route 11 (now
Route 117), reached reached La Conception. ==Demographics==