Asbestos is a Canadian Town located in the Estrie region of southeastern Quebec on the Nicolet River. Asbestos is the seat of Les Sources Regional County Municipality, formerly known as the Asbestos Regional County Municipality. The town covers an area of 29.67 square kilometres (11.46 sq mi), including land acquired due to the merger of the City of Asbestos with the Municipality of Trois-Lacs on Dec 8, 1999.At the 2011 census, 7,096 people resided in Asbestos.