Historically the territory of the indigenous Innu, the first European, Jesuit Jean de Quen, visited the place in 1647, followed by Charles Albanel in 1671, during the meeting of twenty Indian nations. Five years later in 1676, a trading post and mission were established there. But real colonization only began after the proclamation of Métabetchouan Township in 1857, and the first settlers arrived from the South Shore and Bagotville in 1861. That same year, Stanislas Drapeau reported the presence of 154 people including 36 "savages" in Métabetchouan Township. The place was first called Saint-Jérôme, in honour of Jérôme Demers, vicar general of the Bishop of Quebec. In 1870, it was nearly destroyed by a great fire, that only spared some twenty houses. In 1872, the Parish Municipality of Saint-Jérôme was formed, and in 1898, the village itself separated and was incorporated as the Village Municipality of Saint-Jérôme. As for Lac-à-la-Croix, the first settlers came in 1864, and by 1910, it had some 800 inhabitants. Its parish was established in March 1911 and in December that same year, it was incorporated as the Parish Municipality of Sainte-Croix. In 1953, the village itself separated and formed the Village Municipality of Sainte-Croix, later renamed to Lac-à-la-Croix. It was named after the adjacent lake where, according to popular thought, a cross that was planted on its shores by François de Crespieul in the 17th century. But this has been proven untrue since missionaries never went through this place. The lake was probably named for having a resemblance to a cross. In 1975, the Parish and Village Municipalities of Saint-Jérôme merged to form the new City of Métabetchouan, named after the township and the nearby Métabetchouane River. The following year, the Parish Municipality of Sainte-Croix and the Village Municipality of Lac-à-la-Croix also merged to form the Municipality of Lac-à-la-Croix. And on January 6, 1999, the City of Métabetchouan and the Municipality of Lac-à-la-Croix amalgamated to form the new city of Métabetchouan–Lac-à-la-Croix.
Demographics
Population trend:
Population in 2011: 4097
Population in 2006: 4084
Population in 2001: 4198
Population total in 1996: 4487
* Métabetchouan : 3474
* Lac-à-la-Croix : 1013
Population in 1991:
* Métabetchouan : 3379
* Lac-à-la-Croix : 971
Private dwellings occupied by usual residents: 1,690 Mother tongue: