|— Administrative region —|
Municipalities (RCM) and Equivalent
|• Total||11,851 km2 (4,576 sq mi)|
|• Land||11,131.32 km2 (4,297.83 sq mi)|
|• Density||129.6/km2 (336/sq mi)|
|Time zone||EST (UTC-5)|
|• Summer (DST)||EDT (UTC-4)|
|Area code||450, 579|
Montérégie (French pronunciation: [mɔ̃teʁeʒi]) is an administrative region in southwest Québec. It includes the cities of Boucherville, Brossard, Granby, Longueuil, Salaberry-de-Valleyfield, Saint-Jean-sur-Richelieu, Saint-Hyacinthe, Sorel-Tracy, and Vaudreuil-Dorion.
The region has a population of 1,442,433 (2011) on 11,131.32 square kilometres (4,297.83 sq mi) of land, giving a population density of 129.6 hab/km² (336/sq mi). This is the largest population of any of Québec's regions after Montréal.
Montérégie was populated by the Iroquois when the Europeans first came here in the beginning of the 17th century. Samuel de Champlain built several forts to protect the colonists against the Iroquois and against the British. Some of the battles which decided the destiny of Canada took place in Montérégie.
Montérégie is also well known for its vineyards, orchards, spectacular panoramas, delicious products, and, of course, for the Monteregian Mountains or Hills, which gave this land its name.
The region is both urban (second in terms of population) and rural. The Montérégie's economy is based on agriculture and the production of goods and services. Tourism also makes up a significant portion of the economy.
Originally, the administrative territory of the Montérégie parishes were taken from the territory of the canonical Diocese of Saint-Jean-Longueuil.
The Montérégie comprises three administrative subregions, each consisting of its own Regional County Municipalities (RCM) or Equivalent Territories. The territorial administration of the region is ensured by three Regional Conferences of Elected Officers (French: Conférences régionales des élus) (CRE) separate and independent in their territory: Longueuil, Montérégie-Est (eastern RCMs) and Vallée-du-Haut-Saint-Laurent (western RCMs). Each sub-region is organized in the same way as other administrative regions of Quebec.
Regional County Municipalities 
There are 14 Regional County Municipalities in Montérégie.
Montérégie Est 
There are 9 RCMs in Montérégie Est. Its seat is McMasterville, and the president is Arthur Fauteux. Its territory occupies 7,125 square kilometres (2,751 sq mi) and there are 606,444 inhabitants (85.1/km2).
- La Haute-Yamaska
- La Vallée-du-Richelieu
- Le Haut-Richelieu
- Les Maskoutains
- Marguerite-D'Youville (formerly Lajammerais until January 2011)
- Pierre-De Saurel (formerly La Bas-Richelieu until January 2009)
There are 5 RCMs in Vallée-du-Haut-Saint-Laurent. Its seat is Salaberry-de-Valleyfield, and its president is Yves Daoust. Its territory occupies 3,714 square kilometres (1,434 sq mi) and there are 401,133 inhabitants (108/km2).
- Le Haut-Saint-Laurent
- Les Jardins-de-Napierville
Equivalent territory 
- Agglomeration of Longueuil
Native Reserves not part of a Regional County Municipality 
Major communities 
- "Montérégie, Quebec (Code 2435) and Quebec (Code 24) (table). Census Profile.". Canada 2011 Census. Ottawa, Ontario: Statistics Canada. 2012-05-29. Retrieved 30 June 2012.
|Wikimedia Commons has media related to: Montérégie|
- Portail régional de la Montérégie Official website (French)
- Site officiel de la CRÉ de Longueuil (French)
- Site officiel de la CRÉ de la Montérégie-Est (French)
- Site officiel de la CRÉ de la Vallée-du-Haut-Saint-Laurent (French)
- Agence de la santé et des services sociaux de la Montérégie (French)