La Vallée-du-Richelieu Regional County Municipality

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La Vallée-du-Richelieu ({{#invoke:IPA|main}}, The Valley of the Richelieu) is a regional county municipality in the Montérégie region in southwestern Quebec, Canada. Its seat is McMasterville.

It surrounds the Richelieu River as the river flows north from Lake Champlain in the United States to the Saint Lawrence River northeast of Montreal at Sorel-Tracy, Quebec. Dramatically different from the mountainous terrain to the south, the river valley is a vast plain that has been developed with extensive farmlands.

In the 21st century, the Richelieu River is very popular for both U.S. and Canadian recreational boaters, providing a connection that can bring boaters all the way from the outlet of the Saint Lawrence River to New York Harbor. A number of old fortifications exist dating back to the 17th century; they were built by the French in an effort to try to prevent the Iroquois from using the river as a way to attack the French settlers in the area. Fort Richelieu is at the mouth of the Richelieu River. Fort St. Louis (now Fort Chambly) at Chambly, Fort Sainte-Thérèse, and Fort Saint-Jean at Saint-Jean-sur-Richelieu, are on the way. Fort St. Anne Isle La Motte, Vermont in Lake Champlain is near the river's source. The region is informally known as la Vallée-des-Forts.

Subdivisions

There are 13 subdivisions within the RCM:<ref name="mamrot"/>

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Cities & Towns (7)

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Municipalities (6)

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Former municipalities

Saint-Bruno-de-Montarville (now part of the Urban agglomeration of Longueuil)

Demographics

Population

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Language

Canada Census Mother Tongue - La Vallée-du-Richelieu Regional County Municipality, Quebec<ref name="scpast"/>
Census	Total	French {{safesubst:#invoke:Check for unknown parameters\|check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}			English {{safesubst:#invoke:Check for unknown parameters\|check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}			French & English {{safesubst:#invoke:Check for unknown parameters\|check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}			Other {{safesubst:#invoke:Check for unknown parameters\|check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}
Year	Responses	Count	Trend	Pop %	Count	Trend	Pop %	Count	Trend	Pop %	Count	Trend	Pop %
check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}	check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}	117,755	Template:Increase 2.84%	89.34%	6,010	Template:Increase 50.6%	4.56%	1,965	Template:Increase 19.5%	1.49%	6,010	Template:Increase 50.8%	4.56%
check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}	check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}	114,405	Template:Increase 5.7%	92.6%	3,990	Template:Decrease 1.7%	3.2%	1105	Template:Increase 77.82%	0.80%	3985	Template:Increase 61.0%	2.14%
check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}	check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}	108,230	Template:Increase 9.5%	93.55%	4,060	Template:Increase 0.6%	3.51%	925	Template:Increase 55.5%	0.80%	2,475	Template:Increase 4.4%	2.14%
check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}	check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}	98,870	Template:Decrease 8.6%	93.39%	4,035	Template:Decrease 41.9%	3.81%	595	Template:Decrease 43.3%	0.56%	2,370	Template:Decrease 2.1%	2.24%
check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}	check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}	108,215	Template:Increase 5.8%	91.22%	6,950	Template:Decrease 2.7%	5.86%	1,050	Template:Increase 8.8%	0.88%	2,420	Template:Decrease 3.2%	2.04%
check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}	check\|unknown=\|preview=Page using Template:Center with unknown parameter "_VALUE_"\|ignoreblank=y\| 1 \| style }}	102,310	n/a	90.60%	7,145	n/a	6.33%	965	n/a	0.85%	2,500	n/a	2.21%