Champlain Regional County Municipality

Champlain was a former regional county municipality and census division in the Canadian province of Quebec. It ceased to exist when it amalgamated into the expanded city of Longueuil on January 1, 2002.
It was the smallest in area and most populous regional county municipality.

Subdivisions

Champlain RCM consisted of:

the City of Brossard
the City of Greenfield Park
the City of LeMoyne
the City of Longueuil
the City of Saint-Hubert
the City of Saint-Lambert

Dissolution

On January 1, 2002, all of the above, plus Boucherville and Saint-Bruno-de-Montarville, amalgamated into the expanded city of Longueuil. On January 1, 2006, however, Brossard, Boucherville, Saint-Bruno-de-Montarville, and Saint-Lambert demerged and became independent again; however, they remain part of the urban agglomeration of Longueuil.