Saint-Mathias-sur-Richelieu (French pronunciation: [sɛ̃ matjas syʁ ʁiʃ(ə)ljø], lit. 'Saint Mathias on Richelieu') is a municipality in the Canadian province of Quebec. It is located within the Rouville Regional County Municipality in the Montérégie region on the Richelieu River. The population as of the Canada 2021 Census was 4,544.

Key Information

Saint-Mathias-sur-Richelieu
Municipality
Saint-Mathias-sur-Richelieu's cemetery
Location within Rouville RCM
Saint-Mathias-sur-Richelieu Location in southern Quebec
Coordinates: 45°28′N 73°16′W / 45.467°N 73.267°W / 45.467; -73.267[1]
Country	Canada
Province	Quebec
Region	Montérégie
RCM	Rouville
Constituted	July 1, 1855
Government [2][3]
• Mayor	Sylvain Casavant
• Federal riding	Beloeil—Chambly
• Prov. riding	Chambly
Area [2][4]
• Total	50.10 km2 (19.34 sq mi)
• Land	47.02 km2 (18.15 sq mi)
Population  (2021)[4]
• Total	4,544
• Density	96.6/km2 (250/sq mi)
• Pop 2016-2021	0.3%
• Dwellings	2,022
Time zone	UTC−5 (EST)
• Summer (DST)	UTC−4 (EDT)
Postal code(s)	J3L 6Z5
Area codes	450 and 579
Highways A-10	R-112 R-133
Website	www.saint-mathias -sur-richelieu.org
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Population [edit] Population trend:[5] Census Population Change (%) 2021 4,544 0.3% 2016 4,531 1.9% 2011 4,618 2.5% 2006 4,506 8.6% 2001 4,149 3.4% 1996 4,014 13.0% 1991 3,553 15.9% 1986 3,065 4.6% 1981 2,929 49.0% 1976 1,966 18.3% 1971 1,662 14.0% 1966 1,458 38.2% 1961 1,055 4.2% 1956 1,012 0.9% 1951 1,003 46.2% 1941 686 3.9% 1931 660 10.2% 1921 735 1.8% 1911 722 9.9% 1901 657 9.4% 1891 725 15.0% 1881 853 9.2% 1871 939 48.7% 1861 1,829 N/A

Language [edit] Mother tongue language (2021)[6] Language Population Pct (%) French only 4,285 94.5% English only 100 2.2% Both English and French 45 1.0% Other languages 90 2.0%

Wikimedia Commons has media related to Saint-Mathias-sur-Richelieu.

• Municipalité de Saint-Mathias-sur-Richelieu