Montmagny Regional County Municipality

Montmagny
Coordinates: 46°50′N 70°24′W / 46.833°N 70.400°W / 46.833; -70.400
Country Canada
Province Quebec
RegionChaudière-Appalaches
EffectiveJanuary 1, 1982
County seatMontmagny
Government
 • TypePrefecture
 • PrefectFrédéric Jean
Area
 • Total
1,726.5 km2 (666.6 sq mi)
 • Land1,695.09 km2 (654.48 sq mi)
Population
 (2021)
 • Total
22,481
 • Density13.3/km2 (34/sq mi)
 • Change (2016-21)
1.0%
 • Dwellings
12,256
Time zoneUTC−5 (EST)
 • Summer (DST)UTC−4 (EDT)
Area codes418 and 581
Websitewww.montmagny.com

Montmagny (French pronunciation: [mɔ̃maɲi] ) is a regional county municipality (RCM) in the Chaudière-Appalaches region of Quebec, Canada. Montmagny is the seat. Its neighbouring RCMs are Bellechasse, Les Etchemins, and L'Islet.

This area was named after Charles de Montmagny, a governor of New France.