Mont-Saint-Bruno—L'Acadie

Mont-Saint-Bruno—L'Acadie

Quebec electoral district

Interactive map of riding boundaries from the 2025 federal election

Federal electoral district

Legislature

House of Commons

Bienvenu-Olivier Ntumba
Liberal

District created

First contested

Last contested

District webpage

Demographics

Population (2016)

97,811

Electors (2019)

77,097

Area (km²)

158

Pop. density (per km²)

619.1

Census division(s)

Longueuil, Marguerite-D'Youville, La Vallée-du-Richelieu

Census subdivision(s)

Longueuil (part), Sainte-Julie, Saint-Bruno-de-Montarville, Saint-Basile-le-Grand, Carignan (part)

Mont-Saint-Bruno—L'Acadie (formerly Montarville, French pronunciation: [mɔ̃taʁvil]) is a federal electoral district in the Montérégie region of Quebec, Canada, that has been represented in the House of Commons of Canada since 2015.

Montarville was created by the 2012 federal electoral boundaries redistribution and was legally defined in the 2013 representation order. It came into effect upon the call of the 2025 Canadian federal election. It was created out of parts of the electoral districts of Saint-Bruno—Saint-Hubert, Verchères—Les Patriotes and Chambly—Borduas.

The riding was renamed Mont-Saint-Bruno—L'Acadie by the 2023 representation order for Quebec. It gained Carignan from Beloeil—Chambly in the process.

Profile

Similarly to other South Shore ridings, Montarville has recently become more of a competition between the Bloc Québécois and the Liberals despite an NDP win in 2011 and strong showing in 2015. The wealthier city of Saint-Bruno-de-Montarville tends to be more Liberal, while the Bloc performs better in Longueuil and Sainte-Julie.

Demographics

According to the 2021 Canadian census, 2023 representation order

Racial groups: 88.0% White, 3.1% Black, 2.2% Latin American, 2.0% Arab, 1.1% Indigenous, 1.1% Chinese
Languages: 86.3% French, 6.5% English, 2.1% Spanish, 1.3% Arabic
Religions: 65.7% Christian (56.4% Catholic, 1.3% Christian Orthodox, 8.0% Other), 3.4% Muslim, 30.3% None
Median income: $51,200 (2020)
Average income: $64,300 (2020)

Members of Parliament

This riding has elected the following members of Parliament:

Parliament	Years	Member		Party
Montarville Riding created from Chambly—Borduas, Saint-Bruno—Saint-Hubert and Verchères—Les Patriotes
42nd	2015–2019		Michel Picard	Liberal
43rd	2019–2021		Stéphane Bergeron	Bloc Québécois
44th	2021–2025		Stéphane Bergeron	Bloc Québécois
Mont-Saint-Bruno—L'Acadie
45th	2025–present		Bienvenu-Olivier Ntumba	Liberal

Election results

Mont-Saint-Bruno—L'Acadie

v t e 2025 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Liberal	Bienvenu-Olivier Ntumba	32,149	47.10	+12.99	$42,816.65
	Bloc Québécois	Noémie Rouillard	23,947	35.09	–10.40	$44,328.48
	Conservative	Nicolas Godin	9,335	13.68	+3.98	$2,081.73
	New Democratic	Mirabelle Leins	1,590	2.33	–5.99	$0.00
	Green	Maria Korpijaakko	833	1.22	+1.07	$0.00
	People's	Patrick Rochon	397	0.58	–1.53	$0.00
Total valid votes/expenses limit			68,251	98.74	+0.46	$134,358.68
Total rejected ballots			871	1.26	–0.46
Turnout			68,251	77.80	+4.06
Eligible voters			88,845
	Liberal notional gain from Bloc Québécois		Swing		11.69
Source: Elections Canada

2021 federal election redistributed results
Party		Vote	%
	Bloc Québécois	28,528	45.49
	Liberal	21,397	34.12
	Conservative	6,080	9.69
	New Democratic	5,216	8.32
	People's	1,322	2.11
	Green	95	0.15
	Free	51	0.08
	Marijuana	14	0.02
	Rhinoceros	10	0.02
	Indépendance du Québec	6	0.01
Total valid votes		62,719	98.28
Rejected ballots		1,110	1.72
Registered voters/ estimated turnout		86,542	73.74

Montarville

v t e 2021 Canadian federal election: Montarville
Party	Candidate	Votes	%	±%	Expenditures
	Bloc Québécois	Stéphane Bergeron	26,011	45.3	+2.5	$26,513.08
	Liberal	Marie-Ève Pelchat	19,974	34.8	-0.8	$56,659.78
	Conservative	Julie Sauvageau	5,460	9.5	+2.5	$4,343.53
	New Democratic	Djaouida Sellah	4,809	8.4	±0.0	$596.30
	People's	Natasha Hynes	1,218	2.1	+1.3	$1,269.78
Total valid votes/expense limit			57,472	98.2	–	$110,040.39
Total rejected ballots			1,033	1.8
Turnout			58,505	74.7
Eligible voters			78,273
	Bloc Québécois hold		Swing		+1.7
Source: Elections Canada

v t e 2019 Canadian federal election: Montarville
Party	Candidate	Votes	%	±%	Expenditures
	Bloc Québécois	Stéphane Bergeron	25,366	42.8	+14.38	$22,609.89
	Liberal	Michel Picard	21,061	35.6	+3.06	$55,495.41
	New Democratic	Djaouida Sellah	4,984	8.4	-16.28	$1,715.58
	Conservative	Julie Sauvageau	4,138	7.0	-3.85	$11,784.17
	Green	Jean-Charles Pelland	2,967	5.0	+2.6	$3,869.64
	People's	Julie Lavallée	501	0.8	–	none listed
	Rhinoceros	Thomas Thibault-Vincent	211	0.4	–	$0.00
Total valid votes/expense limit			59,228	100
Total rejected ballots			742
Turnout			59,970	77.8%
Eligible voters			77,097
	Bloc Québécois gain from Liberal		Swing		+5.66
Source: Elections Canada

2015 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Liberal	Michel Picard	18,848	32.54	+20.03	–
	Bloc Québécois	Catherine Fournier	16,460	28.42	-0.66	–
	New Democratic	Djaouida Sellah	14,296	24.68	-19.85	–
	Conservative	Stéphane Duranleau	6,284	10.85	+1.25	–
	Green	Olivier Adam	1,388	2.40	-0.05	–
	Libertarian	Claude Leclair	641	1.11	–	–
Total valid votes/Expense limit			57,917	100.00		$207,758.92
Total rejected ballots			881	1.50	–
Turnout			58,798	77.86	–
Eligible voters			75,521
	Liberal gain from New Democratic		Swing		+19.94
Source: Elections Canada

2011 federal election redistributed results
Party		Vote	%
	New Democratic	23,227	44.53
	Bloc Québécois	15,166	29.08
	Liberal	6,524	12.51
	Conservative	5,007	9.60
	Green	1,278	2.45
	Independent	959	1.84

See also

References

1 2 Statistics Canada: 2016
↑ Timeline for the Redistribution of Federal Electoral Districts
↑ Final Report – Quebec
↑ "Report of the Federal Electoral Boundaries Commission for the Province of Quebec" (PDF). Federal Electoral Boundaries Commission for the Province of Quebec. September 22, 2023. p. 114.
↑ Government of Canada, Statistics Canada (August 2, 2024). "Profile table, Census Profile, 2021 Census of Population - Mont-Saint-Bruno--L'Acadie [Federal electoral district (2023 Representation Order)], Quebec". www12.statcan.gc.ca. Retrieved November 14, 2025.
↑ "Voter information service". Elections Canada. Retrieved April 12, 2025.
↑ "Official Voting Results". Elections Canada. Retrieved November 14, 2025.
↑ "Transposition of Votes from the 44th General Election to the 2023 Representation Orders". Elections Canada. Retrieved April 9, 2024.
↑ "List of confirmed candidates – September 20, 2021 Federal Election". Elections Canada. Retrieved September 2, 2021.
↑ "List of confirmed candidates". Elections Canada. Retrieved October 3, 2019.
↑ "Election Night Results". Elections Canada. Retrieved November 11, 2019.
↑ Elections Canada – Confirmed candidates for Montarville, 30 September 2015
↑ Elections Canada – Preliminary Election Expenses Limits for Candidates
↑ Pundits' Guide to Canadian Elections

v t e Federal ridings in Montérégie
Liberal	Brossard—Saint-Lambert Châteauguay—Les Jardins-de-Napierville La Prairie—Atateken Longueuil—Charles-LeMoyne—Greenfield Park Longueuil—Saint-Hubert Mont-Saint-Bruno—L'Acadie Vaudreuil
Bloc Québécois	Belœil—Chambly Pierre-Boucher—Les Patriotes—Verchères Saint-Jean Vallée-du-Haut-Saint-Laurent

Federal ridings in Quebec

Côte-Nord and Saguenay

The Eastern Townships

The Laurentides, Outaouais
and Northern Quebec

Montreal
(East, West, North) & Laval

Laval	Alfred-Pellan Laval—Les Îles Marc-Aurèle-Fortin Vimy
Ahuntsic-Cartierville Bourassa Dorval—Lachine—LaSalle Hochelaga Honoré-Mercier Lac-Saint-Louis LaSalle—Émard—Verdun Laurier—Sainte-Marie Mount Royal Notre-Dame-de-Grâce—Westmount Outremont Papineau Pierrefonds—Dollard La Pointe-de-l'Île Rosemont—La Petite-Patrie Saint-Laurent Saint-Léonard—Saint-Michel Ville-Marie–Le Sud-Ouest–Île-des-Sœurs

See also: Quebec provincial electoral districts

v t e Historical federal ridings in Quebec
Until 2025	Avignon—La Mitis—Matane—Matapédia Montmagny—L'Islet—Kamouraska—Rivière-du-Loup Rimouski-Neigette—Témiscouata—Les Basques Gaspésie–Les Îles-de-la-Madeleine
Until 2015	Ahuntsic Argenteuil—Papineau—Mirabel Beauharnois—Salaberry Bas-Richelieu—Nicolet—Bécancour Brossard—La Prairie Chambly—Borduas Châteauguay—Saint-Constant Gaspésie—Îles-de-la-Madeleine Haute-Gaspésie—La Mitis—Matane—Matapédia Jeanne-Le Ber Jonquière—Alma LaSalle—Émard Laval Lévis—Bellechasse Lotbinière—Chutes-de-la-Chaudière Longueuil—Pierre-Boucher Montmorency—Charlevoix—Haute-Côte-Nord Notre-Dame-de-Grâce—Lachine Roberval—Lac-Saint-Jean Saint-Bruno—Saint-Hubert Saint-Lambert Saint-Laurent—Cartierville Terrebonne—Blainville Vaudreuil-Soulanges Verchères—Les Patriotes Westmount—Ville-Marie
Until 2006	Argenteuil—Mirabel Beauport Charlesbourg Charlevoix—Montmorency Laurier Nunavik—Eeyou Portneuf Richelieu Rivière-du-Loup—Montmagny Roberval
Until 2004	Abitibi—Baie-James—Nunavik Anjou—Rivière-des-Prairies Argenteuil—Papineau—Mirabel Bas-Richelieu—Nicolet—Bécancour Beauport—Montmorency—Côte-de-Beaupré—Île-d'Orléans Bellechasse—Etchemins—Montmagny—L'Islet Berthier—Montcalm Bonaventure—Gaspé—Îles-de-la-Madeleine—Pabok Chambly Champlain Charlesbourg—Jacques-Cartier Charlevoix Châteauguay Frontenac—Mégantic Hochelaga—Maisonneuve Jonquière Kamouraska—Rivière-du-Loup—Témiscouata—Les Basques Lac-Saint-Jean—Saguenay Laurentides Laurier—Sainte-Marie Laval Centre Laval East Laval West Lévis-et-Chutes-de-la-Chaudière Longueuil Lotbinière—L'Érable Matapédia—Matane Mercier Papineau—Saint-Denis Pontiac—Gatineau—Labelle Québec East Rimouski—Neigette-et-la Mitis Rosemont—Petite-Patrie Saint-Maurice Témiscamingue Verdun—Saint-Henri—Saint-Paul—Pointe-Saint-Charles
Until 2000	Abitibi Beauport—Montmorency—Orléans Charlesbourg Chicoutimi Lac-Saint-Jean Lévis Lotbinière Richelieu Rimouski—Mitis Rosemont Saint-Eustache—Sainte-Thérèse Verchères Verdun—Saint-Henri
Until 1997	Argenteuil—Papineau Bellechasse Blainville—Deux-Montagnes Bonaventure—Îles-de-la-Madeleine Frontenac Gaspé Gatineau—La Lièvre Kamouraska—Rivière-du-Loup Lachine—Lac-Saint-Louis La Prairie Mégantic—Compton—Stanstead Notre-Dame-de-Grâce Papineau—Saint-Michel Richmond—Wolfe Rimouski—Témiscouata Saint-Denis Saint-Henri—Westmount Saint-Hubert Saint-Léonard Terrebonne Vaudreuil Verchères Verdun—Saint-Paul
Until 1993	Duvernay Langelier Laval Laval-des-Rapides Montmorency—Orléans Québec-Est Saint-Laurent
Until 1988	Berthier—Maskinongé—Lanaudière Dollard Gamelin Gatineau Labelle Lachine Lasalle Laurier Montreal—Mercier Montreal—Sainte-Marie Notre-Dame-de-Grâce—Lachine East Papineau Saint-Jacques Saint-Léonard—Anjou Saint-Michel—Ahuntsic
Until 1984	Argenteuil Berthier—Maskinongé Hull Mercier Missisquoi Notre-Dame-de-Grâce Rimouski Sainte-Marie Saint-Michel
Until 1980	Laprairie Montmorency Richmond Saint-Hyacinthe Verdun
Until 1979	Ahuntsic Argenteuil—Deux-Montagnes Berthier Brome—Missisquoi Compton Hochelaga Kamouraska Lachine—Lakeshore Lafontaine Lapointe Lasalle—Émard—Côte Saint-Paul Laval Maisonneuve—Rosemont Matane Montreal—Bourassa Pontiac Rivière-du-Loup—Témiscouata Sainte-Marie Saint-Henri Trois-Rivières Métropolitain Villeneuve Westmount
Until 1974	Lachine Lasalle
Until 1972	Argenteuil Beauharnois Bonaventure Bourassa Maisonneuve Missisquoi Témiscouata Trois-Rivières
Until 1968	Argenteuil—Deux-Montagnes Beauharnois—Salaberry Berthier—Maskinongé—Delanaudière Brome—Missisquoi Cartier Chambly—Rouville Chapleau Châteauguay—Huntingdon—Laprairie Compton—Frontenac Dorchester Drummond—Arthabaska Îles-de-la-Madeleine Jacques-Cartier—Lasalle Joliette—L'Assomption—Montcalm Matapédia—Matane Maisonneuve—Rosemont Mégantic Montmagny—L'Islet Nicolet—Yamaska Outremont—Saint-Jean Pontiac–Témiscamingue Quebec East Québec—Montmorency Quebec South Quebec West Richelieu—Verchères Richmond—Wolfe Rivière-du-Loup—Témiscouata Saguenay St. Ann Saint-Antoine—Westmount Saint-Hyacinthe—Bagot Saint-Jean—Iberville—Napierville St. Lawrence—St. George Saint-Maurice—Laflèche Stanstead Vaudreuil—Soulanges
Until 1962	Témiscouata
Until 1953	Beauharnois Berthier—Maskinongé Jacques Cartier St. Antoine—Westmount St-Denis St-Henri St. James St. Mary Verdun—La Salle
Until 1949	Argenteuil Beauharnois—Laprairie Charlevoix—Saguenay Châteauguay—Huntingdon Compton Lake St-John—Roberval Laval—Two Mountains Mégantic—Frontenac Outremont Pontiac Quebec West and South St. Denis St. Henry St. Hyacinthe—Bagot St. Johns—Iberville—Napierville St-Maurice—Laflèche Three Rivers Verdun Wright
Until 1935	Bagot Beauharnois Chambly—Verchères Joliette Lake St. John Laprairie—Napierville L'Assomption—Montcalm Laurier—Outremont L'Islet Maisonneuve Matane Mégantic Montmagny Nicolet Quebec West Richelieu St. Antoine St. Henri St. Hyacinthe—Rouville St. Johns—Iberville Three Rivers—St. Maurice Yamaska
Until 1925	Berthier Brome Charlevoix—Montmorency Chicoutimi—Saguenay George-Étienne Cartier Maskinongé Missisquoi Quebec County Town of Sherbrooke Three Rivers and St. Maurice Westmount—St. Henri
Until 1917	Charlevoix Châteauguay Huntingdon L'Assomption Laval Montcalm Montmorency Quebec-Centre Rouville St. Anne St. Hyacinthe St. Lawrence Soulanges Two Mountains Vaudreuil
Before 1900	Chambly Iberville Laprairie Montreal Centre Montreal East Montreal West Napierville County of Ottawa St. John's Saint Maurice Three Rivers Verchères

45°35′30″N 73°19′30″W / 45.59167°N 73.32500°W / 45.59167; -73.32500

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