Rivière-des-Mille-Îles (electoral district)

For the river channel, see Rivière des Mille-Îles.

Rivière-des-Mille-Îles (French pronunciation: [ʁivjɛʁ de mil il]; formerly known as Saint-Eustache—Sainte-Thérèse) is a federal electoral district in Quebec, Canada, that has been represented in the House of Commons of Canada since 1997.

Rivière-des-Mille-Îles

Quebec electoral district
From the 2015 federal election to 2025 From the 2025 federal election Interactive map of riding boundaries
Federal electoral district
Legislature	House of Commons
MP	Linda Lapointe Liberal
District created	1996
First contested	1997
Last contested	2025
District webpage	profile, map
Demographics
Population (2011)[1]	102,816
Electors (2015)	80,957
Area (km²)[2]	117
Pop. density (per km²)	878.8
Census division(s)	Deux-Montagnes RCM, Thérèse-De Blainville RCM
Census subdivision(s)	Saint-Eustache (part), Boisbriand, Deux-Montagnes, Rosemère

Geography

This riding is located in the northern suburbs of Montreal, on the north shore of the Rivière des Mille-Îles. Since 2003, it has consisted of the cities of Deux-Montagnes, Saint-Eustache and Sainte-Marthe-sur-le-Lac in the Regional County Municipality of Deux-Montagnes; and the City of Boisbriand in the Regional County Municipality of Thérèse-De Blainville.

The neighbouring ridings are Argenteuil—Papineau—Mirabel, Marc-Aurèle-Fortin, Laval, Laval—Les Îles, and Pierrefonds—Dollard.

Demographics

According to the 2021 Canadian census^[3]

Ethnic groups: 87.3% White, 3.4% Black, 2.8% Arab, 1.8% Latin American, 1.7% Indigenous, 1.0% Southeast Asian
Languages: 77.6% French, 6.8% English, 2.0% Arabic, 1.9% Yiddish, 1.8% Spanish
Religions: 65.3% Christian (54.8% Catholic, 2.3% Christian Orthodox, 8.2% Other), 3.6% Muslim, 2.7% Jewish, 27.4% None
Median income: $44,000 (2020)
Average income: $53,650 (2020)

History

It was created in 1996 as "Saint-Eustache—Sainte-Thérèse" riding from parts of Blainville—Deux-Montagnes riding.

It was renamed "Rivière-des-Mille-Îles" in 1998.

This riding lost territory to Mirabel and gained territory from Marc-Aurèle-Fortin during the 2012 electoral redistribution.

Members of Parliament

Parliament	Years	Member		Party
Saint-Eustache—Sainte-Thérèse Riding created from Blainville—Deux-Montagnes
36th	1997–2000		Gilles Perron	Bloc Québécois
Rivière-des-Mille-Îles
37th	2000–2004		Gilles Perron	Bloc Québécois
38th	2004–2006
39th	2006–2008
40th	2008–2011		Luc Desnoyers
41st	2011–2015		Laurin Liu	New Democratic
42nd	2015–2019		Linda Lapointe	Liberal
43rd	2019–2021		Luc Desilets	Bloc Québécois
44th	2021–2025
45th	2025–present		Linda Lapointe	Liberal

Election results

Graph of election results in Rivière-des-Mille-Îles (minor parties that never got 2% of the vote or didn't run consistently are omitted)

Rivière-des-Mille-Îles

v t e 2025 Canadian federal election
** Preliminary results — Not yet official **
Party	Candidate	Votes	%	±%	Expenditures
	Liberal	Linda Lapointe	27,218	45.53	+10.17
	Bloc Québécois	Luc Desilets	19,669	32.90	–7.64
	Conservative	Elia Lopez	10,398	17.39	+7.14
	New Democratic	Joseph Hakizimana	1,270	2.12	–5.08
	Green	Alec Ware	734	1.23	–0.59
	People's	David Santamaria Quiceno	306	0.51	–2.24
	Independent	Michel Genois	184	0.31	N/A
Total valid votes/expense limit
Total rejected ballots
Turnout			59,779	70.77
Eligible voters			84,474
	Liberal notional gain from Bloc Québécois		Swing		+8.91
Source: Elections Canada[4][5]

2021 federal election redistributed results[6]
Party		Vote	%
	Bloc Québécois	21,522	40.54
	Liberal	18,770	35.36
	Conservative	5,441	10.25
	New Democratic	3,825	7.20
	People's	1,458	2.75
	Green	966	1.82
	Others	1,108	2.09

v t e 2021 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Bloc Québécois	Luc Desilets	21,645	40.6	±0.0	$17,235.31
	Liberal	Linda Lapointe	18,835	35.3	-0.8	$63,876.62
	Conservative	Marc Duffy-Vincelette	5,479	10.3	+2.2	$9,189.50
	New Democratic	Joseph Hakizimana	3,852	7.2	-1.4	$24.86
	People's	Hans Roker Jr.	1,468	2.8	+1.3	$0.00
	Green	Alex Ware	972	1.8	-3.4	$0.00
	Free	Valérie Beauséjour	847	1.6	N/A	$0.00
	Patriote	Michael Dionne	149	0.3	N/A	$0.00
	Indépendance du Québec	Julius Bute	119	0.2	N/A	$0.00
Total valid votes/Expense limit			53,366	98.1	–	$113,035.56
Total rejected ballots			1,061	1.9
Turnout			54,427	65.4
Eligible voters			83,171
	Bloc Québécois hold		Swing		+0.4
Source: Elections Canada[7]

v t e 2019 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Bloc Québécois	Luc Desilets	23,629	40.61	+15.19	$9,764.52
	Liberal	Linda Lapointe	21,009	36.11	+3.74	none listed
	New Democratic	Joseph Hakizimana	5,002	8.60	-20.88	$19,322.13
	Conservative	Maikel Mikhael	4,684	8.05	-2.46	$20,256.23
	Green	Ceylan Borgers	3,015	5.18	+3.22	none listed
	People's	Hans Roker Jr.	845	1.45	–	$1,000.00
Total valid votes/expense limit			58,184	98.16
Total rejected ballots			1,090	1.84	+0.27
Turnout			59,274	71.96	-0.38
Eligible voters			82,372
	Bloc Québécois gain from Liberal		Swing		+5.72
Source: Elections Canada[8][9]

2015 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Liberal	Linda Lapointe	18,787	32.37	+21.27	$24,179.08
	New Democratic	Laurin Liu	17,111	29.48	-19.64	$54,641.76
	Bloc Québécois	Félix Pinel	14,755	25.42	-1.70	$40,335.73
	Conservative	Érick Gauthier	6,099	10.51	+0.21	$31,082.28
	Green	Alec Ware	1,136	1.96	-0.41	$665.90
	Independent	Luis Quinteros	158	0.27	n/a	–
Total valid votes/Expense limit			58,046	98.43		$217,630.75
Total rejected ballots			927	1.57	–
Turnout			58,973	72.33	–
Eligible voters			81,528
	Liberal gain from New Democratic		Swing		+20.45
Source: Elections Canada[10][11]

2011 federal election redistributed results[12]
Party		Vote	%
	New Democratic	25,758	49.1
	Bloc Québécois	14,223	27.1
	Liberal	5,819	11.1
	Conservative	5,399	10.3
	Green	1,242	2.4

2011 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	New Democratic	Laurin Liu	25,639	49.2	+35.9
	Bloc Québécois	Luc Desnoyers	14,873	28.5	-16.8
	Liberal	Denis Joannette	5,300	10.2	-7.2
	Conservative	Lucie Leblanc	5,057	9.7	-9.8
	Green	Gilles Bisson	1,229	2.4	-1.8
Total valid votes/Expense limit			52,098	100.0
Total rejected ballots			973	1.8	–
Turnout			53,071	66.8	–
Eligible voters			79,428	–

2008 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Bloc Québécois	Luc Desnoyers	23,216	45.7	-8.2	$52,131
	Conservative	Claude Carignan	9,911	19.5	-1.4	$81,773
	Liberal	Denis Joannette	8,823	17.4	+4.6	$15,359
	New Democratic	Normand Beaudet	6,741	13.3	+6.3	$1,453
	Green	Marie Martine Bédard	2,134	4.2	-1.2	$3,053
Total valid votes/Expense limit			50,825	100.0	$83,475

2006 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Bloc Québécois	Gilles Perron	26,272	53.9	-7.5	$28,133
	Conservative	Érick Gauthier	10,173	20.9	+14.2	$5,917
	Liberal	Robert Frégeau	6,239	12.8	-11.4	$30,097
	New Democratic	Francis Chartrand	3,418	7.0	+3.6	$1,522
	Green	Marie Martine Bédard	2,643	5.4	+1.1	$1,860
Total valid votes/Expense limit			48,745	100.0	$76,468

2004 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Bloc Québécois	Gilles Perron	27,993	61.4	+12.0	$36,071
	Liberal	Yolaine Savignac	11,025	24.2	-10.2	$36,430
	Conservative	Érick Gauthier	3,064	6.7	-5.6	$6,653
	Green	Marie Martine Bédard	1,961	4.3	+1.8	$1,319
	New Democratic	Nicolas Du Cap	1,559	3.4	+2.0	$411
Total valid votes/Expense limit			45,602	100.0	$74,324

Note: Conservative vote is compared to the total of the Canadian Alliance vote and Progressive Conservative vote in 2000 election.

2000 Canadian federal election
Party	Candidate	Votes	%	±%
	Bloc Québécois	Gilles Perron	26,508	49.4	+3.0
	Liberal	Robert Fragasso	18,456	34.4	+5.1
	Alliance	François Desrochers	3,677	6.9
	Progressive Conservative	Jonathan Paquette	2,935	5.5	-17.1
	Green	Eric Squire	1,329	2.5
	New Democratic	Stéphane Thinel	739	1.4	-0.3
Total valid votes			53,644	100.0

Saint-Eustache—Sainte-Thérèse

1997 Canadian federal election
Party	Candidate	Votes	%
	Bloc Québécois	Gilles Perron	25,807	46.5
	Liberal	Yolaine Savignac	16,280	29.3
	Progressive Conservative	Jean Blanchard	12,522	22.5
	New Democratic	Valérie Kinslow	947	1.7
Total valid votes			55,556	100.0

See also

• List of Canadian electoral districts
• Historical federal electoral districts of Canada