Leeds—Grenville—Thousand Islands—Rideau Lakes

Not to be confused with Leeds—Grenville—Thousand Islands and Rideau Lakes (provincial electoral district).

Leeds—Grenville—Thousand Islands—Rideau Lakes is a federal electoral district in Ontario, Canada, that has been represented in the House of Commons since 1979. Prior to the 2025 election, the riding was known as Leeds—Grenville—Thousand Islands and Rideau Lakes, and prior to the 2015 election as Leeds—Grenville.^[2]

Leeds—Grenville—Thousand Islands—Rideau Lakes

Ontario electoral district
Interactive map of riding boundaries (previously named Leeds—Grenville—Thousand Islands and Rideau Lakes) from the 2015 federal election
Federal electoral district
Legislature	House of Commons
MP	Michael Barrett Conservative
District created	1976
First contested	1979
Last contested	2021
District webpage	profile, map
Demographics
Population (2016)[1]	100,546
Electors (2015)	78,225
Area (km²)[1]	3,382.89
Pop. density (per km²)	29.7
Census division	Leeds and Grenville
Census subdivision(s)	Brockville, North Grenville, Rideau Lakes, Leeds and the Thousand Islands, Elizabethtown-Kitley, Edwardsburgh/Cardinal, Augusta, Gananoque, Prescott, Merrickville–Wolford

The 2018 Leeds—Grenville—Thousand Islands and Rideau Lakes federal by-election was won by Michael Barrett. Michael has represented this riding since December 3, 2018.^[3]

Geography

The riding consists of the entirety of the United Counties of Leeds and Grenville.

Demographics

According to the 2021 Canadian census^[4]

Ethnic groups: 91.3% White, 5.6% Indigenous
Languages: 91.7% English, 3.2% French
Religions: 60.6% Christian (22.2% Catholic, 11.5% United Church, 9.9% Anglican, 2.3% Presbyterian, 1.3% Methodist, 1.3% Pentecostal, 12.1% other), 37.7% none
Median income: $41,600 (2020)
Average income: $51,040 (2020)

History

The federal district was created in 1976 from parts of Grenville–Carleton and Leeds ridings.^[5]

It was initially defined as consisting of the County of Grenville and the County of Leeds, excluding the Town of Smiths Falls. Since 1987, it was re-defined as consisting of the United Counties of Leeds and Grenville, but this did not result in any boundary changes, as Smiths Falls is not part of the county. The 2003 redistribution defined the riding as also including the independent municipalities of Brockville, Gananoque and Prescott which are politically separate jurisdictions, but are geographically within the county, and therefore did not result in a boundary change either.

With the 2012 electoral redistribution, this district lost a small portion of territory to Lanark—Frontenac—Kingston,^[6] following an annexation of a parcel of land by the Town Smiths Falls. In the process, the riding was renamed Leeds—Grenville—Thousand Islands and Rideau Lakes.

Following the 2022 Canadian federal electoral redistribution, this riding will be renamed Leeds—Grenville—Thousand Islands—Rideau Lakes at the first election held after approximately April 2024.^[7]

Members of Parliament

This riding has elected the following members of Parliament:

Parliament	Years	Member		Party
Leeds—Grenville Riding created from Grenville—Carleton and Leeds
31st	1979–1980		Thomas Cossitt	Progressive Conservative
32nd	1980–1982
	1982–1984		Jennifer Cossitt
33rd	1984–1988
34th	1988–1993		Jim Jordan	Liberal
35th	1993–1997
36th	1997–2000		Joe Jordan
37th	2000–2004
38th	2004–2006		Gord Brown	Conservative
39th	2006–2008
40th	2008–2011
41st	2011–2015
Leeds—Grenville—Thousand Islands and Rideau Lakes
42nd	2015–2018		Gord Brown	Conservative
	2018–2019		Michael Barrett
43rd	2019–2021
44th	2021–2025
Leeds—Grenville—Thousand Islands—Rideau Lakes
45th	2025–present		Michael Barrett	Conservative

Election results

Graph of election results in Leeds—Greenville—Thousand Islands and Rideau Lakes (minor parties that never got 2% of the vote or didn't run consistently are omitted)

v t e 2025 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Conservative	Michael Barrett	33,437	50.0	–0.48
	Liberal	Lorna Jean Edmonds	29,656	44.4	+19.19
	New Democratic	Paul Lancione	2,341	3.5	–11.45
	Green	Randi Ramdeen	781	1.2	–2.43
	People's	Hailey Simpson	596	0.9	–4.84
Total valid votes			66,811	99.5
Total rejected ballots			356	0.5
Turnout			67,167	74.2	+5.7
Eligible voters			90,557
	Conservative hold		Swing		–9.84
Source: Elections Canada[8][9]

2021 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Conservative	Michael Barrett	29,950	50.5	+1.5	$69,700.58
	Liberal	Roberta L. Abbott	14,935	25.2	-1.3	$50,514.06
	New Democratic	Michelle Taylor	8,863	15.0	+1.0	$8,264.09
	People's	Alex Cassell	3,394	5.7	+4.0	$14,874.54
	Green	Lorraine Rekmans	2,134	3.6	-5.2	$9,291.93
Total valid votes/expense limit			59,276	–	–	$116,064.78
Total rejected ballots			380
Turnout			59,656	68.48
Eligible voters			87,118
Source: Elections Canada[10]

v t e 2019 Canadian federal election: Leeds—Grenville—Thousand Islands and Rideau Lakes
Party	Candidate	Votes	%	±%	Expenditures
	Conservative	Michael Barrett	28,630	48.98	-8.85	$52,413.10
	Liberal	Josh Bennett	15,482	26.49	-9.32	$48,972.84
	New Democratic	Michelle Taylor	8,201	14.03	+11	$4,315.07
	Green	Lorraine Rekmans	5,152	8.81	+5.86	none listed
	People's	Evan Hindle	988	1.69		none listed
Total valid votes/expense limit			58,453	100.0
Total rejected ballots			479
Turnout			58,932	69.8
Eligible voters			84,442
	Conservative hold		Swing		+0.24
Source: Elections Canada[11][12]

Main article: 2018 Leeds—Grenville—Thousand Islands and Rideau Lakes federal by-election

Canadian federal by-election, 3 December 2018 Death of Gord Brown
Party	Candidate	Votes	%	±%	Expenditures
	Conservative	Michael Barrett	16,865	57.83	+10.46
	Liberal	Mary Jean McFall	10,443	35.81	-4.74
	New Democratic	Michelle Taylor	883	3.03	-5.34
	Green	Lorraine Rekmans	859	2.95	-0.75
	Independent	John Turmel	111	0.38
Total valid votes/expense limit			29,161	100.00
Total rejected ballots
Turnout				35.89	-35.18
Eligible voters			81,247
	Conservative hold		Swing		+7.60

2015 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Conservative	Gord Brown	26,738	47.38	-13.43	$118,628.90
	Liberal	Mary Jean McFall	22,888	40.56	+24.66	$98,777.41
	New Democratic	Margaret Andrade	4,722	8.37	-9.95	$5,647.96
	Green	Lorraine A. Rekmans	2,088	3.70	-1.29	$6,935.40
Total valid votes/expense limit			56,436	100.00		$213,643.31
Total rejected ballots			189	0.33	–
Turnout			56,625	71.08	–
Eligible voters			79,669
	Conservative hold		Swing		-19.04
Source: Elections Canada[13][14]

2011 federal election redistributed results[15]
Party		Vote	%
	Conservative	29,989	60.80
	New Democratic	9,032	18.31
	Liberal	7,839	15.89
	Green	2,460	4.99

2011 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Conservative	Gordon Brown	29,991	60.81	+2.36	$69,695
	New Democratic	Matthew Gabriel	9,033	18.31	+4.46	$5,092
	Liberal	Marjory Loveys	7,839	15.89	-1.29	$52,628
	Green	Mary Slade	2,460	4.99	-4.63	$17,743
Total valid votes/expense limit			49,323	100.00		$145,158
Total rejected ballots			156	0.32	-0.08
Turnout			49,479	64.42	+1.56
Eligible voters			76,802	–	–
	Conservative hold		Swing		-1.05

2008 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Conservative	Gord Brown	27,473	58.44	+3.80	$55,637
	Liberal	Marjory Loveys	8,075	17.18	-7.14	$31,418
	New Democratic	Steve Armstrong	6,511	13.85	-1.41	$6,532
	Green	Jeanie Warnock	4,522	9.62	+3.85	$10,790
	Progressive Canadian	John McCrea	426	0.91	*	$291
Total valid votes/expense limit			47,007	100.00		$104,668
Rejected ballots			186	0.39	+0.09
Turnout			47,193	62.86	-7.65
Eligible voters			75,075	–	–
	Conservative hold		Swing		+5.47

2006 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Conservative	Gord Brown	28,447	54.65	+4.18	$69,350
	Liberal	Bob Eaton	12,661	24.32	-8.61	$28,806
	New Democratic	Steve Armstrong	7,945	15.26	+3.94	$7,043
	Green	David Lee	3,003	5.77	+0.49	$450
Total valid votes			52,056	100.00
Rejected ballots			159	0.30	-0.06
Turnout			52,215	70.51	+0.13
Eligible voters			74,055	–	–
	Conservative hold		Swing		+6.39

2004 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Conservative	Gord Brown	26,002	50.46	-5.80	$69,173
	Liberal	Joe Jordan	16,967	32.93	-6.58	$60,373
	New Democratic	Steve Armstrong	5,834	11.32	+9.22	$10,009
	Green	Chris Bradshaw	2,722	5.28	+3.55	$532
Total valid votes			51,525	100.00
	Conservative notional hold		Swing		+0.39

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	%	±%	Expenditures
	Liberal	Joe Jordan	18,594	39.51	+0.04	$52,586
	Alliance	Gord Brown	18,539	39.39	+17.77	$61,645
	Progressive Conservative	John Johnston	7,940	16.87	-15.40	$55,627
	New Democratic	Martin Hanratty	990	2.10	-1.52	$1,764
	Green	Jerry Heath	816	1.73	-0.54	$3,302
	Canadian Action	Jane Pamela Scharf	181	0.38	*	$0
Total valid votes			47,060	100.00
	Liberal hold		Swing		-8.86

Note: Canadian Alliance vote is compared to the Reform vote in 1997 election.

1997 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Liberal	Joe Jordan	19,123	39.47	-13.10	$48,446
	Progressive Conservative	Sandra Lawn	15,636	32.27	+5.34	$58,733
	Reform	Doug Aldridge	10,476	21.62	+5.65	$18,190
	New Democratic	Jennifer Breakspear	1,757	3.63	+1.60	$3,522
	Green	Peter Bevan-Baker	1,102	2.27	+1.21	$1,427
	Christian Heritage	Donny F. Platt	241	0.50	*	$544
	Natural Law	Wayne Foster	119	0.25	-0.14	$0
Total valid votes			48,454	100.00
	Liberal hold		Swing		-9.22

1993 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Liberal	Jim Jordan	26,567	52.57	+9.17	$49,114
	Progressive Conservative	Sandra Lawn	13,608	26.93	-11.97	$53,521
	Reform	Paul West	8,071	15.97	*	$8,164
	New Democratic	Mary Ann Greenwood	1,026	2.03	-9.05	$6,686
	Green	Peter Bevan-Baker	538	1.06	*	$0
	National	Holly Baker	474	0.94	*	$490
	Natural Law	Richard Beecroft	196	0.39	*	$0
	Abolitionist	Christine Richardson	59	0.12	*	$200
Total valid votes			50,539	100.00
	Liberal hold		Swing		+10.57

1988 Canadian federal election
Party	Candidate	Votes	%	±%
	Liberal	Jim Jordan	20,141	43.39	+20.08
	Progressive Conservative	Jennifer Cossitt	18,053	38.89	-22.60
	New Democratic	Barry Grills	5,141	11.08	-2.89
	Christian Heritage	David Butcher	1,584	3.41
	Confederation of Regions	Faye Garner	1,497	3.23
Total valid votes			46,416	100.00
	Liberal gain from Progressive Conservative		Swing		+20.08

1984 Canadian federal election
Party	Candidate	Votes	%	±%
	Progressive Conservative	Jennifer Cossitt	26,961	61.50	+10.28
	Liberal	Chuck Anderson	10,222	23.32	-8.40
	New Democratic	Jan Allen	6,121	13.96	-3.11
	Green	Mike Nickerson	348	0.79
	Libertarian	Hans Wienhold	190	0.43
Total valid votes			43,842	100.00
	Progressive Conservative hold		Swing		+9.34

^ Change is from 1980

Canadian federal by-election, 12 October 1982
Party	Candidate	Votes	%	±%
upon Tom Cossitt's death on 15 March 1982
	Progressive Conservative	Jennifer Cossitt	18,401	57.00	+5.79
	Liberal	Chuck Anderson	6,693	20.73	-10.98
	Libertarian	Neil Reynolds	4,337	13.44
	New Democratic	Milred Smith	2,751	8.52	-8.55
	Independent	Ray Turmel	99	0.31
Total valid votes			32,281	100.00
	Progressive Conservative hold		Swing		+8.38

1980 Canadian federal election
Party	Candidate	Votes	%	±%
	Progressive Conservative	Tom Cossitt	19,800	51.22	-5.59
	Liberal	Gerry McKee	12,260	31.71	+3.94
	New Democratic	Mildred Smith	6,600	17.07	+1.65
Total valid votes			38,660	100.00
	Progressive Conservative hold		Swing		-4.76

1979 Canadian federal election
Party	Candidate	Votes	%
	Progressive Conservative	Tom Cossitt	24,127	56.80
	Liberal	Gerry McKee	11,797	27.77
	New Democratic	Mildred Smith	6,551	15.42
Total valid votes			42,475	100.00

See also

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