Markham—Thornhill (federal electoral district)

Markham—Thornhill is a federal electoral district in Ontario, Canada, that has been represented in the House of Commons of Canada since 2015. It encompasses a portion of Ontario previously included in the electoral districts of Markham—Unionville and Thornhill.^[3]

Markham—Thornhill was created by 2012 federal electoral boundaries redistribution and was legally defined in the 2013 representation order. It came into effect upon the dropping of the writs for the 2015 federal election.^[4]

Demographics

Markham—Thornhill loses more people than any other federal electoral district in the 905 region. The population in 2016 was 99,078 which is a 3.1% drop from 102,221 in 2011.

According to the 2021 Canadian census^[5]

Ethnic groups: 42.8% Chinese, 27.5% South Asian, 12.7% White, 3.8% Black, 2.7% Filipino, 3.0% West Asian, 1.3% Korean
Languages: 29.5% English, 18.7% Cantonese, 13.8% Mandarin, 7.6% Tamil, 3.1% Urdu, 2.3% Punjabi, 2.0% Persian, 1.9% Gujarati, 1.3% Tagalog, 1.0% Korean
Religions: 28.2% Christian (13.5% Catholic, 2.4% Christian Orthodox, 1.0% Anglican, 11.3% other), 14.3% Hindu, 10.8% Muslim, 4.7% Buddhist, 3.1% Jewish, 2.2% Sikh, 36.1% none
Median income: $32,400 (2020)
Average income: $47,640 (2020)

Members of Parliament

This riding has elected the following members of Parliament:

Parliament	Years		Party
Markham—Thornhill Riding created from Markham—Unionville and Thornhill
42nd	2015–2017	John McCallum	Liberal
42nd	2017–2019	Mary Ng
43rd	2019–2021
44th	2021–present

Election results

Graph of general election results in Markham—Thornhill (minor parties that never got 2% of the vote or didn't run consistently are omitted)

2021

2021 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Liberal	Mary Ng	23,709	61.5	+7.6	$67,977.46
	Conservative	Melissa Felian	10,136	26.3	-8.3	$57,520.72
	New Democratic	Paul Sahbaz	3,222	8.4	+1.1	$633.62
	Green	Mimi Lee	813	2.1	-0.7	$4,285.37
	People's	Ilia Pashaev	648	1.7	+0.9	$1,203.75
Total valid votes/expense limit			38,528	–	–	$106,559.92
Total rejected ballots			398
Turnout			38,926	55.70
Eligible voters			69,883
Source: Elections Canada^[6]

2019

v t e 2019 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Liberal	Mary Ng	23,899	53.91	+2.55	$80,357.71
	Conservative	Alex Yuan	15,319	34.56	-4.43	$74,064.17
	New Democratic	Paul Sahbaz	3,233	7.29	+3.81	none listed
	Green	Chris Williams	1,247	2.81	+0.60	none listed
	People's	Peter Remedios	357	0.81		$0.00
	Independent	Josephbai Macwan	276	0.62		none listed
Total valid votes/expense limit			44,331	100.0
Total rejected ballots			448	1.00	+0.41
Turnout			44,779	61.76	+31.14
Eligible voters			72,499
	Liberal hold		Swing		+3.49
Source: Elections Canada^[7]^[8]

2017 by-election

A by-election was held on April 3, 2017, following John McCallum's appointment as Ambassador to China on January 10, 2017.^[9]

Canadian federal by-election, April 3, 2017 Resignation of John McCallum
Party	Candidate	Votes	%	±%
	Liberal	Mary Ng	9,856	51.53	−4.19
	Conservative	Ragavan Paranchothy	7,501	39.22	+6.91
	New Democratic	Gregory Hines	671	3.51	−7.21
	Progressive Canadian	Dorian Baxter	566	2.96
	Green	Caryn Bergmann	426	2.23	+0.98
	Libertarian	Brendan Thomas Reilly	118	0.62
	Independent	Above Znoneofthe	77	0.40
Total valid votes/expense limit			19,125	100.0	–
Total rejected ballots				-
Turnout			27.51
Eligible voters			69,838
	Liberal hold		Swing		−5.55

2015

2015 Canadian federal election
Party	Candidate	Votes	%	±%	Expenditures
	Liberal	John McCallum	23,878	55.72	+18.61	$78,406.90
	Conservative	Jobson Easow	13,849	32.31	-4.08	$128,323.59
	New Democratic	Senthi Chelliah	4,595	10.72	-12.67	$48,598.52
	Green	Joshua Russell	535	1.25	-1.37	–
Total valid votes/expense limit			42,857	100.00		$203,953.81
Total rejected ballots			240	0.56	–
Turnout			43,097	61.14	–
Eligible voters			70,484
	Liberal notional hold		Swing		+11.34
Source: Elections Canada^[10]^[11]

2011 federal election redistributed results^[12]
Party		Vote	%
	Liberal	14,128	37.11
	Conservative	13,856	36.39
	New Democratic	8,907	23.39
	Green	998	2.62
	Others	186	0.49

References

^ "Census Profile, 2021 Census". Ottawa: Statistics Canada. 2022. Retrieved February 9, 2022.
^ Statistics Canada: 2012
^ Final Report – Ontario
^ Timeline for the Redistribution of Federal Electoral Districts
^ Government of Canada, Statistics Canada (February 9, 2022). "Profile table, Census Profile, 2021 Census of Population - Markham--Thornhill [Federal electoral district (2013 Representation Order)], Ontario". www12.statcan.gc.ca. Retrieved March 11, 2023.
^ "Official Voting Results". Elections Canada. Retrieved October 3, 2021.
^ "List of confirmed candidates". Elections Canada. Retrieved October 3, 2019.
^ "FORTY-THIRD GENERAL ELECTION 2019 — Poll-by-poll results (Markham—Thornhill)". Elections Canada. April 6, 2020. Retrieved April 19, 2020.
^ "The 3 new faces of Justin Trudeau's Liberal cabinet | CBC News".
^ Elections Canada – Confirmed candidates for Markham—Thornhill, 30 September 2015
^ Elections Canada – Preliminary Election Expenses Limits for Candidates Archived 2016-03-04 at the Wayback Machine
^ Pundits' Guide to Canadian Elections

v t e Federal ridings in Southern Durham and York
Liberal	Ajax Aurora—Oak Ridges—Richmond Hill Markham—Stouffville Markham—Thornhill Markham—Unionville Pickering—Uxbridge Richmond Hill Vaughan—Woodbridge Whitby
Conservative	King—Vaughan Oshawa Thornhill

Federal ridings in Ontario

Central
Ontario

Eastern
Ontario

S Durham
& York

SW Durham	Ajax Oshawa Pickering—Uxbridge Whitby
S York	Aurora—Oak Ridges—Richmond Hill King—Vaughan Markham—Stouffville Markham—Thornhill Markham—Unionville Richmond Hill Thornhill Vaughan—Woodbridge

City of Toronto
(Suburbs & Downtown)

Scarborough	Scarborough—Agincourt Scarborough Centre Scarborough-Guildwood Scarborough North Scarborough—Rouge Park Scarborough Southwest
Beaches—East York Davenport Don Valley East Don Valley North Don Valley West Eglinton—Lawrence Humber River—Black Creek Parkdale—High Park Spadina—Fort York Toronto Centre Toronto—Danforth Toronto—St. Paul's University—Rosedale Willowdale York Centre York South—Weston
Etobicoke	Etobicoke Centre Etobicoke—Lakeshore Etobicoke North

Cities of
Brampton &
Mississauga

Brampton	Brampton Centre Brampton East Brampton North Brampton South Brampton West
Mississauga	Mississauga Centre Mississauga East—Cooksville Mississauga—Erin Mills Mississauga—Lakeshore Mississauga—Malton Mississauga—Streetsville

Southern
Halton,
Hamilton
and Niagara

Southwestern Halton	Burlington Milton Oakville Oakville North—Burlington
City of Hamilton	Flamborough—Glanbrook Hamilton Centre Hamilton East—Stoney Creek Hamilton Mountain Hamilton West—Ancaster—Dundas
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