Niagara West (provincial electoral district)

Niagara West
Ontario electoral district
	Niagara West in relation to Hamilton and Niagara area ridings
Provincial electoral district
Legislature	Legislative Assembly of Ontario
MPP	Sam Oosterhoff; Progressive Conservative
;
District created	2015
First contested	2018
Last contested	2025
Demographics
Population (2016)	90,840
Electors (2018)	73,913
Area (km²)	1,122
Pop. density (per km²)	81
Census division	Niagara
Census subdivision(s)	Grimsby, Lincoln, Pelham, St. Catharines, Wainfleet, West Lincoln

Niagara West is a provincial electoral district in south eastern Ontario, Canada. This riding was created following the creation of the new federal Niagara West riding in the 2012 federal electoral redistribution and includes portions of the former Niagara West—Glanbrook, Niagara Centre and St. Catharines ridings. It elected one member to the Legislative Assembly of Ontario in the 42nd general election.

District created2015

First contested2018

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Assembly	Years		Party
Riding created from Niagara West—Glanbrook, Niagara Centre and St. Catharines
42nd	2018–2022	Sam Oosterhoff	Progressive Conservative
43rd	2022–present	Sam Oosterhoff	Progressive Conservative

2025 Ontario general election
Party	Candidate	Votes	%	±%	Expenditures
	Progressive Conservative	Sam Oosterhoff	22,916	51.13	+6.20	$59,145
	Liberal	Shauna Boyle	11,091	24.75	+5.58	$25,529
	New Democratic	Dave Augustyn	7,312	16.32	–4.39	$28,159
	Green	Mark Harrison	1,794	4.00	–2.46	$0
	New Blue	Aaron Albano	676	1.51	–1.12	$1,393
	Ontario Party	Aaron Allison	629	1.40	–3.88	$0
	Libertarian	Stefanos Karatopis	326	0.73	+0.11	$0
	Populist	Jim Torma	73	0.16	–0.03	$0
Total valid votes/expense limit			44,817	99.38	–0.02	$132,253
Total rejected, unmarked, and declined ballots			278	0.62	+0.02
Turnout			45,095	55.58	+2.42
Eligible voters			81,137
	Progressive Conservative hold		Swing		+0.31
Source: Elections Ontario^[3]^[4]

v t e 2022 Ontario general election
Party	Candidate	Votes	%	±%	Expenditures
	Progressive Conservative	Sam Oosterhoff	18,779	44.93	–7.88	$76,009
	New Democratic	Dave Augustyn	8,658	20.71	–9.09	$63,171
	Liberal	Doug Joyner	8,013	19.17	+8.65	$16,498
	Green	Laura Garner	2,702	6.46	+0.86	$37
	Ontario Party	Dan Dale	2,207	5.28	N/A	$13,247
	New Blue	Chris Arnew	1,098	2.63	N/A	$5,952
	Libertarian	Stefanos Karatopis	259	0.62	–0.36	none listed
	Populist	Jim Torma	80	0.19	N/A	none listed
Total valid votes			41,796	99.40	+0.64
Total rejected, unmarked, and declined ballots			251	0.60	–0.64
Turnout			42,047	53.16	–10.12
Eligible voters			78,138
	Progressive Conservative hold		Swing		+0.61
Source(s) "Summary of Valid Votes Cast for Each Candidate" (PDF). Elections Ontario. 2022. Archived from the original on 18 May 2023. "Statistical Summary by Electoral District" (PDF). Elections Ontario. 2022. Archived from the original on 21 May 2023. "Political Financing and Party Information". Elections Ontario. Retrieved 4 March 2025.

2018 Ontario general election
Party	Candidate	Votes	%	±%	Expenditures
	Progressive Conservative	Sam Oosterhoff	24,394	52.81	+5.01	$45,217
	New Democratic	Curtis Fric	13,769	29.81	+10.31	$11,680
	Liberal	Joe Kanee	4,859	10.52	–14.45	$12,332
	Green	Jessica Tillmanns	2,590	5.61	–0.15	$3,012
	Libertarian	Stefanos Karatopis	451	0.98	N/A	none listed
	Multicultural	Geoffrey E. Barton	127	0.27	N/A	none listed
Total valid votes			46,190	98.76
Total rejected, unmarked and declined ballots			579	1.24
Turnout			46,769	63.28
Eligible voters			73,913
	Progressive Conservative notional hold		Swing		–2.65
Source: Elections Ontario^[5]

2014 general election redistributed results^[6]
Party		Vote	%
	Progressive Conservative	19,482	47.80
	Liberal	10,185	24.97
	New Democratic	7,948	19.50
	Green	2,348	5.76
	Others	803	1.97

Members of Provincial Parliament