Niagara West 2025 Ontario Provincial Election Results Map

Niagara West — 2025 Election Results

Poll-by-poll results for Niagara West in the 2025 Ontario election. The Progressive Conservative candidate won this riding. Explore detailed voting data, candidate results, and turnout statistics at the poll level.

Riding information

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Niagara West

Niagara West stretches across the municipalities of Grimsby, Lincoln, Pelham, West Lincoln, and parts of St. Catharines, sitting in the heart of Ontario's wine country and tender fruit belt. Sam Oosterhoff had held the seat since winning a 2016 by-election at age 19, becoming the youngest MPP in Ontario history, and was re-elected in both 2018 and 2022. In June 2024, he was elevated to cabinet as Associate Minister of Energy-Intensive Industries, a new portfolio focused on energy needs for steel production, automotive manufacturing, and the greenhouse sector. The 2025 race attracted eight candidates but Oosterhoff remained the prohibitive favourite in this traditionally conservative riding.

Candidates

Sam Oosterhoff (Progressive Conservative) — Oosterhoff was born in the Niagara region and first elected at age 19. He served as Parliamentary Assistant to several ministers during the Ford government's first term and was appointed Associate Minister of Energy-Intensive Industries in June 2024, a role focused on supporting energy needs for industry, agriculture, and residential growth.

Shauna Boyle (Liberal) — Boyle is a fitness instructor and community advocate with over 30 years of roots in the Niagara West area. She has experience in municipal politics, having run for office in 2014 and contributed to municipal campaigns in 2022. Her platform emphasized health care, education, and housing affordability.

Dave Augustyn (NDP) — Augustyn served as mayor of Pelham and Niagara Regional Councillor from 2006 to 2018. He has worked as a policy consultant to help prevent human trafficking in the Niagara Peninsula and has raised funds for Gillian's Place, Family and Children's Services Niagara, and local hospitals. He also ran as the NDP candidate in this riding in 2022.

Mark Harrison (Green Party) — Harrison is a retired business owner who managed enterprises in England, Scotland, South Africa, and Canada, including franchise locations in the Niagara region. Since retiring he has volunteered with the David Suzuki Foundation and the Niagara Peninsula Conservation Authority.

Minor candidates included Aaron Albano (New Blue Party), Aaron Allison (Ontario Party), Stefanos Karatopis (Libertarian), and Jim Torma (People's Political Party).

Local Issues

The long-delayed Casablanca GO station in Grimsby remained the most prominent transit issue in the riding. Originally slated to open in 2021, the project was repeatedly delayed after the province shifted to a third-party delivery approach. During the 2025 campaign, all three major parties committed to building the station, and the Ford government announced the project was moving forward with a contract to be awarded in the spring. The station would connect Grimsby commuters to the broader GO network for the first time, addressing traffic congestion that had worsened with the community's rapid growth.

The tension between agricultural preservation and suburban development continued to define the riding's character. Niagara West sits in Canada's largest wine-producing region and produces a significant share of Ontario's tender fruit crop, yet farmland area in several municipalities had been declining. The Ford government's 2023 Greenbelt controversy, in which protected lands were opened for development before the decision was reversed under pressure from the Auditor General's findings, heightened local concern about the vulnerability of agricultural land to speculative development.

Energy infrastructure emerged as a newer concern, reflecting Oosterhoff's cabinet portfolio. The greenhouse sector in the Niagara region is energy-intensive, and growers faced rising electricity costs and grid capacity constraints that threatened the viability of their operations.

Nearby Ridings