Markham—Stouffville

Markham—Stouffville stretches from the suburban developments of eastern Markham northward into the Town of Whitchurch-Stouffville, where heritage main streets and working farms sit along the Oak Ridges Moraine. The riding bridges the fast-growing suburbs of York Region with the agricultural landscapes and conservation lands that mark the northern edge of the Greater Toronto Area.

Candidates

Helena Jaczek (Liberal) — Born in England, Jaczek emigrated to Canada in 1963 and earned a medical degree and a Master of Health Science from the University of Toronto, later adding an MBA from York University. She served as Medical Officer of Health for York Region for eighteen years, overseeing public health for a population that grew from roughly 472,000 to over one million. She represented Oak Ridges—Markham in the Ontario Legislature from 2007 to 2018, serving as Minister of Community and Social Services and later Minister of Health and Long-Term Care under Premier Kathleen Wynne.

Theodore Antony (Conservative) — A local businessman working in the Registered Education Savings Plan (RESP) industry, Antony had built his business and raised his family in the Markham—Stouffville area. An immigrant to Canada, he ran a ground-level campaign recognized for its door-knocking outreach.

Jane Philpott (Independent) — A family physician who practised in Markham—Stouffville from 1998 to 2015, Philpott served as Chief of the Department of Family Medicine at Markham Stouffville Hospital from 2008 to 2014 and was an associate professor in the University of Toronto's Department of Family and Community Medicine. Elected as a Liberal in 2015, she held senior cabinet posts including Minister of Health and Minister of Indigenous Services before resigning from cabinet in March 2019 over the SNC-Lavalin affair. She was subsequently removed from the Liberal caucus and ran as an Independent.

Hal Berman (NDP) — Berman carried the NDP standard in the riding, campaigning on affordability and public services.

Roy Long (Green Party) and Jeremy Lin (People's Party) also appeared on the ballot.

About the Riding

The riding's dual character defines its politics. Markham's eastern neighbourhoods are densely built suburban communities with significant Chinese, South Asian, and Filipino populations, tied economically to the GTA's technology and professional services sectors. The Town of Whitchurch-Stouffville retains a small-town identity, with its heritage main street, surrounding farmland, and conservation lands on the Oak Ridges Moraine — a glacial ridge that supplies groundwater to much of southern Ontario and was the subject of ongoing development debates.

Markham Stouffville Hospital is the riding's principal health-care institution. Rapid population growth driven by immigration and new housing construction placed sustained pressure on transit, schools, and local infrastructure. Highway 404 congestion and the adequacy of GO Transit's Stouffville commuter rail line were persistent concerns. The 2019 campaign in this riding was dominated by the high-profile contest between Jaczek and Philpott, which drew national media attention to the SNC-Lavalin controversy and questions of political independence versus party loyalty.