Oshawa

Located on the north shore of Lake Ontario roughly sixty kilometres east of downtown Toronto, Oshawa served as the eastern anchor of the Greater Toronto Area and the largest municipality in Durham Region. The riding covered the urban core of the city, from the waterfront and harbour area north through established residential neighbourhoods to the growing subdivisions on the city's northern fringe.

Candidates

Colin Carrie (Conservative) — First elected in 2004, Carrie held a degree in kinesiology from the University of Waterloo and a Doctor of Chiropractic from the Canadian Memorial Chiropractic College, and had practised as a chiropractor in Oshawa before entering politics. In September 2013, he was appointed Parliamentary Secretary to the Minister of the Environment. He was also a founding chair of the Conservative Party's Automotive Caucus, reflecting the riding's deep ties to the auto industry.

Mary Fowler (NDP) — Fowler was a Durham-area teacher and labour activist who brought a focus on child care, education funding, and workers' rights to the campaign.

Tito-Dante Marimpietri (Liberal) — A former Oshawa city and regional councillor, Marimpietri entered the federal race with extensive experience in municipal government. He had served on Oshawa council before stepping away to pursue the Liberal nomination.

Michael Dempsey (Green Party) — Dempsey ran for the Green Party in the riding.

David Gershuny also ran for the Marxist-Leninist Party.

About the Riding

Oshawa's identity had been shaped for over a century by General Motors, which maintained its Canadian headquarters and the Oshawa Assembly Complex in the city. At its peak in the 1980s, the assembly plants employed some twenty-three thousand workers and produced hundreds of thousands of vehicles annually. By 2015 the workforce had declined substantially from those heights, but GM remained the city's most prominent employer and the automotive sector continued to anchor the local economy. The city had been diversifying, with Lakeridge Health providing a major health care complex and the University of Ontario Institute of Technology — which opened in 2003 — growing its student population in the city's north end. Oshawa's proximity to Toronto via Highway 401 and GO Transit commuter rail made it an increasingly attractive option for homebuyers priced out of the Toronto market, driving residential growth and raising questions about infrastructure capacity. The future of automotive manufacturing, transit connectivity to Toronto, and the management of rapid suburban expansion were central local concerns heading into the 2015 election.