Susan Lahey
IncumbentMPP for York—Simcoe
MPP (Member of Provincial Parliament)
Provincial Riding: York—Simcoe
Community / Municipality: Bradford West Gwillimbury, Georgina, East Gwillimbury
Susan Lahey is the Member of Provincial Parliament for York—Simcoe, elected in the provincial by-election on September 3, 2026.
The by-election was called following the resignation of long-serving MPP Caroline Mulroney in June 2026. Lahey retained the seat for the Progressive Conservative Party with 49.81% of the vote.
Public Service & Municipal Experience
Prior to her election to Queen’s Park, Susan Lahey served as a municipal Town Councillor in East Gwillimbury, where she championed responsible local growth management, municipal service efficiency, and community recreation investments.
Background & Entrepreneurship
A longtime resident of the York–Simcoe region and a single mother who raised her family in the community, Lahey has spent decades as an entrepreneur and small business owner.
Her extensive community involvement includes serving on the Governance Committee of Community & Home Assistance to Seniors (CHATS), volunteering with the Mount Albert Lions Club, and supporting the Women’s Centre of York Region and the East Gwillimbury Public Library.
Local Priorities
- Advancing construction of the Bradford Bypass connecting Highway 400 and Highway 404 to relieve East-West gridlock across Bradford West Gwillimbury.
- Expanding Southlake Regional Health Centre services for South Simcoe and northern York residents.
- Supporting the Holland Marsh agricultural basin and Holland River environmental stewardship.
Constituency Office
- Holland Landing: 45 Grist Mill Road, Unit 9, Holland Landing, ON L9N 1M7
- Bradford: Serving residents across Bradford West Gwillimbury