Middlesex County Council is made up of representatives from 7 member municipalities within the County's boundaries. The Head of County Council is elected from among the Council members in December of each year by a vote at Council and is known as the Warden.

Councillor Susan Clarke (2026 Warden)
Mayor, Municipality of Adelaide Metcalfe
Bio
Susan Clarke began her career in politics in 2018 when she was elected Councillor for the Municipality of Adelaide Metcalfe. In 2022, she was acclaimed as Mayor of Adelaide Metcalfe, and in December 2025, she was elected to serve as Warden of Middlesex County for the 2025/2026 term. She is a retired banker with over 32 years of experience in various positions, particularly a Regional Manager for Investment Services and Account Manager Roles in Commercial Credit, Small Business and Agriculture.
Having served on the Middlesex County Steering Committee to establish a Community Futures Development Corporation (CFDC), Susan was a member of the Loans Committee and served on the CFDC Board for over 15 years. She has served on many committees and boards in London and Middlesex County, such as Middlesex Community Living and Participation House London.
In addition to her council responsibilities, Susan is completing her 33rd year of service with the Caradoc Townsend Mutual Insurance Board and their Audit & Investment Committees. She is also CTM’s Legislative Affairs Representative at the Ontario Mutual Insurance Association.
A lifelong resident of London and Middlesex County, Susan, along with her husband David, operate a cash crop farm in Adelaide Metcalfe Township. She is also a graduate of UWO.
Committees and Boards:
- Middlesex County Library Board
- Middlesex County Budget Committee
- Middlesex Accessibility Advisory Committee
- Planning Advisory Committee
- Intergovernmental Relations Committee
- County/City Liaison Committee
- University of Western Ontario Board of Directors
Contact:
Email: @email
Website: www.adelaidemetcalfe.on.ca

Councillor Brian Ropp
Mayor, Municipality of North Middlesex
Committees and Boards:
- Middlesex-London Paramedic Services Authority Board - Board Chair
- Middlesex County Budget Committee
- Intergovernmental Relations Committee
- County/City Liaison Committee
- Western Fair Programming Council
Contact:
Email: @email
Website: www.northmiddlesex.on.ca

Councillor Aina DeViet
Mayor, Municipality of Middlesex Centre
Committees and Boards:
- Middlesex-London Board of Health
- Association of Municipalities Ontario (AMO)
- AMO Board, Director
- Executive Committee, Caucus Chair, County Caucus
- Health Transformation Task Force, Vice-Chair
- Local Authority Services (LAS) Board, Director (AMO Representative)
Contact:
Email: @email
Website: www.middlesexcentre.on.ca

Councillor Cathy Burghardt-Jesson
Mayor, Municipality of Lucan Biddulph
Committees and Boards:
- Middlesex-London Paramedic Services Authority Board
- Southwest Community Transit Committee
Contact:
Email: @email
Website: www.lucanbiddulph.on.ca
Councillor John Brennan
Deputy Mayor, Municipality of Middlesex Centre
Committees and Boards:
- Middlesex Accessibility Advisory Committee (Chair)
- Planning Advisory Committee (Chair)
- Western Fair Board
- Middlesex-London Paramedic Service Authority Board
Contact:
Email: @email
Website: www.middlesexcentre.on.ca
Councillor Allan Mayhew
Mayor, Municipality of Southwest Middlesex
Committees and Boards:
- Middlesex Accessibility Advisory Committee
- Planning Advisory Committee
Contact:
Email: @email
Website: www.southwestmiddlesex.ca
Councillor Colin Grantham
Mayor, Municipality of Strathroy-Caradoc
Committees and Boards:
- London-Middlesex Housing Corporation
- County/City Liaison Committee
- Middlesex County Budget Committee
Contact:
Email: @email
Website: www.strathroy-caradoc.ca
Councillor Mike McGuire
Deputy Mayor, Municipality of Strathroy-Caradoc
Committees and Boards:
- Middlesex-London Paramedic Services Authority Board
- Middlesex-London Board of Health
Contact:
Email: @email
Website: www.strathroy-caradoc.ca
Councillor Sharron McMillan
Mayor, Municipality of Thames Centre
Committees and Boards:
- Library Board
- Planning Advisory Committee
Contact:
Email: @email
Website: www.thamescentre.on.ca
Councillor Michelle Smibert
Deputy Mayor, Municipality of Thames Centre
Committees and Boards:
- Budget Committee
- Intergovernmental Relations Committee
- Middlesex-London Board of Health
Contact:
Email: @email
Website: www.thamescentre.on.ca