Key Ontario Regions & Single Tier Cities

Durham

• City of Oshawa
• City of Pickering
• Municipality of Clarington
• Town of Ajax
• Town of Whitby
• Township of Brock
• Township of Scugog
• Township of Uxbridge

Halton

• City of Burlington
• Town of Halton Hills
• Town of Milton
• Town of Oakville

Niagara

• City of Niagara Falls
• City of Port Colborne
• City of St. Catharines
• City of Thorold
• City of Welland
• Town of Fort Erie
• Town of Grimsby
• Town of Lincoln
• Town of Niagara-on-the-Lake
• Town of Pelham
• Township of Wainfleet
• Township of West Lincoln

Peel

• City of Brampton
• City of Mississauga
• Town of Caledon

Waterloo

• City of Cambridge
• City of Kitchener
• City of Waterloo
• Township of North Dumfries
• Township of Wellesley
• Township of Wilmot
• Township of Woolwich

York

• City of Vaughan
• Town of Aurora
• Town of East Gwillimbury
• Town of Georgina
• City of Markham
• Town of Newmarket
• Town of Richmond Hill
• Town of Whitchurch-Stouffville
• Township of King