This category links articles related to counties and regions in the Canadian province of Ontario. The category also includes Ontario's single tier municipalities, which are former counties or regions which have been amalgamated into a single municipality with no further government divisions below it.

Subcategories

There are 10 subcategories to this category.

Halton Region Hamilton Hamilton, Ontario

H Historic counties of Ontario O Ontario districts Ottawa P Peel Region

T Toronto W Wellington County Y York Region

Articles in category "Ontario counties and regions"

There are 42 articles in this category.

List of Ontario census divisions by population List of Ontario census divisions B Brant, Ontario Brantford, Ontario Bruce County, Ontario Burford, Ontario C Chatham-Kent, Ontario D Dufferin County, Ontario Durham Regional Municipality, Ontario E Elgin County, Ontario Essex County, Ontario F Frontenac County, Ontario G Greater Sudbury, Ontario Grey County, Ontario

H Haldimand County, Ontario Haliburton County, Ontario Halton Hills, Ontario Halton Regional Municipality, Ontario Hastings County, Ontario Huron County, Ontario K Kawartha Lakes, Ontario L Lambton County, Ontario Lanark County, Ontario Leeds and Grenville United Counties, Ontario Lennox and Addington County, Ontario M Middlesex County, Ontario Muskoka District Municipality, Ontario N Niagara Regional Municipality, Ontario Norfolk County, Ontario

N cont. Northumberland County, Ontario O Oxford County, Ontario P Peel Regional Municipality, Ontario Perth County, Ontario Peterborough County, Ontario Prescott and Russell United Counties, Ontario Prince Edward County, Ontario R Renfrew County, Ontario S Simcoe County, Ontario Stormont, Dundas and Glengarry United Counties, Ontario W Waterloo Regional Municipality, Ontario Wellington County, Ontario Y York Regional Municipality, Ontario