List of county roads in Ontario

• CR = County Road (or City Road, for those counties that have become City of County, such as the City of Prince Edward County, Ontario) • DR = District Road (only in Muskoka; similar routes in unincorporated districts are usually provincial Secondary or Tertiary Highways) • MR = Municipal Road (for Single-Tier Municipalities) • RR = Regional Road (Not Rural Route) • CH = County Highway - some counties have the same number designation for two or more County Routes, but some (like Durham RM and the City of Norfolk County) also list routes as County Highways (CR HWY/RR HWY/DR HWY), abbreviated as CH. These are designations for downloaded former provincial highways. A prime example is Durham RR 2, and Durham RR HWY 2. == Counties ==

=== Bruce County === === Dufferin County === ===Elgin County === === Essex County === === Frontenac County === === Grey County === === Haliburton County === === Hastings County === === Huron County === === Lambton County === === Lanark County === === United Counties of Leeds and Grenville === === Lennox and Addington County === === Middlesex County === === Northumberland County === === Perth County === === Peterborough County === === United Counties of Prescott and Russell === === Renfrew County === === Simcoe County === === United Counties of Stormont, Dundas and Glengarry === === Wellington County === == Regional/District Municipalities ==

=== Regional Municipality of Durham === === Regional Municipality of Halton === === District Municipality of Muskoka === === Regional Municipality of Niagara === === Oxford County === === Regional Municipality of Peel === :Main Articles: :*List of numbered roads in Peel Region :*List of roads in Brampton (includes non-numbered Brampton roads) :*List of roads in Mississauga (includes non-numbered Mississauga roads) === Regional Municipality of Waterloo === === Regional Municipality of York === == Single-tier municipalities ==

=== County of Brant === === Chatham-Kent === === Greater Sudbury === === Haldimand County === === Hamilton === === Kawartha Lakes=== === Kingston === === Norfolk County === === Ottawa === :Main Articles: :*List of numbered roads in Ottawa :*List of roads in Ottawa (includes non-numbered Ottawa roads) === Prince Edward County === === Toronto === :Main Articles: :*Metro Toronto Roads and Transportation (the present City of Toronto was formerly Metropolitan Toronto; a regional-level of government that maintained a non-numbered system of major roads) :*List of east-west roads in Toronto :*List of diagonal roads in Toronto :*List of north-south roads in Toronto ==References==