A Guide to Ontario Municipalities

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There are 444 municipalities in Ontario as of April 2019, according to the Association of Municipalities Ontario.

For maps of Ontario's municipal boundaries:

Municipal Boundaries Map

Restructuring Maps of Ontario

Contents 1 Definitions for Types of Municipalities 2 Regions 2.1 Durham Region 2.2 Halton Region 2.3 Niagara Region 2.4 Peel Region 2.5 Waterloo Region 2.6 York Region 3 Counties 3.1 Bruce County 3.2 Dufferin County 3.3 Elgin County 3.4 Essex County 3.5 Frontenac County 3.6 Grey County 3.7 Haliburton County 3.8 Hastings County 3.9 Huron County 3.10 Lambton County 3.11 Lanark County 3.12 Leeds and Grenville United Counties 3.13 Lennox and Addington County 3.14 Middlesex County 3.15 Northumberland County 3.16 Oxford County 3.17 Perth County 3.18 Peterborough County 3.19 Prescott and Russell United Counties 3.20 Renfrew County 3.21 Simcoe County 3.22 Stormont Dundas and Glengarry County 3.23 Wellington County 4 Districts 4.1 Algoma District 4.2 Cochrane District 4.3 Kenora District 4.4 Manitoulin District 4.5 Muskoka District 4.6 Nipissing District 4.7 Parry Sound District 4.8 Rainy River District 4.9 Sudbury District 4.10 Timiskaming District 4.11 Thunder Bay District 5 Single Tier Locations

Definitions for Types of Municipalities

Historic Districts - These are not categorized in the Ontario Project Structure. The time period they are associated with is 1793 to 1849. They were the original unit for municipal and judicial administration in what is now Ontario. During this time period Districts were responsible for the assessment of real and personal property for taxation purposes. Local assessors reported to magistrates of the Courts of Quarter Sessions of the Peace. The magistrates were responsible for the municipal and judicial administration of the district.

Modern Districts - these are categorized as outlined below. The time period they are associated with is July 1, 1867 to Present. These districts are mostly located in what is considered Northern Ontario. They provide basic administrative services similar to Counties, however are much larger in physical size.

Regions - Also referred to as Regional Municipalities. This type of administration is similar to an upper tier municipality for urban areas.

Counties - The county system was the basis for ridings in the Legislative Assembly in Ontario. After the passage of the Baldwin Act (Canada Statutes 1849, chapter 81) they assumed the role of an upper tier municipality. Townships, villages and most other towns and cities formed part of a County.

Single-tier Municipalities - These include some cities, towns, townships and counties. They are considered separate from all other types of Municipalities. For example: A single-tier town or city is not included in the County, Region or District that it is physically part of, for administrative purposes.

Regions

A regional government is an association of local, lower level municipalities. They provide government services to their member municipalities. The current regions in Ontario and it's member municipalities are:

Durham Region

Durham Region

• Oshawa, Ontario (City)
• Pickering, Ontario (City)
• Clarington, Ontario (Municipality)
• Ajax, Ontario (Town)
• Whitby, Ontario (Town)
• Brock, Ontario (Township)
• Scugog, Ontario (Township)
• Uxbridge, Ontario (Township)

Halton Region

Halton Region

• Burlington, Ontario (City)
• Halton Hills, Ontario (Town)
• Milton, Ontario (Town)
• Oakville, Ontario (Town)

Niagara Region

Niagara Region

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

Peel Region

Peel Region

• Brampton, Ontario (City)
• Mississauga, Ontario (City)
• Caledon, Ontario (Town)

Waterloo Region

Waterloo Region

• Cambridge, Ontario (City)
• Kitchener, Ontario (City)
• Waterloo, Ontario (City)
• North Dumfries, Ontario (Township)
• Wellesley, Ontario (Township)
• Wilmot, Ontario (Township)
• Woolwich, Ontario (Township)

York Region

York Region

• Markham, Ontario (City)
• Richmond Hill, Ontario (City)
• Vaughan, Ontario (City)
• Aurora, Ontario (Town)
• East Gwillimbury, Ontario (Town)
• Georgina, Ontario (Town)
• Newmarket, Ontario (Town)
• Whitchurch-Stouffville, Ontario (Town)
• King, Ontario (Township)

Counties

In Ontario, a county government is an association of local municipalities within its borders. Counties are often referred to as Upper Tier, with local municipalities referred to as Lower Tier. The current Counties and their associated municipalities are:

Bruce County

Bruce County, Ontario

• Arran-Elderslie, Ontario (Municipality)
• Brockton, Ontario (Municipality)
• Kincardine, Ontario (Municipality)
• Northern Bruce Peninsula, Ontario (Municipality)
• South Bruce, Ontario (Municipality)
• Saugeen Shores, Ontario (Town)
• South Bruce Peninsula, Ontario (Town)
• Huron-Kinloss, Ontario (Township)

Dufferin County

Dufferin County, Ontario

• Grand Valley, Ontario (Town)
• Mono, Ontario (Town)
• Orangeville, Ontario (Town)
• Shelburne, Ontario (Town)
• Amaranth, Ontario (Township)
• East Garafraxa, Ontario (Township)
• Melancthon, Ontario (Township)
• Mulmur, Ontario (Township)

Elgin County

Elgin County, Ontario

• Bayham, Ontario (Municipality)
• Central Elgin, Ontario (Municipality)
• Dutton-Dunwich, Ontario (Municipality)
• West Elgin, Ontario (Municipality)
• Aylmer, Ontario (Town)
• Malahide, Ontario (Township)
• Southwold, Ontario (Township)

Essex County

Essex County, Ontario

• Leamington, Ontario (Municipality)
• Amherstburg, Ontario (Town)
• Essex, Ontario (Town)
• Kingsville, Ontario (Town)
• Lakeshore, Ontario (Town)
• Lasalle, Ontario (Town)
• Tecumseh, Ontario (Town)

Frontenac County

Frontenac County, Ontario

• Central Frontenac, Ontario (Township)
• Frontenac Islands, Ontario (Township)
• North Frontenac, Ontario (Township)
• South Frontenac, Ontario (Township)

Grey County

Grey County, Ontario

• Owen Sound, Ontario (City)
• The Blue Mountains Ontario (Town)
• Hanover, Ontario (Town)
• Meaford, Ontario (Municipality)
• Chatsworth, Ontario (Township)
• Georgian Bluffs, Ontario (Township)
• Grey Highlands, Ontario (Municipality)
• Southgate, Ontario (Township)
• West Grey, Ontario (Municipality)

Haliburton County

Haliburton County, Ontario

• Algonquin Highlands, Ontario (Township)
• Dysart, Ontario (Municipality)
• Highlands East, Ontario (Municipality)
• Minden Hills, Ontario (Township)

Hastings County

Hastings County, Ontario

• Centre Hastings, Ontario (Municipality)
• Hastings Highlands, Ontario (Municipality)
• Marmora and Lake, Ontario (Municipality)
• Tweed, Ontario (Municipality)
• Bancroft, Ontario (Town)
• Deseronto, Ontario (Town)
• Carlow-Mayo, Ontario (Township)
• Faraday, Ontario (Township)
• Limerick, Ontario (Township)
• Madoc, Ontario (Township)
• Stirling-Rawdon, Ontario (Township)
• Tudor and Cashel, Ontario (Township)
• Tyendinaga, Ontario (Township)
• Wollaston, Ontario (Township)

Huron County

Huron County, Ontario

• Bluewater, Ontario (Municipality)
• Central Huron, Ontario (Municipality)
• Huron East, Ontario (Municipality)
• Morris-Turnberry, Ontario (Municipality)
• South Huron, Ontario (Municipality)
• Goderich, Ontario (Town)
• Ashfield-Colborne-Wawanosh, Ontario (Township)
• Howick, Ontario (Township)
• North Huron, Ontario (Township)

Lambton County

Lambton County, Ontario

• Sarnia, Ontario (City)
• Lambton Shores, Ontario (Municipality)
• Petrolia, Ontario (Town)
• Brooke-Alvinston, Ontario (Municipality)
• Dawn-Euphemia, Ontario (Township)
• Enniskillen, Ontario (Township)
• Plympton-Wyoming, Ontario
• St. Clair, Ontario (Township)
• Warwick, Ontario (Township)
• Oil Springs, Ontario (Village)
• Point Edward, Ontario (Village)

Lanark County

Lanark County, Ontario

• Mississippi Mills, Ontario (Municipality)
• Carleton Place, Ontario (Town)
• Perth, Ontario (Town)
• Beckwith, Ontario (Township)
• Drummond-North Elmsley, Ontario (Township)
• Lanark Highlands, Ontario (Township)
• Montague, Ontario (Township)
• Tay Valley, Ontario (Township)

Leeds and Grenville United Counties

Leeds and Grenville United Counties

• North Grenville, Ontario (Municipality)
• Athens, Ontario (Township)
• Augusta, Ontario (Township)
• Edwardsburg-Cardinal, Ontario (Township)
• Elizabethtown-Kitley, Ontario (Township)
• Leeds and the Thousand Islands, Ontario (Township)
• Front of Yonge, Ontario (Township)
• Rideau Lakes, Ontario (Township)
• Merrickville-Wolford, Ontario (Village)
• Westport, Ontario (Village)

Lennox and Addington County

Lennox and Addington County, Ontario

• Greater Napanee, Ontario (Town)
• Addington Highlands, Ontario (Township)
• Loyalist, Ontario (Township)
• Stone Mills, Ontario (Township)

Middlesex County

Middlesex County, Ontario

• North Middlesex, Ontario (Municipality)
• Southwest Middlesex, Ontario (Municipality)
• Thames Centre, Ontario (Municipality)
• Adelaide Metcalfe, Ontario (Township)
• Lucan Biddulph, Ontario (Township)
• Middlesex Centre, Ontario (Township)
• Strathroy-Caradoc, Ontario (Township)
• Newbury, Ontario (Village)

Northumberland County

Northumberland County, Ontario

• Brighton, Ontario (Municipality)
• Cobourg, Ontario (Town)
• Port Hope, Ontario (Municipality)
• Trent Hills, Ontario (Municipality)
• Alnwick-Haldimand, Ontario (Township)
• Cramahe, Ontario (Township)
• Hamilton Township, Ontario (Township)

Oxford County

Oxford County, Ontario

• Woodstock, Ontario (City)
• Ingersoll, Ontario (Town)
• Tillsonburg, Ontario (Town)
• Blandford Blenheim, Ontario (Township)
• East Zorra-Tavistock, Ontario (Township)
• Norwich, Ontario (Township)
• South-West Oxford, Ontario (Township)
• Zorra, Ontario (Township)

Perth County

Perth County, Ontario

• North Perth, Ontario (Municipality)
• Perth East, Ontario (Township)
• Perth South, Ontario (Township)
• West Perth, Ontario (Municipality)

Peterborough County

Peterborough County, Ontario

• Asphodel-Norwood, Ontario (Township)
• Cavan Monaghan, Ontario (Township)
• Douro-Dummer, Ontario (Township)
• Havelock-Belmont-Methuen, Ontario (Township)
• North Kawartha, Ontario (Township)
• Otonabee-South Monaghan, Ontario (Township)
• Selwyn, Ontario (Township)
• Trent Lakes, Ontario (Township)

Prescott and Russell United Counties

Prescott and Russell United Counties, Ontario

• Clarence-Rockland, Ontario (City)
• Casselman, Ontario (Municipality)
• The Nation, Ontario (Municipality)
• Hawkesbury, Ontario (Town)
• Alfred and Plantagenet, Ontario (Township)
• Champlain, Ontario (Township)
• East Hawkesbury, Ontario (Township)
• Russell, Ontario (Township)

Renfrew County

Renfrew, Ontario

• Arnprior, Ontario (Town)
• Deep River, Ontario (Town)
• Laurentian Hills, Ontario (Town)
• Petawawa, Ontario (Town)
• Renfrew, Ontario (Town)
• Admaston-Bromley, Ontario (Township)
• Bonnechere Valley, Ontario (Township)
• Brudenell Lyndoch and Raglan, Ontario (Township)
• Greater Madawaska, Ontario (Township)
• Horton, Ontario (Township)
• Killaloe Hagarty and Richards, Ontario (Township)
• Laurentian Valley (Township)
• Madawaska Valley, Ontario (Township)
• McNab-Braeside, Ontario (Township)
• North Algona-Wilberforce, Ontario (Township)
• Whitewater Region, Ontario (Township)
• Head Clara and Maria, Ontario (United Townships)

Simcoe County

Simcoe County, Ontario

• Bradford West Gwillimbury, Ontario (Town)
• Collingwood, Ontario (Town)
• Innisfil, Ontario (Town)
• Midland, Ontario (Town)
• New Tecumseth (Town)
• Penetanguishene, Ontario (Town)
• Wasaga Beach, Ontario (Town)
• Adjala-Tosorontio, Ontario (Township)
• Clearview, Ontario (Township)
• Essa, Ontario (Township)
• Oro-Medonte, Ontario (Township)
• Ramara, Ontario (Township)
• Severn, Ontario (Township)
• Springwater, Ontario (Township)
• Tay, Ontario (Township)
• Tiny, Ontario (Township)

Stormont Dundas and Glengarry County

Stormont Dundas and Glengarry County, Ontario

• South Dundas, Ontario (Municipality)
• North Dundas, Ontario (Township)
• North Glengarry, Ontario (Township)
• North Stormont, Ontario (Township)
• South Glengarry, Ontario (Township)
• South Stormont, Ontario (Township)

Wellington County

Wellington County, Ontario

• Erin, Ontario (Town)
• Minto, Ontario (Town)
• Centre Wellington, Ontario (Township)
• Guelph-Eramosa, Ontario (Township)
• Mapleton, Ontario (Township)
• Puslinch, Ontario (Township)
• Wellington North, Ontario (Township)

Districts

In Ontario, Districts are used to describe territorial boundaries that do not serve any municipal government purpose. The exception to this rule is the District of Muskoka, Ontario which does provide services throughout the region.

As of June 19, 2019, all current Districts and their lower-tier municipalities have been updated for the Ontario Project. Bold place names have not been created.

Algoma District

Algoma District, Ontario

• Elliot Lake, Ontario (City)
• Sault Ste. Marie, Ontario (City)
• Huron Shores, Ontario (Municipality)
• Blind River, Ontario (Town)
• Bruce Mines, Ontario (Town)
• Thessalon, Ontario (Town)
• Dubreuilville, Ontario (Township)
• Hilton, Ontario (Township)
• Hornepayne, Ontario (Township)
• Jocelyn, Ontario (Township)
• Johnson, Ontario (Township)
• Laird, Ontario (Township)
• Macdonald Meredith and Aberdeen Additional, Ontario (Township)
• Wawa, Ontario (Municipality)
• Plummer Additional, Ontario (Township)
• Prince, Ontario (Township)
• Spanish, Ontario (Township)
• St. Joseph, Ontario (Township)
• Tarbutt, Ontario (Township)
• The North Shore, Ontario (Township)
• White River, Ontario (Township)
• Hilton Beach, Ontario (Village)

Cochrane District

Cochrane District, Ontario

• Timmins, Ontario (City)
• Cochrane, Ontario (Town)
• Hearst, Ontario (Town)
• Iroquois Falls, Ontario (Town)
• Kapuskasing, Ontario (Town)
• Moosonee, Ontario (Town)
• Smooth Rock Falls, Ontario (Town)
• Black River-Matheson, Ontario (Township)
• Fauquier-Strickland, Ontario (Township)
• Mattice-Val-Côté, Ontario (Township)
• Moonbeam, Ontario (Township)
• Opasatika, Ontario (Township)
• Val Rita-Harty, Ontario

Kenora District

Kenora District, Ontario

• Dryden, Ontario (City)
• Kenora, Ontario (City)
• Red Lake, Ontario (Municipality)
• Sioux Lookout (Municipality)
• Ear Falls, Ontario (Township)
• Ignace, Ontario (Township)
• Machin, Ontario (Township)
• Pickle Lake, Ontario (Township)
• Sioux Narrows-Nestor Falls, Ontario (Township)

Manitoulin District

Manitoulin District, Ontario

• Gore Bay, Ontario (Town)
• Northeastern Manitoulin and The Islands, Ontario (Town)
• Assiginack, Ontario (Township)
• Billings, Ontario (Municipality)
• Burpee and Mills, Ontario (Township)
• Central Manitoulin, Ontario (Municipality)
• Cockburn Island, Ontario (Township)
• Gordon-Barrie Island, Ontario (Municipality)
• Tehkummah, Ontario (Township)

Muskoka District

Muskoka District, Ontario

• Bracebridge, Ontario (Town)
• Gravenhurst, Ontario (Town)
• Huntsville, Ontario (Town)
• Georgian Bay, Ontario (Township)
• Lake of Bays, Ontario (Township)
• Muskoka Lakes, Ontario (Township)

Nipissing District

Nipissing District, Ontario

• North Bay, Ontario (City)
• Mattawa, Ontario (Town)
• Temagami, Ontario (Municipality)
• West Nipissing, Ontario (Municipality)
• Bonfield, Ontario (Township)
• Calvin, Ontario (Township)
• Chisholm, Ontario (Township)
• East Ferris, Ontario (Municipality)
• Mattawan, Ontario (Township)
• Papineau-Cameron, Ontario (Township)
• South Algonquin, Ontario (Township)

Parry Sound District

Parry Sound District, Ontario

• Callander, Ontario (Municipality)
• Magnetawan, Ontario (Municipality)
• Powassan, Ontario (Municipality)
• Whitestone, Ontario (Municipality)
• Kearney, Ontario (Town)
• Parry Sound, Ontario (Town)
• Armour, Ontario (Township)
• Carling, Ontario (Township)
• Joly, Ontario (Township)
• Machar, Ontario (Township)
• McDougall, Ontario (Township)
• McKellar, Ontario (Township)
• McMurrich-Monteith, Ontario (Township)
• Nipissing, Ontario (Township)
• Perry, Ontario (Township)
• Ryerson, Ontario (Township)
• Seguin, Ontario (Township)
• Strong, Ontario (Township)
• The Archipelago, Ontario (Township)
• Burk's Falls, Ontario (Village)
• South River, Ontario (Village)
• Sundridge, Ontario (Village)

Rainy River District

Rainy River District, Ontario

• Fort Frances, Ontario (Town)
• Rainy River, Ontario (Town)
• Alberton, Ontario (Township)
• Atikokan, Ontario (Township)
• Chapple, Ontario (Township)
• Dawson, Ontario (Township)
• Emo, Ontario (Township)
• La Vallee, Ontario (Township)
• Lake of the Woods, Ontario (Township)
• Morley, Ontario (Township)

Sudbury District

Sudbury District, Ontario

• French River, Ontario (Municipality)
• Killarney, Ontario (Municipality)
• Markstay-Warren, Ontario (Municipality)
• St. Charles, Ontario (Municipality)
• Espanola, Ontario (Town)
• Baldwin, Ontario (Township)
• Chapleau, Ontario (Township)
• Nairn and Hyman, Ontario (Township)
• Sables-Spanish Rivers, Ontario (Township)

Timiskaming District

Timiskaming District, Ontario

• Temiskaming Shores, Ontario (City)
• Charlton and Dack, Ontario (Municipality)
• Cobalt, Ontario (Town)
• Englehart, Ontario (Town)
• Kirkland Lake, Ontario (Town)
• Latchford, Ontario (Town)
• Armstrong, Ontario (Township)
• Brethour, Ontario (Township)
• Casey, Ontario (Township)
• Chamberlain, Ontario (Township)
• Coleman, Ontario (Township)
• Evanturel, Ontario (Township)
• Gauthier, Ontario (Township)
• Harley, Ontario (Township)
• Harris, Ontario (Township)
• Hilliard, Ontario (Township)
• Hudson, Ontario(Township)
• James, Ontario (Township)
• Kerns, Ontario (Township)
• Larder Lake, Ontario (Township)
• Matachewan, Ontario (Township)
• McGarry, Ontario (Township)
• Thornloe, Ontario (Village)

Thunder Bay District

Thunder Bay District, Ontario

• Thunder Bay, Ontario (City)
• Greenstone, Ontario (Municipality)
• Neebing, Ontario (Municipality)
• Oliver Paipoonge, Ontario (Municipality)
• Marathon, Ontario (Town)
• Conmee, Ontario (Township)
• Dorion, Ontario (Township)
• Gillies, Ontario (Township)
• Manitouwadge, Ontario (Township)
• Nipigon, Ontario (Township)
• O'Connor, Ontario (Township)
• Red Rock, Ontario (Township)
• Schreiber, Ontario (Township)
• Shuniah, Ontario (Municipality)
• Terrace Bay, Ontario (Township)

Single Tier Locations

Single-Tier municipalities exist throughout Ontario. These are municipalities that have separated from an Upper Tier municipality, as well as former county or regional municipalities that have amalgamated into a single-tier structure.

• Barrie, Ontario (City)
• Belleville, Ontario (City)
• Brant, Ontario (City)
• Brantford, Ontario (City)
• Brockville, Ontario (City)
• Chatham-Kent, Ontario (City)
• Cornwall, Ontario (City)
• Gananoque, Ontario (Town)
• Greater Sudbury, Ontario (City)
• Guelph, Ontario (City)
• Haldimand, Ontario (Town)
• Hamilton, Ontario (City)
• Kawartha Lakes, Ontario (City)
• Kingston, Ontario (City)
• London, Ontario (City)
• Norfolk, Ontario (Town)
• Orillia, Ontario (City)
• Ottawa, Ontario (City)
• Pelee, Ontario (Township)
• Pembroke, Ontario (City)
• Peterborough, Ontario (City)
• Prescott, Ontario (Town)
• Prince Edward, Ontario (City)
• Quinte West, Ontario (City)
• St. Marys, Ontario (Town)
• St. Thomas, Ontario (City)
• Smiths Falls, Ontario (Separated Town)
• Stratford, Ontario (City)
• Toronto, Ontario (City)
• Windsor, Ontario (City)