Map of Ontario | Cities, Regions & Location Guide

Map of Ontario – Cities, Regions & Location Guide

This page provides a map of Ontario along with a clear overview of its cities, regions and geographic location in east-central Canada. It is designed for education, travel planning and general reference.

Ontario is Canada’s most populous province and is known for its major cities, Great Lakes shoreline, forests and regions such as the Greater Toronto Area, Eastern Ontario and Northern Ontario.

Quick Answer:

Ontario is located in east-central Canada and includes major regions such as the Greater Toronto Area, Southwestern Ontario, Eastern Ontario and Northern Ontario. Major cities include Toronto, Ottawa, Mississauga, Brampton and Hamilton.

Interactive Ontario Map (Reference View) For navigation or live routing, use official mapping services listed below.
Tip: This map shows Ontario’s full land area, including the Great Lakes region, southern population corridor and northern forested areas.

Map data © OpenStreetMap contributors

This map highlights Ontario’s position in Canada, including its major cities, lake systems and broad regional layout.

Where Is Ontario Located?

Ontario is located in east-central Canada. It borders several Canadian provinces and territories as well as parts of the United States across the Great Lakes and international waterways.

  • North: Hudson Bay and James Bay
  • East: Quebec
  • West: Manitoba
  • South: Great Lakes and the United States

Major Regions of Ontario

Ontario is commonly described using several broad geographic and economic regions.

  • Greater Toronto Area (GTA) — includes Toronto and surrounding urban municipalities
  • Southwestern Ontario — includes London, Windsor and nearby communities
  • Eastern Ontario — includes Ottawa, Kingston and surrounding areas
  • Central Ontario — includes cottage country, lakes and smaller urban centres
  • Northern Ontario — large region with forests, mining areas and remote communities
  • Golden Horseshoe — densely populated arc around western Lake Ontario

Major Cities in Ontario

  • Toronto — largest city in Ontario and Canada
  • Ottawa — capital of Canada
  • Mississauga — major GTA city
  • Brampton — major urban city in the GTA
  • Hamilton — major city at the western end of Lake Ontario
  • London — major Southwestern Ontario city
  • Kitchener — major city in the Waterloo Region
  • Windsor — major border city opposite Detroit

Key Geographic Features

  • Great Lakes shoreline — borders Lakes Superior, Huron, Erie and Ontario
  • Canadian Shield — large rocky region across much of northern Ontario
  • Niagara Escarpment — major geological formation in southern Ontario
  • Ottawa River — forms much of the Ontario–Quebec boundary
  • Thousand Islands region — scenic St. Lawrence River area
  • Lake Simcoe and cottage country — major recreational region

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Ontario Map FAQs

  • Where is Ontario located?
    Ontario is located in east-central Canada.
  • What is the capital of Ontario?
    Toronto is the provincial capital.
  • What are the biggest cities in Ontario?
    Major cities include Toronto, Ottawa, Mississauga, Brampton and Hamilton.
  • Does Ontario border the Great Lakes?
    Yes. Ontario borders several Great Lakes, including Lakes Superior, Huron, Erie and Ontario.

This page is not affiliated with or endorsed by any government authority, mapping provider or official organisation.

Disclaimer: This page is provided for general informational purposes only. Maps are reference views and may not be complete, current, to scale or suitable for navigation, surveying, emergency use or official determinations. Borders, place names, administrative divisions, regions and geographic features may vary by source and may change over time. External links are provided for convenience only and do not constitute endorsement. No warranty is made regarding accuracy, completeness or suitability for any purpose.