Map of Cornwall

Map of Cornwall, a city on the St. Lawrence River at the southeastern tip of Ontario, near the borders of Quebec and New York State.

Last reviewed on April 27, 2026

About Cornwall

Cornwall is the largest community in Stormont, Dundas and Glengarry and a regional logistics hub due to its position on the St. Lawrence Seaway and major highways. It is also a bilingual community with significant French-speaking population.

Geography & Major Routes

Highway 401 runs through the city. The Seaway International Bridge connects Cornwall to Massena, New York via Cornwall Island, part of the Akwesasne reserve.

Cornwall Districts & Communities

Downtown Cornwall along Pitt Street, Le Village along Montreal Road, the Cornwall waterfront, the Riverdale area, and the eastern neighbourhood of Long Sault toward the rural area are notable parts of the city.

Region

Cornwall is part of Eastern Ontario, with a population of approximately 47,000. For broader context, see the Eastern Ontario regional map and the Ontario map with cities.

Related Ontario Maps

Other useful maps for trips through this part of Ontario

Eastern Ontario Map

Regional map with Ottawa, Kingston, and the St. Lawrence corridor.

Ontario Highway Map

Complete provincial highway network including the 400-series.

Ontario Cities Map

All major Ontario cities and towns on a single map.

All Ontario Cities

Full directory of city and town maps across the province.