Cornwall

Cornwall extends along the northern bank of the Saint Lawrence River, positioned at the intersection of Ontario, Quebec, and New York State borders.

The settlement originated in 1784 when United Empire Loyalists established a community, initially named New Johnstown, after departing from New York during the American Revolution.

The city maintains strong connections with the neighboring Mohawk Nation of Akwesasne, reflecting centuries of shared regional development and community interaction.

Located one hour from both Montreal and Ottawa, Cornwall connects to major transportation routes through Highway 401 and the regional railway system.

The Cornwall Canal, constructed between 1834 and 1842, transformed this location into an industrial center, enabling ships to navigate past the Long Sault Rapids.

Location: United Counties of Stormont, Dundas and Glengarry

Inception: 1784

Elevation above the sea: 64 m

Shares border with: South Stormont

Website: https://cornwall.ca

GPS coordinates: 45.02750,-74.74000

Latest update: June 10, 2025 07:45