Doors Open Ontario

While this site has participated in Doors Open Ontario in the past, it is not part of the current season’s program. Please check the Home page for this year’s events and participating sites.

Historic SDG Jail Doors Open Stormont, Dundas and Glengarry

Historic SDG Jail

Historic SDG Jail

This county jail building was constructed in 1833 and remained operational until it was closed in 2002. The facility housed inmates from Cornwall and across the modern-day United Counties of Stormont, Dundas and Glengarry. The jail is home to many historical artifacts and displays; it is considered one of the oldest public structures in Ontario.

Tell us your story about this site

  • Guided tours available
  • Kid-friendly
  • Parking
  • Washrooms

Contact info

11 Water Street West
Cornwall, Ontario
Telephone: 844-814-5245


Year built: 1833
Building type: Attraction

Dates/hours open

Saturday August 18 – Sunday August 19, 2018
Saturday and Sunday: 10 a.m. to 2 p.m.

Historic SDG Jail 11 Water Street West