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 Jailin-person Doors Open Cornwall and SDG Counties

  • In-person
  • Guided tours available
  • Kid-friendly
  • Parking
  • Self-guided tours available
  • Washrooms
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.

Contact info

11 Water Street West
Cornwall, Ontario
E-mail: tourism@sdgcounties.ca


Year built: 1833
Building type:AttractionHistorical landmark

Dates/hours open

Aug 21, 10:00am - Aug 22, 04:00pm

Saturday and Sunday: 10 a.m. to 4 p.m.