Doors Open Ontario

Historic SDG Jail Doors Open Cornwall and SDG Counties

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

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

Contact info

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


Year built: 1833
Building type: Attraction, Historical landmark

Dates/hours open

Saturday August 15 – Sunday August 16, 2020
Saturday and Sunday: 10 a.m. to 4 p.m.

Historic SDG Jail 11 Water Street West