The County Jail building was originally constructed in 1833 and remained operational over a period of 168 years until it was closed in 2002. The facility housed inmates from Cornwall and across the modern day United Counties of Stormont, Dundas, and Glengarry. Men, women, and children of all ages were incarcerated in the Jail for various types of offences, including being in debt and committing murder. Over the years, five inmates were officially executed by hanging behind the Jail walls for the crimes they had been found guilty of committing; the last execution took place in 1954.

The County Jail is maintained in almost the same condition as it was upon its closure with historical artifacts and displays arranged around the building. This historical site is now considered one of the oldest public structures in Ontario, as guided tours are available to the public. Visitors are able to tour through the cell blocks, exercise yard, governors’ residence, guards’ station and more, as part of this unique experience to see what life would have been like behind the walls of the County Jail. 

Hours of Operation:

Guided tours of the Historic Jail are available in June, July and August to the public on Saturdays and Sundays from 11 a.m. to 3:15 p.m. Tours during the week may be arranged by reservation only. 


Admission price is 6 dollars per adult and 2 dollars for children fourteen and under. 

Jail Survey: 

We want to hear from you! We are looking for feedback from recent visitors to the Jail, and would like to invite anyone who has been for a tour to please complete the survey that you will find below.