Old Idaho Penitentiary

2445 Old Penitentiary Road

The Old Idaho Penitentiary is a division of the Idaho State Historical Society. The "Old Pen" opened as a territorial prison in 1872 & closed its doors in 1973. It is now open year-round for self-guided & guided tours. Call 208-334-2844 for more details.

The Old Idaho Penitentiary opened its doors in 1872 to some of the West’s most desperate criminals.  Today, visitors can experience over 100 years of Idaho’s unique prison history with a visit to Solitary Confinement, cell blocks, and the Gallows.  The Friends of the Historical Museum and Old Idaho Penitentiary is an organization dedicated to support the Idaho State Historical Museum and the Old Idaho Penitentiary.

The Old Idaho Penitentiary features thirty historic buildings and special exhibitions including the J. Curtis Earl Memorial Exhibit of Arms and Armaments.  Events and programs provide families, school groups, and visitors an opportunity to relive the Old Pen's exciting past of daring escapes, scandals, and executions. The Old Idaho Penitentiary is located in the Old Penitentiary Historic District and is open year round.


Cinthya Rhoades

Tuesday, May 23, 2017

Great place to visit if you are into history. Lots of interesting things to see. Got there 2 hours before closing and saw most of it. Could of easily spent 3 hrs there.

Tyler Adams

Sunday, June 4, 2017

Plan on a couple hours here...pretty cool stop over that's out of the way from Downtown. While Idaho specific (obviously), this does give good perspective on what prisons were like for the time periods. © TIFA 2003

Scott A

Sunday, June 18, 2017

Well worth it. Lots of info and history. Take the guided tour. Our guide was very knowledgeable.

God's Child

Thursday, June 8, 2017

Great place to visit and experience what the prisoners had to endure to survive. So much history displayed inside. Very pretty rose gardens.


Saturday, June 24, 2017

Great way to spend a few hours with the kids. Enjoyed the history and learning about the prisoners. Beautiful flowers, to boot.