Prisons/Jails are probably the most 'likely to be haunted' locations in the US - between the physical/mental trauma, and the feeling of 'connection' that inmates have been forced into after long incarceration it isn't that suprising.
I will throw into the mix the old Pottawattamie County Jail in Council Bluffs Iowa - it is smaller than the places that have been mentioned. Squirrel Cage Jail
Thank you for posting the link to the Squirrel Cage Jail. Being from the midwest we love seeing these remnents of time in close vacinity.