Allenwood U.S. Penitentiary

General Prison Information Official Prison Name: Allenwood U.S. Penitentiary Prison Code: ALP Prison Type: U.S. Penitentiary Region: Northeast Region State: Pennsylvania Security Level: High Contact Information Here is the street address and mailing address for Allenwood U.S. Penitentiary. Use the mailing address if you are sending a letter or package to an inmate at Allenwood […]