Maine State Prison is a state prison in Warren, Maine, run by the Maine Department of Corrections. The state classifies it as close security. Federal facility data from 2020 put its capacity at about 916 beds.
Maine State Prison Address and Phone
- Facility type
- State prison
- Address
- 807 Cushing Rd, Warren, ME 04864Open in Google Maps
- Main phone
- (207) 273-5300
- Operated by
- Maine Department of Corrections
- County
- Knox County
How to Find an Inmate at Maine State Prison
People serving state sentences are listed in the state's offender search, not on county jail rosters. Search by last and first name, or by the state inmate number if you have it; the result shows where the person is held now, which can change after a transfer.
Visiting, Mail and Phone Calls
Visiting days, visitor approval, dress rules and the mailing format for letters are set by the Maine Department of Corrections and can change at short notice. Read the official facility page and call ahead before you travel.
Jails and Police Near Maine State Prison
Anyone arrested near Warren is booked into the county jail first; a state facility only receives people after sentencing, commitment or transfer.
Other State Prisons in Maine
Open status checked against the official maine.gov facility listing in November 2026. Address and phone come from that listing or, where it shows none, from the federal HIFLD prison dataset. This page lists no inmates.