New Jersey State Prison is a state prison in Trenton, New Jersey, run by the New Jersey Department of Corrections. The state classifies it as maximum security. Federal facility data from 2020 put its capacity at about 1,819 beds.
New Jersey State Prison Address and Phone
- Facility type
- State prison
- Address
- 600 Cass St, Trenton, NJ 08608Open in Google Maps
- Main phone
- (609) 292-9700
- Operated by
- New Jersey Department of Corrections
- County
- Mercer County
How to Find an Inmate at New Jersey 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 New Jersey Department of Corrections and can change at short notice. Read the official facility page and call ahead before you travel.
Jails and Police Near New Jersey State Prison
Anyone arrested near Trenton is booked into the county jail first; a state facility only receives people after sentencing, commitment or transfer.
Other State Prisons in New Jersey
Open status checked against the official nj.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.