Sing Sing Correctional Facility is a state prison in Ossining, New York, run by the New York State Department of Corrections and Community Supervision (DOCCS). The state classifies it as maximum security. Federal facility data from 2020 put its capacity at about 1,747 beds.
Sing Sing Correctional Facility Address and Phone
- Facility type
- State prison
- Address
- 354 Hunter St, Ossining, NY 10562Open in Google Maps
- Main phone
- (914) 941-0108
- Operated by
- New York State Department of Corrections and Community Supervision (DOCCS)
- County
- Westchester County
How to Find an Inmate at Sing Sing Correctional Facility
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 York State Department of Corrections and Community Supervision (DOCCS) and can change at short notice. Read the official facility page and call ahead before you travel.
Jails and Police Near Sing Sing Correctional Facility
Anyone arrested near Ossining is booked into the county jail first; a state facility only receives people after sentencing, commitment or transfer.
Other State Prisons in New York
Open status checked against the official doccs.ny.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.