York Correctional Institution is a state prison in Niantic, Connecticut, run by the Connecticut Department of Correction. The state classifies it as maximum security.
York Correctional Institution Address and Phone
- Facility type
- State prison
- Address
- 201 W Main St, Niantic, CT 06357Open in Google Maps
- Main phone
- (860) 451-3001
- Operated by
- Connecticut Department of Correction
- County
- New London
How to Find an Inmate at York Correctional Institution
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 Connecticut Department of Correction and can change at short notice. Read the official facility page and call ahead before you travel.
Jails and Police Near York Correctional Institution
Anyone arrested near Niantic is booked into the county jail first; a state facility only receives people after sentencing, commitment or transfer.
Other State Prisons in Connecticut
Open status checked against the official portal.ct.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.