William P. Clements Unit is a state prison in Amarillo, Texas, run by the Texas Department of Criminal Justice (TDCJ). The state classifies it as maximum security. Federal facility data from 2020 put its capacity at about 3,798 beds.
William P. Clements Unit Address and Phone
- Facility type
- State prison
- Address
- 9601 Spur 591, Amarillo, TX 79107Open in Google Maps
- Main phone
- (806) 381-7080
- Operated by
- Texas Department of Criminal Justice (TDCJ)
- County
- Potter County
How to Find an Inmate at William P. Clements Unit
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 Texas Department of Criminal Justice (TDCJ) and can change at short notice. Read the official facility page and call ahead before you travel.
Jails and Police Near William P. Clements Unit
Anyone arrested near Amarillo is booked into the county jail first; a state facility only receives people after sentencing, commitment or transfer.
Other State Prisons in Texas
Open status checked against the official tdcj.texas.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.