Washington State Penitentiary is a state prison in Walla Walla, Washington, run by the Washington State Department of Corrections. The state classifies it as maximum security. Federal facility data from 2020 put its capacity at about 2,439 beds.
Washington State Penitentiary Address and Phone
- Facility type
- State prison
- Address
- 1313 N 13th Ave, Walla Walla, WA 99362Open in Google Maps
- Main phone
- (509) 525-3610
- Operated by
- Washington State Department of Corrections
- County
- Walla Walla County
How to Find an Inmate at Washington State Penitentiary
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 Washington State Department of Corrections and can change at short notice. Read the official facility page and call ahead before you travel.
Jails and Police Near Washington State Penitentiary
Anyone arrested near Walla Walla is booked into the county jail first; a state facility only receives people after sentencing, commitment or transfer.
Other State Prisons in Washington
Open status checked against the official doc.wa.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.