Inmate Search: Federal, State & County Guide

There is no single reliable public database for every U.S. jail and prison. The correct search depends on the agency that currently holds the person, and that agency can change after booking, sentencing, transfer, or release.

Step-by-step inmate search

1. Identify the arrest, court, sentence, or last known custody location.
2. Choose federal, state, county, city, or regional custody.
3. Open the responsible official locator or information method.
4. Use the strongest available identifier and verify the returned person.
5. Check processing, release, transfer, and another jurisdiction when no result appears.

Start with the most recent confirmed event

A recent local arrest usually points to the arresting county, city jail, regional jail, or detention authority. A person already serving a state sentence normally belongs in the state Department of Corrections system. A federal sentence or confirmed BOP placement points to the Federal Bureau of Prisons locator. When the custody type is unknown, the arresting agency, court, and last known facility are better starting clues than a generic private search.

Information to prepare

Use the full legal name, likely date of birth or age, and any official identifier you already have. Depending on the jurisdiction, the identifier may be a county booking number, state DOC number, SID, DIN, AIS number, BOP Register Number, or another agency-specific ID. Do not place a county booking number into a state or federal number field. Preserve leading zeros, hyphens, and suffixes when the official form requires them.

Federal inmate search

Use the BOP inmate-search guide for supported federal incarceration records from 1982 to present. The federal locator accepts name search and specific federal number types, but it does not search state prisons or county jails. A federal defendant can also be housed temporarily in a local or contract facility before BOP placement.

State inmate search

Use the state directory to find the corrections agency or official partner for all 50 states and Washington, D.C. State coverage varies: some systems show current prisoners only, while others include releases, probation, parole, or limited history. Most state locators do not include county jail detainees.

County jail search

Use the county directory for local booking, pretrial detention, shorter sentences, regional jail placement, or people waiting for transfer. The official method may be a searchable database, current roster, recent booking list, VINE, mobile app, account portal, CAPTCHA-protected page, PDF, or public information phone.

How to confirm the correct person

Never rely on a name alone when other fields are available. Compare the booking or inmate number, date of birth, age, sex, facility, status, and booking or release information. A same-name result does not establish identity, and an arrest or booking does not establish guilt or conviction. For urgent decisions, confirm the current record with the responsible agency.

When no result appears

Check spelling, name order, punctuation, suffixes, required minimum characters, booking delay, transfer, release, city or regional custody, state commitment, and federal custody. Remove uncertain filters and try the strongest verified identifier. An absent result is not proof that the person is not in custody, because public systems can lag or cover only a limited custody category.

When to contact the agency

Use an official information number when the public tool is unavailable, the jurisdiction publishes a phone-only method, or an urgent release or transfer must be confirmed. Prepare the identifiers the agency requests, but avoid sending unnecessary personal information through private record sites or general web forms.

Search privacy and legal limits

This directory asks only for custody type, state, and county. It does not collect a person’s name, date of birth, booking number, or inmate number. It is not a background check or consumer reporting agency and may not be used for employment, housing, credit, insurance, or another FCRA-regulated decision.