To search for an inmate, input as much known information as possible into the appropriate state's Department of Corrections website. Although the required fields and search options vary according to state, most states require at least the last name and first initial or an identification number to find an inmate.
Each state's Department of Corrections maintains its own online search database for the state's inmates. Find the appropriate state website, then fill out all known information. If you are unsure about a field, such as birth year, leave the space blank to improve your search results. If you know the inmate's state-issued identification number, this number is sufficient to find the inmate without providing the inmate's full name, birthday or other personal information.