How to Look Up an Inmate in Dallas County: Jail Search Guide
Step-by-step instructions for using the Dallas County online inmate lookup system, what information you need (SPN, full name, DOB), what the search results mean, and what to do once you locate the defendant.
Dallas County provides a free online inmate lookup tool that allows anyone to search for a person currently held at the Lew Sterrett Justice Center (Dallas County Jail). The official search portal is available at Dallas County inmate search and operates 24 hours a day. Important: this tool only finds people held at Lew Sterrett. It does not show inmates at any Dallas County city jail — Irving City Jail, Garland Detention Center, Mesquite City Jail, Grand Prairie Detention Center, Carrollton City Jail, and the Tri-City Regional Jail in DeSoto all use separate booking systems. If your loved one was arrested by a city police department, they may still be at that city’s facility awaiting transfer to Lew Sterrett — in which case the inmate search will not return a result until after the transfer is complete. To search, you can enter the defendant’s last name and first name, or if you have it, their System Person Number (SPN)—a unique identifier assigned to every individual processed through the Dallas County criminal justice system. The search also requires the defendant’s sex and race for accurate results.
When a match is found, the search results display critical information including the defendant’s current custody status, the specific criminal charges, the bail amount set by the magistrate, the booking number, the housing tower and tank location within Lew Sterrett, and a booking photograph. If the defendant was recently arrested, their information may not appear in the system for several hours—particularly during overnight arrests or busy weekends when booking volume is high. If you cannot locate someone you believe has been arrested, you can also call the Dallas County Jail inmate information line at 214-761-9025, which operates around the clock.
Once you locate the defendant in the system and confirm that bail has been set, the next step is to contact a licensed bail bond agent. You will need the defendant’s full name exactly as it appears in the system, their date of birth, the SPN, the charges, and the bail amount for each charge. Having this information ready before you call eliminates delays and allows the agent to begin preparing paperwork immediately. For fast, reliable help locating a defendant and posting bond in Dallas County, call Act Quick Bail Bonds at (214) 744-1414.