The Dallas County Sheriff’s Department is the chief law enforcement agency in the county. Established on March 30, 1846, we operate the seventh-largest jail in the United States with an average jail population of over 6,000 inmates and more than 2,000 employees. Unlike municipal law enforcement agencies, sheriff deputies have jurisdiction in all areas of the county, including the other 32 cities in the county.

Message from Marian Brown, Dallas County Sheriff


I am so proud to serve as your Dallas County Sheriff.

I bring thirty-six years of law enforcement knowledge and experience, thirty-two of which have been spent in various levels of police leadership: from the sergeant on the street to the lieutenant over the watch, the community relations officer at the crime watch meeting, the investigations commander on the crime scene, and the assistant chief developing the annual budget.

I grew up in Dallas County and was educated in Dallas Public Schools. I have a personal interest in Dallas County and the things that affect our community.  I am grateful to have the chance to serve in a leadership role in the place where I grew up as someone who was not as fortunate as others, but also in a place where, as an adult, I’m able to understand the desires and needs of families who have broken cycles and desire to thrive.

I look forward to continuing my service to the citizens of Dallas County.

Marian Brown

Dallas County Sheriff