Lutz, Florida Lutz is an unincorporated census-designated place (CDP) in Hillsborough County, Florida, United States. It is fifteen miles north of Tampa. The northern part of Lutz also makes up a portion of south Pasco County. The population was 19,344 at the 2010 census. History Lutz began with the construction of a small train depot on the Tampa Northern Railroad. The area surrounding the depot officially became known as "Lutz" when the U.S. Postal Service authorized a post office. The community was named for W. P. Lutz, who was credited with bringing the railroad to town. As people moved to the rural community from Tampa, the Lutz area continued to grow until it no longer depended on the "Lutz Junction", which was demolished in the late 1960s.