Sumner County, in Middle Tennessee, is part of the Nashville metropolitan area. Sumner County localities include Gallatin, Goodlettsville, Hendersonville, White House (in part), Portland, and Millersville.- Category ID : 350365
Government site with community information and links for Sumner County, including Gallatin, Goodlettsville, Hendersonville, Millersville, Portland, Westmoreland, and White House.