Hixson is a former unincorporated community and now part of the city of Chattanooga in Hamilton County, Tennessee, United States. It is in the northeastern part of Chattanooga and is part of the Chattanooga, TN-GA Metropolitan Statistical Area.Hixson is typically defined as the area north of Rivermont, east of the city of Red Bank and U.S. Highway 27, and south of unincorporated Middle Valley and Thrasher Pike. It is bordered to the east by the Tennessee River. Neighborhoods within Hixson include DuPont, Northgate, Big Ridge, and Valleybrook.