Hallmark Heights is a populated place LOCATED WITHIN the City of Valdosta. In turn, the City of Valdosta is located within Lowndes County.
Hallmark Heights is located at latitude 30.835 and longitude -83.302.
Since Hallmark Heights is located within the City of Valdosta, all of the census and demographic data for residents of Hallmark Heights are included as part of the information reported for City of Valdosta in the "Profile" tab above.