Best Places to Live in Harlingen (zip 78550), Texas Zip 78552 (Harlingen, TX) Crime 78550 Zip Code (Harlingen, Texas) Profile homes, apartments Amazon.com: ZIP Code Wall Map of Harlingen, TX ZIP Code Map Harlingen, Texas ZIP Code Map Updated August 2020 Amazon.com: Harlingen, TX ZIP Code Map Laminated: Home & Kitchen Palm Valley, Texas ZIP Code Map Updated July 2020 Harlingen, Texas (TX) ~ population data, races, housing & economy Brownsville Harlingen, TX Metro Area Zip Code Wall Map Basic Style