ZIP Code 78550 – Harlingen, TX
Harlingen, Texas · Cameron County · Central time
| ZIP code | 78550 |
|---|---|
| City | Harlingen |
| State | Texas |
| County | Cameron County |
| Population | 53,335 |
| Time zone | Central · local time |
| ZIP type | Standard (has a Census ZCTA area) |
| Land area | 94.19 sq mi |
| Center (lat, long) | 26.2557, -97.6635 |
Area codes in this area
These are the area codes that most often serve ZIP 78550 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Map
Nearby ZIP codes
About ZIP 78550
ZIP code 78550 is assigned to Harlingen, Texas. It lies in Cameron County. Its Census area covers about 94.19 square miles of land. The closest neighboring ZIP is 78551 (Harlingen), about 3.6 miles away.
Every address in 78550 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.
Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources