Find the last 4 digits (ZIP+4) for an address in 78566

ZIP 78566, Los Fresnos, TX is filled in. Just type the street address.

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ZIP Code 78566 – Los Fresnos, TX

Los Fresnos, Texas · Cameron County · Central time

ZIP code78566
CityLos Fresnos
StateTexas
CountyCameron County
Population25,110
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area138.98 sq mi
Center (lat, long)26.1372, -97.3886

Area codes in this area

956

These are the area codes that most often serve ZIP 78566 (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

78578 Port Isabel · 8.2 mi78568 Lozano · 10.2 mi78526 Brownsville · 10.5 mi78583 Rio Hondo · 11.5 mi78597 South Padre Island · 11.7 mi78575 Olmito · 12.3 mi78523 Brownsville · 13.5 mi78521 Brownsville · 14 mi

About ZIP 78566

ZIP code 78566 is assigned to Los Fresnos, Texas. It lies in Cameron County. Its Census area covers about 138.98 square miles of land. The closest neighboring ZIP is 78578 (Port Isabel), about 8.2 miles away.

Every address in 78566 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