Find the last 4 digits (ZIP+4) for an address in 78582

ZIP 78582, Rio Grande City, TX is filled in. Just type the street address.

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ZIP Code 78582 – Rio Grande City, TX

Rio Grande City, Texas · Starr County · Central time

ZIP code78582
CityRio Grande City
StateTexas
CountyStarr County
Population44,741
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area565.25 sq mi
Center (lat, long)26.5309, -98.7402

Area codes in this area

956

These are the area codes that most often serve ZIP 78582 (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

78591 Santa Elena · 13.8 mi78584 Roma · 15.8 mi78547 Garciasville · 15.9 mi78548 Grulla · 18.3 mi78595 Sullivan City · 19.4 mi78536 Delmita · 19.9 mi78585 Salineno · 21.3 mi78576 Penitas · 22.6 mi

About ZIP 78582

ZIP code 78582 is assigned to Rio Grande City, Texas. It lies in Starr County. Its Census area covers about 565.25 square miles of land. The closest neighboring ZIP is 78591 (Santa Elena), about 13.8 miles away.

Every address in 78582 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