Find the last 4 digits (ZIP+4) for an address in 78588

ZIP 78588, San Isidro, TX is filled in. Just type the street address.

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ZIP Code 78588 – San Isidro, TX

San Isidro, Texas · Starr County · Central time

ZIP code78588
CitySan Isidro
StateTexas
CountyStarr County
Population289
Time zoneCentral · local time
ZIP typeStandard (has a Census ZCTA area)
Land area36.61 sq mi
Center (lat, long)26.7397, -98.3985

Area codes in this area

956

These are the area codes that most often serve ZIP 78588 (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

78536 Delmita · 7.2 mi78563 Linn · 10 mi78591 Santa Elena · 11.7 mi78353 Encino · 13.9 mi78541 Edinburg · 21.2 mi78582 Rio Grande City · 25.5 mi78360 Guerra · 28 mi78540 Edinburg · 28.3 mi

About ZIP 78588

ZIP code 78588 is assigned to San Isidro, Texas. It lies in Starr County. Its Census area covers about 36.61 square miles of land. The closest neighboring ZIP is 78536 (Delmita), about 7.2 miles away.

Every address in 78588 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