Home > TX > Starr County > San Isidro > Zip 78588

Zip Code 78588 — San Isidro, TX

78588 is a ZIP Code associated with San Isidro, TX, located within Starr. The postal region supports an estimated population of 289 residents across Data Pending housing units, with a population density of 3.0 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (26.739660, -98.398520)

Data MetricLocal Statistic
Postal / Zip Code78588
Primary CitySan Isidro
State / ProvinceTX
CountyStarr
Total Population289
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density3.0 people/sq mi
TimezoneAmerica/Chicago

How 78588 Compares

MetricZIP 78588Starr CountyTX State Average
Population28965,67030,188,035
Median IncomeData PendingN/AN/A
Population Density3.0 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 78536Delmita7.2 mi371N/A
Zip 78591Santa Elena10.3 mi158N/A
Zip 78563Linn10.4 mi92N/A
Zip 78353Encino14.1 mi476N/A
Zip 78541Edinburg21.0 mi51,710N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →