USPS Standard Delivery Code
Starr County →
78588 ZIP Code: San Isidro, Texas
Official postal information, geographic coordinates, USPS post office locations, and US Census Bureau demographic metrics for ZIP code 78588 in San Isidro, TX.
Neighborhoods:
Postal & Geographic Specifications USPS Data
ZIP Code 78588
Primary City San Isidro, TX
County Starr County
Area Code(s) 956
Timezone America/Chicago
Land Area 38.93 sq mi
Elevation 0 ft
Coordinates 26.7300°, -98.3900°
Demographic & Economic Profile (US Census Bureau)
American Community Survey (ACS) 5-Year Verified Metrics
Total Population 168 6 people / sq mi
Median Household Income $94,821 Per Capita: $47,410
Median Home Value $52,800 Median Rent: $0/mo
Housing Tenancy
60% Own • 40% Rent
122 Total Units Median Household Income Comparison
$94,821 (78588) vs. $74,640 (Texas State)
Metrics sourced directly from the official U.S. Census Bureau (2022 ACS 5-Year Estimates).
Verify on data.census.gov
Editor's Neighborhood Insight & Local Context
Editor's Neighborhood Insight: ZIP Code 78588 is an active delivery area in San Isidro, Texas. It is geographically situated within Starr County.
USPS Postal Services
Active RouteThe primary postal delivery jurisdiction for 78588 operates within San Isidro, Texas.
Note: Not all ZIP codes have a dedicated physical post office. A single USPS regional facility often serves multiple ZIP codes across a city or county.
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Geographic Map & Coordinates
26.7300, -98.3900Adjacent & Contiguous ZIP Codes
Nearby ZIP codes bordering 78588 in San Isidro
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