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ZIP code 78591: Santa Elena, TX

78591 is a ZIP code in Santa Elena, Texas, mainly in Starr County, part of the Rio Grande City-Roma, TX micro area. About 158 people live here.

Population
158
Median household income
$35,750
Typical home value
—
Median rent
—gross, per month
Median age
56.1
Homeowners
89.5%of occupied homes
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Shaded: ZIP code 78591's area. Click anywhere on the map to see which ZIP code it's in.

ZIP codes within 10 milesWithin 25 miles

ZIP code 78591 details

CitySanta Elena
StateTexas
CountyStarr County
Metro areaRio Grande City-Roma, TX
Time zoneCentral Time (UTC−6), observes daylight saving time
TypeStandard (delivery area)
Land area175.5 sq mi, plus 0.2 sq mi of water
Population density1 people per sq mi
Bachelor's degree or higher20% of adults 25+
Average commute26 minutes
Center coordinates26.63913, -98.55189

ZIP codes near 78591

ZIP codeCityDistancePopulation
78536Delmita, TX6.7 mi371
78588San Isidro, TX11.7 mi289
78582Rio Grande City, TX13.8 mi44,741
78563Linn, TX18.5 mi92
78541Edinburg, TX21.4 mi51,710
78595Sullivan City, TX22.4 mi6,118
78576Penitas, TX22.9 mi15,484
78360Guerra, TX23.1 mi0

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

About ZIP code 78591

What city is ZIP code 78591?

ZIP code 78591 is in Santa Elena, TX, in Starr County.

What county is ZIP code 78591 in?

78591 is mainly in Starr County, Texas.

What is the population of ZIP code 78591?

About 158 people live in ZIP code 78591, according to the American Community Survey 2020–2024 5-year estimates.

What time zone is ZIP code 78591 in?

78591 is in Central Time (UTC−6). It observes daylight saving time.