ZIP code 78588: San Isidro, TX
78588 is a ZIP code in San Isidro, Texas, mainly in Starr County, part of the Rio Grande City-Roma, TX micro area. About 289 people live here.
- Population
- 289
- Median household income
- $94,821
- Typical home value
- $52,800ACS median value
- Median rent
- $520gross, per month
- Median age
- 41.2
- Homeowners
- 65.7%of occupied homes
Shaded: ZIP code 78588's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 78588 details
| City | San Isidro |
|---|---|
| State | Texas |
| County | Starr County |
| Metro area | Rio Grande City-Roma, TX |
| Time zone | Central Time (UTC−6), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 36.6 sq mi |
| Population density | 8 people per sq mi |
| Bachelor's degree or higher | 28.8% of adults 25+ |
| Average commute | 18.5 minutes |
| Center coordinates | 26.73968, -98.39852 |
ZIP codes near 78588
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 78536 | Delmita, TX | 7.2 mi | 371 |
| 78563 | Linn, TX | 10.0 mi | 92 |
| 78591 | Santa Elena, TX | 11.7 mi | 158 |
| 78353 | Encino, TX | 13.9 mi | 476 |
| 78541 | Edinburg, TX | 21.2 mi | 51,710 |
| 78582 | Rio Grande City, TX | 25.6 mi | 44,741 |
| 78360 | Guerra, TX | 28.0 mi | 0 |
| 78540 | Edinburg, TX | 28.4 mi | 0 |
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
Buying a home in 78588?
A typical home in ZIP code 78588 is worth about $52,800 (ACS median value). The median household here earns $94,821 a year. See what buying here would cost per month, with Texas average taxes and insurance filled in.
Monthly payment for a $52,800 homeWhat can a $94,821 income afford?Rental property numbers
About ZIP code 78588
What city is ZIP code 78588?
ZIP code 78588 is in San Isidro, TX, in Starr County.
What county is ZIP code 78588 in?
78588 is mainly in Starr County, Texas.
What is the population of ZIP code 78588?
About 289 people live in ZIP code 78588, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 78588 in?
78588 is in Central Time (UTC−6). It observes daylight saving time.