San IsidroTX
214 people live in this town, settled in 1904.
Is San Isidro a good place to live?
San Isidro’s January low is 48°F, above both the Texas town median (37°F) and the median of U.S. towns (22°F). San Isidro has fewer than 1,000 residents, too few for fair grades; the figures below are still real.
214 people, and everyone knows the way
In a town this size, neighbors are the best guide. Ask them anything.
Moving to San Isidro: who provides what
San Isidro is unincorporated, so Starr County and regional agencies provide most services.
EPA SDWIS (Oct 9, 2026) · HIFLD + EIA-861 2025 · Census 2020 ZCTAs · NCES 2024–25 · registration: vote.gov, updated Nov 18, 2024.
The data
Ordered by what stands out in San Isidro.
San Isidro has 0.3 jobs per working resident, so most workers leave town for work
Commuting out is the norm here: 1% of working residents work locally. San Isidro’s typical journey to work comes in at 18 minutes. 15% of San Isidro residents live below the poverty line. Half of commuters travel less than 38 miles.
| San Isidro | Texas towns | U.S. towns | |
|---|---|---|---|
| Average trip to work | 18 minutes | 25 minutes | 25 minutes |
| Working residents who work in town | 1.2% | 8.3% | 8% |
| Below the poverty line | 15% | 12% | 9.6% |
Where working residents work
Census LEHD 2023 · ACS
The schools San Isidro’s kids attend
Its two schools are below. Public school enrollment in San Isidro: 153 students across 2 schools.
| School | Level | Students | Letter |
|---|---|---|---|
| San Isidro ElLargest public elementary schoolGrades PK–8 | Grades PK–8 | 91 | C+ |
| San Isidro H SLargest public high schoolGrades 9–12 | Grades 9–12 | 62 | C |
NCES · EDFacts
San Isidro stands out in Texas and nationally, with the median age higher than most
Four-year graduates: 26% of adults 25 and older here, 34% across Texas.
| San Isidro | Texas towns | U.S. towns | |
|---|---|---|---|
| Median age | 51.7 years | 35.9 years | 40.5 years |
| Bachelor’s degree or more, 25+ | 26% | 23% | 29% |
Ages · share of residents
Education · adults 25 and older
Women and men · all residents
Somewhere between 47% and 69% women
The Census survey reached too few of San Isidro’s residents to say more: its margin here is ±11.1 points. Across Texas, 50.1% of residents are women.
| San Isidro | TX | U.S. | |
|---|---|---|---|
| Under 10 | 6.5% | 13.3% | 11.6% |
| 10 to 17 | 8.9% | 11.7% | 10.3% |
| 18 to 24 | 11.7% | 9.7% | 9.1% |
| 25 to 34 | 9.8% | 14.5% | 13.7% |
| 35 to 44 | 0.9% | 14.1% | 13.2% |
| 45 to 54 | 27.1% | 12.3% | 12.2% |
| 55 to 64 | 12.1% | 11.1% | 12.7% |
| 65 to 74 | 8.9% | 8.2% | 10.2% |
| 75 and older | 14% | 5.2% | 7% |
| No diploma | 20.5% | 14% | 10.4% |
| High school | 22.4% | 24.3% | 26% |
| Some college | 28.8% | 20.1% | 19.1% |
| Associate’s | 1.9% | 7.7% | 8.8% |
| Bachelor’s | 8.3% | 21.5% | 21.6% |
| Graduate | 17.9% | 12.3% | 14.1% |
U.S. Census Bureau · ACS 2020-2024 5-year estimates · in a town of 200, single groups can be off by several points
Expect four seasons and hot summers in San Isidro
In San Isidro, the peak summer temperature is 98°F.
Typical low → high °F
NOAA U.S. Climate Normals, 1991–2020
A smaller share of adults have been diagnosed with depression in San Isidro than in most of Texas or the rest of the country
13% of adults smoke cigarettes in San Isidro. Against the Texas average, San Isidro comes out ahead on 2 CDC measures out of 31, and behind on 10. Among adults in the town, 31% say their health is fair or poor and 38% get no exercise outside work.
| San Isidro | Texas towns | U.S. towns | |
|---|---|---|---|
| Diabetes (CDC PLACES) | 19% | 13% | 12% |
| No health insurance, 18–64 (CDC PLACES) | 33% | 18% | 8.1% |
| Fair or poor health (CDC PLACES) | 31% | 24% | 19% |
| Get no exercise (CDC PLACES) | 38% | 30% | 25% |
| What stands out | San Isidro | TX |
|---|---|---|
| Fewer adults who have had cancer | 4.4% | 6.1% |
| Fewer adults with asthma | 8.3% | 9.5% |
| More uninsured adults | 32.6% | 19.1% |
CDC PLACES 2025 · modeled estimates for adults · CMS · HRSA
San Isidro faces a moderate natural-hazard risk, led by cold waves
41% of San Isidro’s expected losses from natural hazards come from cold waves, followed by inland flooding at 26%. Storm and flood damage is expected to run lower than in 53% of U.S. communities. Federal disaster aid has reached households in San Isidro after 2 declared disasters, most recently in 2025.
FEMA disaster declarations and aid · FEMA National Risk Index · OpenFEMA
0% of San Isidro is conserved land
2.4 miles of trail. San Isidro’s density of trails stands at 0.8 miles per square mile.
Trails & parks © OpenStreetMap contributors · Conserved land: USGS PAD-US
Everything we know about San Isidro
Colleges nearby
None within 15 miles of San Isidro; the nearest are
About 12 of every 100 San Isidro residents are enrolled in college, against 6 across Texas.
99% of working residents leave San Isidro for work
Where San Isidro’s working residents go each day. Line width shows the share.
Census LEHD 2023
About San Isidro
CDP in Texas, United States
San Isidro is a census-designated place (CDP) in Starr County, Texas, United States. As of the 2020 census, San Isidro had a population of 187. The town is named for St. Isidore the Laborer, the patron saint of farmers. A large Southwestern Barrel Cactus growing just east of town is said to be the largest in Texas.
From Wikipedia, licensed CC BY-SA 4.0 · facts via Wikidata (CC0)
- Area
- 3.1 sq mi
- Elevation
- 282 ft
- ZIP code
- 78588, 78536
Questions about San Isidro
Short answers, built from the data on this page.
Is San Isidro, TX a good place to live?
San Isidro has fewer than 1,000 residents, too few for fair grades; the figures below are still real.