Enrollment
62
High
DISTRICT 77 · STATE 796
SCHOOL COMMUNITY·SAN ISIDRO ISD·NCES 483891004447
SAN ISIDRO H S
5175 FM 1017, SAN ISIDRO, TX 78588 · (956) 481-3110 · Starr County
GRADES 09–12HIGH42-RURALTITLE IREGULAR SCHOOL62 STUDENTS
Student : Teacher
8.8:1
7 FTE teachers
DISTRICT 8.7:1 · STATE 15.1:1
Free / Reduced Lunch
100%
62 students
DISTRICT 98% · STATE 65%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Student demographics
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
School pathway
Feeds from
Based on grade levels within SAN ISIDRO ISD. Attendance zones can vary; confirm enrollment with the district.
Test scores
STAAR 2023-24 . % Meets Grade Level or AboveReading
74.0%
TX avg 51.8% . +74.0pp since 2021
Mathematics
15.0%
TX avg 42.0%
What this means: On the STAAR, Texas's statewide test, about 74 of every 100 students at this school read at grade level and about 15 of 100 do math at grade level. Across all Texas schools, those numbers are about 52 and 42. Reading scores are up about 74 points since 2021.
Source: STAAR. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
OUTPERFORMING
Top 10% of TX schools after controlling for student poverty
Actual proficiency
51.4%
composite math + reading, all grades
Predicted
30.2%
based on TX schools with similar FRL share
Beats by
+21.2pp
above demographic expectation
What this means: About 51% of students here test proficient in math and reading, well above the roughly 30% typical for Texas schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 21 points, placing it in Texas's top 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
7-year change
SY 2017-18 vs SY 2024-25Enrollment
62
-13 (-17%) vs 2017
Student : Teacher
8.8:1
was 6.9:1
% White
3%
was 0%
% Hispanic
97%
was 100%
% Black
0%
was 0%
% Asian
0%
was 0%
Source: NCES Common Core of Data
About SAN ISIDRO H S
SAN ISIDRO H S is one of the tiny four-year high schools in SAN ISIDRO, Texas, run under SAN ISIDRO ISD, with 62 students on its rolls from grades 9 through 12. Compared to the state average of about 796 students per school, that is 92% smaller than typical.
SAN ISIDRO H S is one of 2 schools operated by SAN ISIDRO ISD, a district that educates 153 students overall.
In terms of who attends, SAN ISIDRO H S reports that the student body is overwhelmingly Hispanic (97%). The remainder breaks down as 3% White. That mix tracks the wider county fairly closely.
On the resource side, On paper, SAN ISIDRO H S has 7 full-time-equivalent teachers, translating to a class-load average of around 8.8:1. That figure is tighter than the state norm's 15.1:1 average. About 100% of enrolled students meet the income threshold for free or reduced-price lunch, a commonly cited indicator of low-income enrollment.
After controlling for student poverty, SAN ISIDRO H S ranks in the top 10% of Texas public schools. The BeatsExpectations model, a per-state regression of composite proficiency on FRL share, predicts schools with this student profile to land around 30.2%; SAN ISIDRO H S posts 51.4%, +21.2 points above that line.
Zooming out to the county, census data for Starr County shows median household earnings sit near $37,639, about 14% of the adult population holds a bachelor's degree or above, and roughly 31% of residents live below the federal poverty line. In all, Starr County runs 29 public schools (combined enrollment of about 16,900 students), of which SAN ISIDRO H S is one.
Nearest neighbor: SAN ISIDRO EL, around 0.0 miles off. Among the 9 schools in that immediate cluster with test data (this one included), SAN ISIDRO H S ranks 2nd on composite proficiency, ahead of the local average of 36.8%.
Geographically, the school is in an outlying area.
Trend over the last 7 years. SAN ISIDRO H S's enrollment has contracted 17% since 2018, when it stood at 75 (now 62). Class-load math has rose: from 6.9:1 in 2018 to 8.8:1 in 2025.
On the community side, recent activity here tends to focus on fundraisers, lost-and-found posts, and report-card season. Contributors range from current parents to recent graduates and teachers.
Starr County at a glance
View full county profilePopulation
66,067
Census ACS
Median income
$37,639
Household, ACS
Bachelor's+
14%
Adults 25+
Poverty rate
31%
Below federal line
Schools in county
29
16,900 students
Quick facts
Related schools
Nearby schools
- SAN ISIDRO EL0.0 mi · 91
- BREWSTER EL22.6 mi · 332
- WILLIAM J CLINTON EL26.1 mi · 463
- DR JAVIER SAENZ MIDDLE26.3 mi · 601
- EVANGELINA GARZA EL26.9 mi · 384
- JUAN SEGUIN EL27.0 mi · 569
Frequently asked questions
About SAN ISIDRO H SHow large is SAN ISIDRO H S?
SAN ISIDRO H S enrolls approximately 62 students in grades 09-12.
What grades does SAN ISIDRO H S serve?
SAN ISIDRO H S serves grades 09-12.
How many teachers does SAN ISIDRO H S have?
SAN ISIDRO H S employs 7 FTE teachers, for a student-to-teacher ratio of 8.8:1.
What is the student diversity at SAN ISIDRO H S?
Student demographics at SAN ISIDRO H S are roughly 3% White, 97% Hispanic.
Who oversees SAN ISIDRO H S?
SAN ISIDRO H S is overseen by SAN ISIDRO ISD in Starr County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.