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San Isidro High School

Public Grades 9-12
755th
SchoolDigger Rank ?
of 2,009 Texas High Schools
Better than 62% of Texas high schools
Summary

San Isidro High School is a very small, rural high school in San Isidro, TX, serving just 62 students in grades 9 through 12 within the San Isidro Independent School District (Isd).

The most remarkable thing about this school is its perfect track record: for five consecutive years, it has achieved a 100% graduation rate and a 0% dropout rate. This means every single student stays on track and graduates, which is an extraordinary accomplishment. The school also excels in English Language Arts, with a perfect 100% proficiency rate on the English II Reading STAAR EOC—a full 40 percentage points above the state average. With a student-teacher ratio of just 8.7 to 1 and per-student spending of $16,180, your child will receive significant individualized attention and resources. The school has shown strong recent improvement, climbing from the 33rd percentile statewide in 2021-2022 to a projected 62nd percentile for 2025-2026. There are no other schools within 20 miles of San Isidro, so this is the only high school option in the immediate area.

While the school shines in English and Biology, Algebra I remains a persistent challenge, with proficiency rates consistently below 25% in recent years. Support for "At Risk" students has also been inconsistent, with performance varying widely from year to year. However, the school has shown a dramatic turnaround for female students, jumping from the 43rd percentile in 2023-2024 to the 97th percentile in the latest projections. Overall, San Isidro High School offers a highly supportive, small-school environment where nearly every student succeeds, though families should be aware of the math challenges and ask about specific support for students who may be struggling.

62
Students ?
8.7
Student/teacher ratio ?
$15,251
Per pupil spending ?
100%
Free/discounted lunch ?
 5175 Fm 1017
       San Isidro, TX  78588

(956) 481-3110

District: San Isidro Independent School District (Isd)


Feeder schools for San Isidro High School:

Elementary:    San Isidro Elementary
Racial breakdown:

Hispanic:
96.8%
White:
3.2%
 See top rated Texas high schools

 Compare San Isidro High School to nearby high schools!
At a glance
▬ Ranking trend: Holding steady — 62nd percentile in 2016 → 62nd in 2026
Strengths
✓Test scores above the Texas average (67% vs 62% meeting standards)
✓100% graduate within 4 years
✓Above the Texas median (62nd percentile)
Worth a look
!Some student groups rank well below the school's overall statewide standing
!Algebra I scores 40 pts below the Texas average
Students meeting standards (2025-2026) ?
This school67%
District avg67%
Texas avg62%
755th of 2,009
Texas public high schools ?
Top 38%▲ up 1 pts since 2016
See the entire ranking list of Texas High Schools →
★★★★★
SchoolDigger rating ?
615th of 951San Isidro Independent School District (Isd) among Texas districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankTexas percentileRating
202657.3755 of 200962.4%★★★☆☆
202573.7332 of 197483.2%★★★★☆
202451.7898 of 199054.9%★★★☆☆
202355.8775 of 196160.5%★★★☆☆
202233.61255 of 187633.1%★★☆☆☆
202144.91008 of 186145.8%★★☆☆☆
201957.8678 of 185763.5%★★★☆☆
201866.1421 of 179776.6%★★★★☆
201757.1594 of 177766.6%★★★☆☆
201660.2671 of 176261.9%★★★☆☆
201576.8197 of 174388.7%★★★★☆
201462.1600 of 173465.4%★★★☆☆
201361.2583 of 165264.7%★★★☆☆
201266.2391 of 160375.6%★★★★☆
201165.3591 of 167264.7%★★★☆☆
201066.1517 of 156867.0%★★★☆☆
200963.4610 of 153960.4%★★★☆☆
200874.6272 of 151082.0%★★★★☆
200775.4251 of 149783.2%★★★★☆
200673.9285 of 143080.1%★★★★☆
200588.221 of 142998.5%★★★★★
200487.712 of 142799.2%★★★★★

At Risk

YearAvg scoreStatewide rankTexas percentileRating
202212.01732 of 18375.7%☆☆☆☆☆
20215.61820 of 18290.5%☆☆☆☆☆
201866.0316 of 178482.3%★★★★☆

English Language Learner

YearAvg scoreStatewide rankTexas percentileRating
202549.4396 of 115365.7%★★★☆☆
202467.2259 of 143782.0%★★★★☆

Female

YearAvg scoreStatewide rankTexas percentileRating
202687.764 of 193696.7%★★★★★
202553.7592 of 150460.6%★★★☆☆
202441.71070 of 188043.1%★★☆☆☆
202353.9806 of 189157.4%★★★☆☆
202234.91214 of 184134.1%★★☆☆☆
202136.81174 of 181535.3%★★☆☆☆
201950.6880 of 179851.1%★★★☆☆
201866.3466 of 178173.8%★★★★☆

Hispanic

YearAvg scoreStatewide rankTexas percentileRating
202663.0494 of 186073.4%★★★★☆
202567.5286 of 145380.3%★★★★☆
202457.3559 of 180569.0%★★★☆☆
202360.6545 of 182070.1%★★★★☆
202239.01039 of 176241.0%★★☆☆☆
202149.0796 of 174354.3%★★★☆☆
201960.7499 of 171470.9%★★★★☆
201870.1311 of 169181.6%★★★★☆

Low Socio Economic Status

YearAvg scoreStatewide rankTexas percentileRating
202663.7436 of 193777.5%★★★★☆
202571.1205 of 151386.5%★★★★☆
202462.6435 of 188476.9%★★★★☆
202363.3459 of 189775.8%★★★★☆
202242.4989 of 184746.5%★★☆☆☆
202152.8730 of 184860.5%★★★☆☆
201966.3388 of 181878.7%★★★★☆
201877.7190 of 179489.4%★★★★☆

Male

YearAvg scoreStatewide rankTexas percentileRating
202680.2203 of 195489.6%★★★★☆
202587.272 of 151595.2%★★★★★
202451.9762 of 189159.7%★★★☆☆
202357.1672 of 191364.9%★★★☆☆
202231.51265 of 185331.7%★★☆☆☆
202158.3642 of 184065.1%★★★☆☆
201962.2530 of 182470.9%★★★★☆
201861.6515 of 180371.4%★★★★☆

Special Education

YearAvg scoreStatewide rankTexas percentileRating
202214.41381 of 14182.6%☆☆☆☆☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Female (2026)97th percentile+34 vs school
Male (2026)90th percentile+27 vs school
Low Socio Economic Status (2026)77th percentile+15 vs school
Hispanic (2026)73rd percentile+11 vs school
English Language Learner (2025)66th percentile-18 vs school
At Risk (2022)6th percentile-27 vs school
Special Education (2022)3rd percentile-30 vs school
By subject vs Texas (2025-2026) ?
English II Reading100%+40 vs state
Biology67%-4 vs state
U.S. History64%-6 vs state
English I Reading62%+7 vs state
Algebra I14%-40 vs state

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Frequently Asked Questions about San Isidro High School

San Isidro High School ranks 755th of 2009 Texas high schools. SchoolDigger rates this school 3 stars out of 5.

Students at San Isidro High School are 97% Hispanic, 3% White.

In the 2024-25 school year, 62 students attended San Isidro High School.

San Isidro High School is fed by the following schools:

Elementary : San Isidro Elementary

Rate San Isidro High School!



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Schools in San Isidro, TX

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Latest Texas data All new data »
2025–26 STAAR, STAAR EOC & STAAR Spanish test scoresJun 12, 2026
2021–22 through 2023–24 school spending dataJan 10, 2026
2023–24 dropout rates & graduation ratesSep 17, 2025
2024–25 STAAR EOC & STAAR Spanish test scoresJun 23, 2025


SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Texas Education Agency.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.




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