San Isidro High School is a public high school located in the unincorporated community of San Isidro, Texas, USA and classified as a 1A school by the UIL. It is a part of the San Isidro Independent School District located in extreme northeastern Starr County.
Serving 62 students in grades 9-12, San Isidro High School ranks in the top 50% of all schools in Texas for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 40-59% (which is approximately equal to the Texas state average of 44%). The percentage of students achieving proficiency in reading/language arts is 40-59% (which is approximately equal to the Texas state average of 51%).
The student-teacher ratio of 9:1 is lower than the Texas state level of 14:1.
Minority enrollment is 97% of the student body (majority Hispanic), which is higher than the Texas state average of 76% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 62 students
- Student-Teacher Ratio: 9:1
- Minority Enrollment: 97%
- Graduation Rate: ≥80% (Btm 50% in TX)
- Overall Testing Rank: Top 50%
- Math Proficiency: 40-59% (Top 50%)
- Reading Proficiency: 40-59% (Btm 50%)
- Science Proficiency: 21-39% (Btm 50%)
- Source: National Center for Education Statistics (NCES), TX Dept. of Education
Top Rankings
San Isidro High School ranks among the top 20% of public schools in Texas for:
Category
Attribute
Most improved public schools
Percent Eligible For Free Lunch
Community Size
Student Attention
School Overview
San Isidro High School's student population of 62 students has declined by 11% over five school years.
The teacher population of 7 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
62 students
Total Classroom Teachers
7 teachers
Colors
Blue, Gold
School Calendar
School Rankings
San Isidro High School ranks within the top 50% of all 8,096 schools in Texas (based off of combined math and reading proficiency testing data).
The diversity score of San Isidro High School is 0.06, which is less than the diversity score at state average of 0.64. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#3466 out of 8096 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
40-59%
44%
Reading/Language Arts Test Scores (% Proficient)
40-59%
51%
Science Test Scores (% Proficient)
21-39%
46%
Student-Teacher Ratio
9:1
14:1
Hispanic
97%
54%
White
3%
24%
All Ethnic Groups
Graduation Rate
≥80%
90%
Chronically Absent Students
(22-23)11.3%
23%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
100%
56%
Eligible for Reduced Lunch (18-19)
3%
4%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), TX Dept. of Education
School Notes
- School Mascot: Tiger
Frequently Asked Questions
What is San Isidro High School's ranking?
San Isidro High School is ranked #3466 out of 8,096 schools, which ranks it among the top 50% of public schools in Texas.
What percent of students have achieved state testing proficiency in math and reading?
40-59% of students have achieved math proficiency (compared to the 44% TX state average), while 40-59% of students have achieved reading proficiency (compared to the 51% TX state average).
What is the graduation rate of San Isidro High School?
The graduation rate of San Isidro High School is 80%, which is lower than the Texas state average of 90%.
How many students attend San Isidro High School?
62 students attend San Isidro High School.
What is the racial composition of the student body?
97% of San Isidro High School students are Hispanic, and 3% of students are White.
What is the student-teacher ratio of San Isidro High School?
San Isidro High School has a student ration of 9:1, which is lower than the Texas state average of 14:1.
What grades does San Isidro High School offer ?
San Isidro High School offers enrollment in grades 9-12
What school district is San Isidro High School part of?
San Isidro High School is part of San Isidro Independent School District.
School Reviews
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