For the 2026 school year, there are 7 public high schools serving 5,321 students in Starr County, TX.
The top-ranked public high schools in Starr County, TX are Preparatory For Early College High School, San Isidro High School and Grulla High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Starr County, TX public high schools have an average math proficiency score of 42% (versus the Texas public high school average of 38%), and reading proficiency score of 34% (versus the 47% statewide average). High schools in Starr County have an average ranking of 3/10, which is in the bottom 50% of Texas public high schools.
Starr County, TX public high school have a Graduation Rate of 94%, which is more than the Texas average of 90%.
The school with highest graduation rate is Rio Grande City High School, with 97% graduation rate. Read more about public school graduation rate statistics in Texas or national school graduation rate statistics.
Minority enrollment is 100% of the student body (majority Hispanic), which is more than the Texas public high school average of 75% (majority Hispanic).
Best Public High Schools in Starr County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Preparatory For Early College High School
(Math: 45-49% | Reading: 70-74%)
Rank:
Rank:
8/
Top 30%10
144 Fm 3167
Rio Grande City, TX 78582
(956) 370-4254
Rio Grande City, TX 78582
(956) 370-4254
Gr: 9-12 | 430 students Student-teacher ratio: 12:1
Rank: #22.
San Isidro High School
(Math: 40-59% | Reading: 40-59%)
Rank:
Rank:
6/
Top 50%10
5175 Fm 1017
San Isidro, TX 78588
(956) 481-3110
San Isidro, TX 78588
(956) 481-3110
Gr: 9-12 | 62 students Student-teacher ratio: 9:1 Minority enrollment: 97%
Rank: #33.
Grulla High School
(Math: 75% | Reading: 20%)
Rank:
Rank:
5/
Bottom 50%10
6884 E Hwy 83
Rio Grande City, TX 78582
(956) 370-4294
Rio Grande City, TX 78582
(956) 370-4294
Gr: 8-12 | 716 students Student-teacher ratio: 13:1
Rank: #44.
Idea Rio Grande City College Preparatory
Charter School
(Math: 35% | Reading: 44%)
Rank:
Rank:
4/
Bottom 50%10
2803 W Monarch Ln
Rio Grande City, TX 78582
(956) 263-4900
Rio Grande City, TX 78582
(956) 263-4900
Gr: 6-12 | 695 students Student-teacher ratio: 15:1 Minority enrollment: 97%
Rank: #55.
Roma High School
(Math: 40% | Reading: 33%)
Rank:
Rank:
3/
Bottom 50%10
2021 N Us Hwy 83
Roma, TX 78584
(956) 849-1333
Roma, TX 78584
(956) 849-1333
Gr: 9-12 | 1,721 student Student-teacher ratio: 13:1
Rank: #66.
Rio Grande City High School
(Math: 34% | Reading: 26%)
Rank:
Rank:
2/
Bottom 50%10
5726 Fm 755
Rio Grande City, TX 78582
(956) 488-6000
Rio Grande City, TX 78582
(956) 488-6000
Gr: 9-12 | 1,670 student Student-teacher ratio: 14:1
Rank: n/an/a
Instructional & Guidance Center
Alternative School
120 Luciano Rd
Roma, TX 78584
(956) 849-8900
Roma, TX 78584
(956) 849-8900
Gr: 6-12 | 33 students Student-teacher ratio: 6:1
Frequently Asked Questions
What are the top-ranked public high schools in Starr County, TX?
The top-ranked public high schools in Starr County, TX include Preparatory For Early College High School, San Isidro High School and Grulla High School.
How many public high schools are located in Starr County?
6 public high schools are located in Starr County.
What is the racial composition of students in Starr County?
Starr County public high schools minority enrollment is 100% of the student body (majority Hispanic), which is more than the Texas public high schools average of 75% (majority Hispanic).
Which public high schools in Starr County are often viewed compared to one another?
Popular comparisons of public high schools in Starr County include: Grulla High School vs. Rio Grande City High School, Rio Grande City High School vs. Grulla High School
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