For the 2026-27 school year, there are 9 public high schools serving 3,818 students in 78570, TX.
The top-ranked public high schools in 78570, TX are South Texas Isd Science Academy, South Texas Isd Health Professions and Mercedes Early College Academy. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Public high schools in zipcode 78570 have an average math proficiency score of 31% (versus the Texas public high school average of 38%), and reading proficiency score of 44% (versus the 47% statewide average). High schools in 78570, TX have an average ranking of 4/10, which is in the bottom 50% of Texas public high schools.
Public high school in zipcode 78570 have a Graduation Rate of 91%, which is more than the Texas average of 90%.
The school with highest graduation rate is Mercedes Early College Academy, with ≥95% graduation rate. Read more about public school graduation rate statistics in Texas or national school graduation rate statistics.
Minority enrollment is 95% of the student body (majority Hispanic), which is more than the Texas public high school average of 75% (majority Hispanic).
Best 78570, TX Public High Schools (2026-27)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
South Texas Isd Science Academy
Magnet School
(Math: 75-79% | Reading: 80-84%)
Rank:
Rank:
10/
Top 5%10
900 Med High Dr
Mercedes, TX 78570
(956) 565-4620
Mercedes, TX 78570
(956) 565-4620
Gr: 9-12 | 840 students Student-teacher ratio: 13:1 Minority enrollment: 92%
Rank: #22.
South Texas Isd Health Professions
Magnet School
(Math: 40-44% | Reading: 77%)
Rank:
Rank:
8/
Top 30%10
700 Med High Dr
Mercedes, TX 78570
(956) 565-2237
Mercedes, TX 78570
(956) 565-2237
Gr: 9-12 | 781 students Student-teacher ratio: 14:1 Minority enrollment: 94%
Rank: #33.
Mercedes Early College Academy
Alternative School
(Math: 35-39% | Reading: 45-49%)
Rank:
Rank:
5/
Bottom 50%10
950 W 6th St
Mercedes, TX 78570
(956) 514-5180
Mercedes, TX 78570
(956) 514-5180
Gr: 9-12 | 355 students Student-teacher ratio: 16:1 Minority enrollment: 98%
Rank: #44.
Sgt Manuel Chacon Middle School
(Math: 27% | Reading: 35%)
Rank:
Rank:
2/
Bottom 50%10
801 S Mile 1 E
Mercedes, TX 78570
(956) 514-2200
Mercedes, TX 78570
(956) 514-2200
Gr: 6-9 | 518 students Student-teacher ratio: 14:1 Minority enrollment: 98%
Rank: #55.
Triumph Public High Schools-mercedes
Alternative School
Charter School
Charter School
(Math: 11-19% | Reading: 20-29%)
Rank:
Rank:
1/
Bottom 50%10
103 E 2nd St
Mercedes, TX 78570
(956) 565-5417
Mercedes, TX 78570
(956) 565-5417
Gr: 9-12 | 109 students Student-teacher ratio: 22:1 Minority enrollment: 99%
Rank: #66.
Mercedes High School
(Math: 12% | Reading: 18%)
Rank:
Rank:
1/
Bottom 50%10
1200 S Florida
Mercedes, TX 78570
(956) 514-2100
Mercedes, TX 78570
(956) 514-2100
Gr: 9-12 | 903 students Student-teacher ratio: 15:1 Minority enrollment: 98%
Rank: #77.
Mercedes Academic Academy
Alternative School
(Math: ≤10% | Reading: ≤20%)
Rank:
Rank:
1/
Bottom 50%10
720 S Mile 1 E
Mercedes, TX 78570
(956) 514-5076
Mercedes, TX 78570
(956) 514-5076
Gr: 9-12 | 100 students Student-teacher ratio: 11:1 Minority enrollment: 98%
Rank: n/an/a
Mercedes Daep
Alternative School
720 S Mile 1 E
Mercedes, TX 78570
(956) 514-5076
Mercedes, TX 78570
(956) 514-5076
Gr: 2-12
Rank: n/an/a
100 Med High Dr
Mercedes, TX 78570
(956) 514-4201
Mercedes, TX 78570
(956) 514-4201
Gr: 6-12 | 212 students Student-teacher ratio: 13:1 Minority enrollment: 81%
78570, Texas Public Schools (Closed)
School
Location
Quick Facts
Cameron County J J A E P (Closed 2004)
Alternative School
100 Med High Dr
Mercedes, TX 78570
(956) 565-2454
Mercedes, TX 78570
(956) 565-2454
Hidalgo County J J A E P (Closed 2004)
Alternative School
100 Med High Dr
Mercedes, TX 78570
(956) 565-2454
Mercedes, TX 78570
(956) 565-2454
700 Med High Dr
Mercedes, TX 78570
(956) 565-2454
Mercedes, TX 78570
(956) 565-2454
Gr: 9-12 | 636 students Student-teacher ratio: 13:1 Minority enrollment: 89%
837 S Ohio St
Mercedes, TX 78570
(956) 514-2366
Mercedes, TX 78570
(956) 514-2366
Gr: 5-6 | 763 students Minority enrollment: 99%
950 W Sixth St
Mercedes, TX 78570
(956) 514-2344
Mercedes, TX 78570
(956) 514-2344
Gr: PK-K | 629 students Student-teacher ratio: 18:1
Santa Maria Alternative (Closed 2009)
Alternative School
326 S Texas
Mercedes, TX 78570
(956) 565-3663
Mercedes, TX 78570
(956) 565-3663
Frequently Asked Questions
What are the top-ranked public high schools in 78570, TX?
The top-ranked public high schools in 78570, TX include South Texas Isd Science Academy, South Texas Isd Health Professions and Mercedes Early College Academy.
How many public high schools are located in 78570?
9 public high schools are located in 78570.
What is the racial composition of students in 78570?
78570 public high schools minority enrollment is 95% of the student body (majority Hispanic), which is more than the Texas public high schools average of 75% (majority Hispanic).
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