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SCHOOL COMMUNITY·MERCEDES ISD·NCES 483025003388

MERCEDES H S

1200 S FLORIDA, MERCEDES, TX 78570 · (956) 514-2100 · Hidalgo County
GRADES 09–12HIGH21-SUBURBTITLE IREGULAR SCHOOL903 STUDENTS
Enrollment
903
High
DISTRICT 340 · STATE 796
Student : Teacher
14.8:1
61 FTE teachers
DISTRICT 13.9:1 · STATE 15.1:1
Free / Reduced Lunch
92%
831 students
DISTRICT 91% · STATE 65%
Community
1
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Grade 9
275
Grade 10
212
Grade 11
204
Grade 12
212
Student demographics
White
152%
DISTRICT 2% · STATE 24%
Hispanic
88298%
DISTRICT 98% · STATE 54%
Black
20%
DISTRICT 0% · STATE 13%
Two+
20%
DISTRICT 0% · STATE 3%
Native American
10%
DISTRICT 0% · STATE 0%
Pacific Islander
10%
DISTRICT 0% · STATE 0%
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
Male
48454%
Female
41946%

Discussions

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Test scores

STAAR 2023-24 . % Meets Grade Level or Above
Reading
22.0%
TX avg 51.8% . +13.0pp since 2020
Mathematics
8.0%
TX avg 42.0% . +5.0pp since 2020

What this means: On the STAAR, Texas's statewide test, about 22 of every 100 students at this school read at grade level and about 8 of 100 do math at grade level. Across all Texas schools, those numbers are about 52 and 42. Reading scores are up about 13 points since 2020, while math scores are up about 5 points.

Source: STAAR. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
24.8%
composite math + reading, all grades
Predicted
33.7%
based on TX schools with similar FRL share
Beats by
-8.9pp
below demographic expectation

What this means: About 25% of students here test proficient in math and reading, compared with the roughly 34% typical for Texas schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Texas's top nor bottom 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 2024-25
Enrollment
903
-193 (-18%) vs 2017
Student : Teacher
14.8:1
was 12.5:1
% White
2%
was 1%
% Hispanic
98%
was 99%
% Black
0%
was 0%
% Asian
0%
was 0%
Source: NCES Common Core of Data

About MERCEDES H S

As a mid-sized four-year high school in MERCEDES, Texas, MERCEDES H S works with 903 students from grades 9 through 12, one of the schools within MERCEDES ISD.

MERCEDES ISD runs 11 schools in total, collectively educating 4,207 students. MERCEDES H S is one of those campuses.

Demographically, MERCEDES H S reports that nearly all students (98%) are Hispanic.

On the income-and-resources front, On paper, MERCEDES H S has 61 full-time-equivalent teachers, translating to a class-load average of around 14.8:1. That tracks the state average closely. Roughly 92% of students at MERCEDES H S qualify for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.

With demographic context factored in, MERCEDES H S tracks the demographic baseline. The model predicts 33.7% given the school's FRL share; actual proficiency is 24.8%.

In the broader community, the surrounding county (Hidalgo County) reports that median household earnings sit near $54,338, roughly 21% of adults have completed at least a four-year degree, and the poverty rate sits near 23%. Across Hidalgo County's 364 public schools (combined enrollment of about 212,859 students), MERCEDES H S is one campus in the mix.

TRAVIS EL is the nearest neighboring public school, about 0.6 miles from this campus. Within five miles, there are 8 other public schools. On composite proficiency, MERCEDES H S comes 4th of 5 in the immediate cluster, beneath the nearby-schools average of 29.9%.

The campus sits in an outer-ring setting.

Looking at the recent track record. Over the past 7-year window, the student count contracted 18%: 1,096 students in 2018 compared to 903 in 2025. Class-load math has widened: from 12.5:1 in 2018 to 14.8:1 in 2025.

Within the allk12 community for this school, the feed for MERCEDES H S typically covers school events, parent volunteer needs, and clubs. Members of the school community can share what they know.

Hidalgo County at a glance

View full county profile
Population
891,977
Census ACS
Median income
$54,338
Household, ACS
Bachelor's+
21%
Adults 25+
Poverty rate
23%
Below federal line
Schools in county
364
212,859 students

Quick facts

School name
MERCEDES H S
District
MERCEDES ISD
Address
1200 S FLORIDA, MERCEDES, TX 78570
Phone
(956) 514-2100
County
Hidalgo County
Level
High
Grade range
09–12
Total enrollment
903
Teachers (FTE)
61
Student–teacher ratio
14.8:1
Free/Reduced lunch
831 (92%)
Locale
21-Suburb: Large
NCES ID
483025003388
Charter school
No
Virtual school
No

Related schools

Other schools in MERCEDES ISD
Other schools in MERCEDES
Nearby schools

Frequently asked questions

About MERCEDES H S
How many students attend MERCEDES H S?
MERCEDES H S enrolls approximately 903 students in grades 09-12.
What grades does MERCEDES H S serve?
MERCEDES H S serves grades 09-12.
What is the student-teacher ratio at MERCEDES H S?
The student-to-teacher ratio at MERCEDES H S is approximately 14.8:1 (61 FTE teachers).
How diverse is MERCEDES H S?
MERCEDES H S reports a student body of 2% White, 98% Hispanic, 0% Black, 0% Two or more.
Who oversees MERCEDES H S?
MERCEDES H S is overseen by MERCEDES ISD in Hidalgo County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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