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SCHOOL COMMUNITY·NORTHSIDE ISD·NCES 483312003722

Clark High School

5150 DE ZAVALA RD, SAN ANTONIO, TX 78249 · (210) 397-5150 · Bexar County
GRADES 09–12HIGH11-CITYREGULAR SCHOOL2,750 STUDENTS
Enrollment
2,750
High
DISTRICT 1,907 · STATE 796
Student : Teacher
16.4:1
168 FTE teachers
DISTRICT 14.9:1 · STATE 15.1:1
Free / Reduced Lunch
34%
925 students
DISTRICT 54% · 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, 2024-25

GradeStudentsShare
Grade 974427%
Grade 1070025%
Grade 1169425%
Grade 1261222%
Student demographics
61%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 50% · STATE 63% · US 70%
White
61822%
DISTRICT 16% · STATE 24% · US 43%
Hispanic
1,57257%
DISTRICT 68% · STATE 54% · US 30%
Black
1957%
DISTRICT 7% · STATE 13% · US 15%
Asian
2178%
DISTRICT 4% · STATE 6% · US 6%
Two+
1395%
DISTRICT 5% · STATE 3% · US 5%
Native American
20%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
70%
DISTRICT 0% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
1,43752%
Female
1,31348%

Discussions

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Test scores

STAAR 2025-26 . % Meets Grade Level or Above
Reading
57.0%
TX avg 54.5% . +19.0pp since 2020
Mathematics
46.0%
TX avg 45.3% . +31.0pp since 2020

What this means: On the STAAR, Texas's statewide test, about 57 of every 100 students at this school read at grade level and about 46 of 100 do math at grade level. Across all Texas schools, those numbers are about 55 and 45. Reading scores are up about 19 points since 2020, while math scores are up about 31 points.

Performance levels, 2025-26

SubjectMasters Grade LevelMeets Grade LevelApproaches Grade LevelDid Not Meet Grade Level
Reading13.0%44.0%16.0%27.0%
Mathematics12.0%34.0%39.0%15.0%
Share of tested students at each STAAR level. Each student counts in one level, so a row adds to about 100%.

STAAR results by year

School yearReadingMathematics
2025-2657.0%46.0%
2024-2558.0%43.0%
2023-2464.0%51.0%
2022-2333.0%41.0%
2021-2230.0%36.0%
2020-2138.0%15.0%
% Meets Grade Level or Above, all students and all tested grades.
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
66.0%
composite math + reading, all grades
Predicted
59.3%
based on TX schools with similar FRL share
Beats by
+6.7pp
above demographic expectation

What this means: About 66% of students here test proficient in math and reading, compared with the roughly 59% 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 →

Schools most like Clark High School

Clark High School's state test result (66.0% proficient) is higher than 4 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Clark High School this school2,75033.6%66.0%
Veterans Memorial High School
CORPUS CHRISTI
2,02637.5%58.3%
Brandeis High School
SAN ANTONIO
2,65726.1%71.0%
Sotomayor High School
SAN ANTONIO
2,62730.6%65.3%
Cedar Ridge High School
ROUND ROCK
2,71332.0%59.8%
Taft High School
SAN ANTONIO
2,67033.2%59.6%
Matched among Texas high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Clark High School ranks

Among high schools
MeasureThis schoolIn TexasIn Bexar County
State test proficiency
ranked highest first
66.0%#336 of 1,385#20 of 81
Math proficiency
ranked highest first
46.0%#643 of 1,425
▼ 15
#25 of 82
▲ 6
Reading proficiency
ranked highest first
57.0%#735 of 1,425
▼ 95
#37 of 82
▲ 1
3-year test score change
ranked biggest gain first
+14.5pp#635 of 1,184#34 of 75
Enrollment
ranked largest first
2,750#119 of 2,107#6 of 128
Students per teacher
ranked fewest first
16.4:1#981 of 1,344#47 of 78
Diversity index
ranked most diverse first
60.9%#335 of 1,346#10 of 79
Free and reduced lunch
ranked highest share first
33.6%#1,309 of 1,522#73 of 90
Enrollment change since 2017-18
ranked fastest growth first
+0.2%#670 of 672#32 of 32
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
2,750
-101 (-4%) vs 2020
+3% since 1990-91, when it was 2,660
Student : Teacher
16.4:1
was 17.5:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-252,750168.216.4:134% (925)
2023-242,746161.817.0:138% (1,035)
2022-232,835163.917.3:141% (1,173)
2020-212,85116317.5:134% (961)
2017-182,744165.316.6:128% (771)
2015-162,87616617.3:131% (885)
2010-112,61415716.6:132% (836)
2000-012,78116217.2:121% (588)
1990-912,66013819.3:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Clark High School.

Since 2017-18: students unchanged (2,744 to 2,750); teachers up 2% (165.3 to 168.2).

About Clark High School

Clark High School is a high school with a street address in SAN ANTONIO, Texas. It serves 2,750 students in grades 9 through 12. The average among high schools in Texas is roughly 796 students; this school is 245% larger than that.

District-wide, NORTHSIDE ISD has 127 schools and 100,208 students.

By race and ethnicity, Clark High School is 57% Hispanic. The rest of enrollment is 22% White, 8% Asian, 7% Black, and 5% multiracial. The Hispanic share in Bexar County as a whole is similar, at about 60%. Clark High School has a diversity index of 61%, compared with 70% for all US public school students.

A ratio of 16.4:1 comes from the school's 168.2 full-time-equivalent teachers. For comparison, high schools in Texas average 15.1:1. Free or reduced-price lunch eligibility was 34% in 2024-25. Among public schools in Bexar County, the average eligibility rate is 63%.

On a poverty-adjusted basis, Clark High School falls in the middle 80% of Texas schools: 66.0% actual against 59.3% predicted.

Bexar County has these Census figures: median household income is about $72,341, a bachelor's degree or higher is held by about 32% of adults, and the poverty rate is about 11%. The public schools of Bexar County number 638 and enroll about 368,487.

The school nearest to Clark High School is Locke Hill Elementary School, at a distance of about 0.2 miles. Counting only straight-line distance, at least 8 other public schools are within five miles. Among the 6 closest schools with test data, this one included, Clark High School ranks 1st on average proficiency.

On the NCES locale scale, the school is City: Large.

Clark High School had 2,851 students in 2020-21 and 2,750 in 2024-25, a 4% decrease. The ratio of students to teachers went from 17.5:1 to 16.4:1 over the same years.

The Clark High School community page is open for posts about enrollment questions, class placement, and PTA news. Anyone with firsthand experience at this school can post or comment.

Bexar County at a glance

View full county profile
Population
2,067,341
Census ACS
Median income
$72,341
Household, ACS
Bachelor's+
32%
Adults 25+
Poverty rate
11%
Below federal line
Schools in county
638
368,487 students

Quick facts

School name
Clark High School
District
NORTHSIDE ISD
Address
5150 DE ZAVALA RD, SAN ANTONIO, TX 78249
Phone
(210) 397-5150
County
Bexar County
Level
High
Grade range
09–12
Total enrollment
2,750
Teachers (FTE)
168
Student–teacher ratio
16.4:1
Free and reduced lunch
925 (34%)
Locale
11-City: Large
NCES ID
483312003722
Charter school
No
Virtual school
No

Related schools

Other schools in NORTHSIDE ISD
Other schools in SAN ANTONIO
Other Clark High schools

2 other US public schools in 2 states are named Clark High. Clark High School is the largest of the 3.

Nearby schools

Frequently asked questions

About Clark High School
What is the total enrollment at Clark High School?
Clark High School enrolls approximately 2,750 students in grades 09-12.
Is Clark High School an elementary, middle, or high school?
Clark High School is a high school covering grades 09-12.
How many teachers does Clark High School have?
Clark High School employs 168 FTE teachers, for a student-to-teacher ratio of 16.4:1.
What is the racial breakdown of students at Clark High School?
At Clark High School, the student body is approximately 22% White, 57% Hispanic, 7% Black, 8% Asian, 5% Two or more.
Is Clark High School public or private?
Clark High School is a public K-12 school, overseen by NORTHSIDE ISD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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