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SCHOOL COMMUNITY·SOUTHSIDE ISD·NCES 484092004652

Southside High School

19190 US-281 S #2, SAN ANTONIO, TX 78221 · (210) 882-1606 · Bexar County
GRADES 09–12HIGH41-RURALTITLE IREGULAR SCHOOL1,772 STUDENTS
C-
allk12 Grade
Scored higher than 22% of Texas public high schools
  • C-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • C+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • C-Three-year trend Change in reading and math proficiency over the last three test years.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Texas public high schools

Enrollment
1,772
High
DISTRICT 599 · STATE 796
Student : Teacher
16.9:1
105 FTE teachers
DISTRICT 13.4:1 · STATE 15.1:1
Free / Reduced Lunch
86%
1,519 students
DISTRICT 86% · 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 950729%
Grade 1049928%
Grade 1134620%
Grade 1242024%
Student demographics
15%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 15% · STATE 63% · US 70%
White
1066%
DISTRICT 6% · STATE 24% · US 43%
Hispanic
1,62892%
DISTRICT 92% · STATE 54% · US 30%
Black
231%
DISTRICT 1% · STATE 13% · US 15%
Asian
40%
DISTRICT 0% · STATE 6% · US 6%
Two+
101%
DISTRICT 1% · STATE 3% · US 5%
Native American
10%
DISTRICT 0% · STATE 0% · US 1%
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
91051%
Female
86249%

Discussions

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Test scores

STAAR 2025-26 . % Meets Grade Level or Above
Reading
44.0%
TX avg 54.5% . +22.0pp since 2020
Mathematics
23.0%
TX avg 45.3% . -2.0pp since 2020

What this means: On the STAAR, Texas's statewide test, about 44 of every 100 students at this school read at grade level and about 23 of 100 do math at grade level. Across all Texas schools, those numbers are about 55 and 45. Reading scores are up about 22 points since 2020, while math scores are down about 2 points.

Performance levels, 2025-26

SubjectMasters Grade LevelMeets Grade LevelApproaches Grade LevelDid Not Meet Grade Level
Reading5.0%39.0%20.0%36.0%
Mathematics4.0%19.0%42.0%35.0%
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
2025-2644.0%23.0%
2024-2537.0%20.0%
2023-2442.0%13.0%
2022-2331.0%23.0%
2021-2226.0%28.0%
2020-2122.0%25.0%
% 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
40.7%
composite math + reading, all grades
Predicted
37.1%
based on TX schools with similar FRL share
Beats by
+3.6pp
above demographic expectation

What this means: About 41% of students here test proficient in math and reading, compared with the roughly 37% 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 Southside High School

Southside High School's state test result (40.7% proficient) is higher than 2 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Southside High School this school1,77285.7%40.7%
Galena Park High School
GALENA PARK
1,81586.2%55.9%
Brackenridge High School
SAN ANTONIO
1,59384.7%41.7%
Jefferson High School
SAN ANTONIO
1,70687.6%37.0%
Horizon High School
EL PASO
1,46987.1%46.3%
McCollum High School
SAN ANTONIO
1,50284.6%38.7%
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 Southside High School ranks

Among high schools
MeasureThis schoolIn TexasIn Bexar County
State test proficiency
ranked highest first
40.7%#1,116 of 1,385#57 of 81
Math proficiency
ranked highest first
23.0%#1,267 of 1,425
▼ 17
#65 of 82
no change
Reading proficiency
ranked highest first
44.0%#1,149 of 1,425
▲ 67
#59 of 82
▲ 3
3-year test score change
ranked biggest gain first
+6.5pp#943 of 1,184#49 of 75
Enrollment
ranked largest first
1,772#387 of 2,107#27 of 128
Students per teacher
ranked fewest first
16.9:1#1,060 of 1,344#58 of 78
Diversity index
ranked most diverse first
15.2%#1,147 of 1,346#58 of 79
Free and reduced lunch
ranked highest share first
85.7%#287 of 1,522#21 of 90
Enrollment change since 2017-18
ranked fastest growth first
+12.5%#323 of 672#17 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
1,772
+82 (+5%) vs 2020
+146% since 1990-91, when it was 720
Student : Teacher
16.9:1
was 15.8:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-251,772104.716.9:186% (1,519)
2023-241,747109.316.0:184% (1,471)
2022-231,685100.316.8:185% (1,430)
2020-211,69010715.8:178% (1,323)
2017-181,57599.715.8:175% (1,176)
2015-161,4849915.0:175% (1,118)
2010-111,41010313.7:173% (1,031)
2000-011,1287415.2:166% (741)
1990-917204217.1:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Southside High School.

Since 2017-18: students up 13% (1,575 to 1,772); teachers up 5% (99.7 to 104.7).

About Southside High School

Located in SAN ANTONIO, Texas, Southside High School is a large high school. It offers grades 9 through 12 and has 1,772 students enrolled. High schools in Texas have about 796 students on average; enrollment here is 123% higher.

Southside High School falls under SOUTHSIDE ISD, which has 10 schools enrolling 6,091 students.

A large majority of enrollment at Southside High School is Hispanic, at 92%. It is also 6% White. Bexar County's residents are about 60% Hispanic, 32 points below the school's share. On the diversity index, which measures the chance that two random students are from different groups, Southside High School scores 15%.

Southside High School reports a ratio of 16.9 students per teacher, from 104.7 full-time-equivalent teachers. The gap from the 15.1:1 average for high schools in Texas is 1.8 students per teacher. Student poverty is often measured by lunch eligibility; at Southside High School, 86% qualify for free or reduced-price lunch. That is 23 points above the 63% average for public schools in Bexar County.

Among Texas public high schools, Southside High School outscored 22%, which works out to a C- on the allk12 Grade.

The BeatsExpectations prediction for Southside High School is 37.1%, and its average proficiency rate across its state test results is 40.7%.

In Bexar County, home to about 2,067,341 people, the median household earns about $72,341 a year, roughly 32% of adults have a four-year degree or more, and about 11% of residents live below the federal poverty line. Public schools in Bexar County number 638, with about 368,487 students.

A public school about 0.1 miles away, W M Pearce Primary School, is the closest to Southside High School. In all, at least 8 other public schools sit within five miles of Southside High School. In a group of 7 nearby schools with scores, Southside High School ranks 6th on average proficiency.

For locale, NCES codes Southside High School as Rural: Fringe.

By 2024-25, enrollment had risen to 1,772, from 1,690 in 2020-21. The ratio of students to teachers went from 15.8:1 to 16.9:1 over the same years.

This page is a place to ask questions and share updates about open houses, carpools, and field trips at Southside High School. Members of the school community can share what they know.

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
Southside High School
District
SOUTHSIDE ISD
Address
19190 US-281 S #2, SAN ANTONIO, TX 78221
Phone
(210) 882-1606
County
Bexar County
Level
High
Grade range
09–12
Total enrollment
1,772
Teachers (FTE)
105
Student–teacher ratio
16.9:1
Free and reduced lunch
1,519 (86%)
Locale
41-Rural: Fringe
NCES ID
484092004652
Charter school
No
Virtual school
No

Related schools

Other schools in SOUTHSIDE ISD
Other schools in SAN ANTONIO
Other Southside High schools

6 other US public schools in 6 states are named Southside High. Southside High School is the 3rd largest of the 7.

Nearby schools

Frequently asked questions

About Southside High School
How many students attend Southside High School?
Southside High School enrolls approximately 1,772 students in grades 09-12.
Is Southside High School an elementary, middle, or high school?
Southside High School is a high school covering grades 09-12.
What is the student-teacher ratio at Southside High School?
The student-to-teacher ratio at Southside High School is approximately 16.9:1 (105 FTE teachers).
What is the student diversity at Southside High School?
Student demographics at Southside High School are roughly 6% White, 92% Hispanic, 1% Black, 0% Asian, 1% Two or more.
Who oversees Southside High School?
Southside High School is overseen by SOUTHSIDE ISD in Bexar County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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