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SCHOOL COMMUNITY·SINTON ISD·NCES 484035004571

Sinton High School

400 N PIRATE BLVD, SINTON, TX 78387 · (361) 364-6650 · San Patricio County
GRADES 09–12HIGH32-TOWNTITLE IREGULAR SCHOOL547 STUDENTS
Enrollment
547
High
DISTRICT 279 · STATE 796
Student : Teacher
12.7:1
43 FTE teachers
DISTRICT 11.9:1 · STATE 15.1:1
Free / Reduced Lunch
62%
339 students
DISTRICT 67% · 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 912322%
Grade 1015228%
Grade 1114026%
Grade 1213224%
Student demographics
31%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 29% · STATE 63% · US 70%
White
8816%
DISTRICT 15% · STATE 24% · US 43%
Hispanic
44682%
DISTRICT 83% · STATE 54% · US 30%
Black
41%
DISTRICT 1% · STATE 13% · US 15%
Asian
41%
DISTRICT 0% · STATE 6% · US 6%
Two+
41%
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
28552%
Female
26248%

School pathway

Feeds from
E Merle Smith Middle School06–08
Based on grade levels within SINTON ISD. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

STAAR 2025-26 . % Meets Grade Level or Above
Reading
51.0%
TX avg 54.5% . +31.0pp since 2020
Mathematics
48.0%
TX avg 45.3%

What this means: On the STAAR, Texas's statewide test, about 51 of every 100 students at this school read at grade level and about 48 of 100 do math at grade level. Across all Texas schools, those numbers are about 55 and 45. Reading scores are up about 31 points since 2020.

Performance levels, 2025-26

SubjectMasters Grade LevelMeets Grade LevelApproaches Grade LevelDid Not Meet Grade Level
Reading5.0%46.0%20.0%29.0%
Mathematics13.0%35.0%35.0%17.0%
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
2025-2651.0%48.0%
2024-2549.0%51.0%
2023-2451.0%34.0%
2022-2357.0%N/A
2020-2120.0%N/A
% 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
54.0%
composite math + reading, all grades
Predicted
47.2%
based on TX schools with similar FRL share
Beats by
+6.8pp
above demographic expectation

What this means: About 54% of students here test proficient in math and reading, compared with the roughly 47% 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 →

Where Sinton High School ranks

Among high schools
MeasureThis schoolIn TexasIn San Patricio County
State test proficiency
ranked highest first
54.0%#685 of 1,385#4 of 7
Math proficiency
ranked highest first
48.0%#588 of 1,425#5 of 7
Reading proficiency
ranked highest first
51.0%#947 of 1,425#5 of 7
Enrollment
ranked largest first
547#846 of 2,107#3 of 9
Students per teacher
ranked fewest first
12.7:1#379 of 1,344#5 of 7
Diversity index
ranked most diverse first
30.9%#1,001 of 1,346#5 of 7
Free and reduced lunch
ranked highest share first
62.0%#757 of 1,522#4 of 7
Enrollment change since 2017-18
ranked steepest decline first
-12.5%#197 of 557#2 of 6
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.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
547
-74 (-12%) vs 2020
-2% since 1990-91, when it was 561
Student : Teacher
12.7:1
was 13.8:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-255474312.7:162% (339)
2023-2460146.612.9:166% (395)
2022-2361044.813.6:167% (410)
2020-216214513.8:170% (433)
2017-1862546.713.4:172% (453)
2015-166395012.8:162% (394)
2010-115674712.1:166% (377)
2000-016325112.4:149% (310)
1990-915613715.2:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Sinton High School.

About Sinton High School

Sinton High School is a low-enrollment high school found in SINTON, Texas. Enrollment stands at 547 students, covering grades 9 through 12. The school is 31% below the average for high schools in Texas.

Besides Sinton High School, SINTON ISD runs 4 other schools. The district enrolls 1,961 students.

A large majority of enrollment at Sinton High School is Hispanic, at 82%. Other reported shares: 16% White. San Patricio County's residents are about 57% Hispanic, 25 points below the school's share. On the diversity index, which measures the chance that two random students are from different groups, Sinton High School scores 31%.

Sinton High School lists 43 full-time-equivalent teachers; that is about 12.7 students per teacher. By comparison, the average for high schools in Texas is 15.1:1. About 62% of students at Sinton High School are eligible for free or reduced-price lunch. The figure for public schools in San Patricio County is close, at 63%.

The allk12 BeatsExpectations score for Sinton High School is +6.8 points: 54.0% actual, 47.2% predicted.

Five-year Census Bureau estimates for San Patricio County show that median household income comes to about $69,704, a bachelor's degree or higher is held by about 18% of adults, and the share of residents below the poverty line is 12%. San Patricio County counts 33 public schools with about 13,920 students.

The closest school to Sinton High School is Welder Elementary School, located about 0.2 miles away. In all, 4 other public schools sit within five miles of Sinton High School. Among its closest neighbors with test data, Sinton High School is 1st of 6 on proficiency.

Its NCES locale code is Town: Distant: the school is in a town some distance from an urbanized area.

The school's student count fell 12% between the 2020-21 and 2024-25 school years. Over the same period, the student-to-teacher ratio dropped to 12.7:1, from 13.8:1.

People can post here about homework, tutoring, and testing dates and other school topics. Members of the school community can share what they know.

San Patricio County at a glance

View full county profile
Population
70,181
Census ACS
Median income
$69,704
Household, ACS
Bachelor's+
18%
Adults 25+
Poverty rate
12%
Below federal line
Schools in county
33
13,920 students

Quick facts

School name
Sinton High School
District
SINTON ISD
Address
400 N PIRATE BLVD, SINTON, TX 78387
Phone
(361) 364-6650
County
San Patricio County
Level
High
Grade range
09–12
Total enrollment
547
Teachers (FTE)
43
Student–teacher ratio
12.7:1
Free and reduced lunch
339 (62%)
Locale
32-Town: Distant
NCES ID
484035004571
Charter school
No
Virtual school
No

Related schools

Other schools in SINTON ISD
Other schools in SINTON
Nearby schools

Frequently asked questions

About Sinton High School
How many students attend Sinton High School?
Sinton High School enrolls approximately 547 students in grades 09-12.
Is Sinton High School an elementary, middle, or high school?
Sinton High School is a high school covering grades 09-12.
How many teachers does Sinton High School have?
Sinton High School employs 43 FTE teachers, for a student-to-teacher ratio of 12.7:1.
What is the student diversity at Sinton High School?
Student demographics at Sinton High School are roughly 16% White, 82% Hispanic, 1% Black, 1% Asian, 1% Two or more.
What district is Sinton High School in?
Sinton High School is part of SINTON ISD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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