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SCHOOL COMMUNITY·SAN MARCOS CISD·NCES 483897004452

SAN MARCOS H S

2601 RATTLER RD, SAN MARCOS, TX 78666 · (512) 393-6805 · Hays County
GRADES 09–12HIGH13-CITYTITLE IREGULAR SCHOOL2,371 STUDENTS
Enrollment
2,371
High
DISTRICT 1,213 · STATE 796
Student : Teacher
14.8:1
160 FTE teachers
DISTRICT 14.3:1 · STATE 15.1:1
Free / Reduced Lunch
73%
1,737 students
DISTRICT 79% · 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
789
Grade 10
565
Grade 11
525
Grade 12
492
Student demographics
White
45319%
DISTRICT 18% · STATE 24%
Hispanic
1,71272%
DISTRICT 74% · STATE 54%
Black
1255%
DISTRICT 4% · STATE 13%
Asian
201%
DISTRICT 1% · STATE 6%
Two+
502%
DISTRICT 2% · STATE 3%
Native American
50%
DISTRICT 0% · STATE 0%
Pacific Islander
60%
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
1,23852%
Female
1,13348%

Discussions

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Test scores

STAAR 2023-24 . % Meets Grade Level or Above
Reading
37.0%
TX avg 51.8% . +17.0pp since 2020
Mathematics
12.0%
TX avg 42.0% . +6.0pp since 2020
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
36.3%
composite math + reading, all grades
Predicted
41.9%
based on TX schools with similar FRL share
Beats by
-5.6pp
below demographic expectation
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
2,371
+37 (+2%) vs 2017
Student : Teacher
14.8:1
was 14.7:1
% White
19%
was 19%
% Hispanic
72%
was 73%
% Black
5%
was 5%
% Asian
1%
was 1%
Source: NCES Common Core of Data

About SAN MARCOS H S

SAN MARCOS H S operates as a substantial 9-12 campus in SAN MARCOS, Texas, part of SAN MARCOS CISD. Current enrollment sits at 2,371 students spanning grades 9 through 12. By comparison, Texas's public schools average about 796 students each, so SAN MARCOS H S sits 198% above that benchmark.

SAN MARCOS H S is one of 12 schools operated by SAN MARCOS CISD, a district that works with 8,222 students overall.

On the student-mix side, SAN MARCOS H S logs that 72% of the student body identifies as Hispanic; the rest is composed of 19% White, 5% Black, 2% multiracial. That is noticeably more Hispanic than the county at large, where the share is closer to 39%.

On the income-and-resources front, SAN MARCOS H S shows 160 full-time-equivalent teachers, putting the student-to-teacher ratio at about 14.8:1. That tracks the state average closely. About 73% of enrolled students meet the income threshold for free or reduced-price lunch, often used as a Title I proxy. That share is noticeably above Hays County's rate of about 46%.

On a demographically-adjusted basis, SAN MARCOS H S sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 41.9%; this one delivers 36.3%.

In the area at large, community-level numbers for Hays County indicate the typical household earns roughly $89,097 per year, 43% of adults hold a bachelor's degree or higher, and roughly 6% of residents live below the federal poverty line. Across Hays County's 63 public schools (combined enrollment of about 46,946 students), SAN MARCOS H S is one campus in the mix.

Nearest neighbor: BOWIE EL, around 0.5 miles off. Within five miles, there are 8 other public schools. Ranking that nearby cluster on reported proficiency puts SAN MARCOS H S at 2nd of 6; the average score across the group is 32.3%.

The school occupies a city-core site.

Over the past 7-year window. Looking back 7 years, enrollment at SAN MARCOS H S has changed only slightly, going from 2,334 students in 2018 to 2,371 in 2025.

In the discussion threads here, recent activity here tends to focus on open house dates, ride-share offers, and field-trip permission slips. Posting is open to anyone connected to the school.

Hays County at a glance

View full county profile
Population
268,638
Census ACS
Median income
$89,097
Household, ACS
Bachelor's+
43%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
63
46,946 students

Quick facts

School name
SAN MARCOS H S
District
SAN MARCOS CISD
Address
2601 RATTLER RD, SAN MARCOS, TX 78666
Phone
(512) 393-6805
County
Hays County
Level
High
Grade range
09–12
Total enrollment
2,371
Teachers (FTE)
160
Student–teacher ratio
14.8:1
Free/Reduced lunch
1,737 (73%)
Locale
13-City: Small
NCES ID
483897004452
Charter school
No
Virtual school
No

Related schools

Other schools in SAN MARCOS CISD
Other schools in SAN MARCOS
Nearby schools

Frequently asked questions

About SAN MARCOS H S
How many students attend SAN MARCOS H S?
SAN MARCOS H S enrolls approximately 2,371 students in grades 09-12.
Is SAN MARCOS H S an elementary, middle, or high school?
SAN MARCOS H S is a high school covering grades 09-12.
What is the student-teacher ratio at SAN MARCOS H S?
The student-to-teacher ratio at SAN MARCOS H S is approximately 14.8:1 (160 FTE teachers).
What is the racial breakdown of students at SAN MARCOS H S?
At SAN MARCOS H S, the student body is approximately 19% White, 72% Hispanic, 5% Black, 1% Asian, 2% Two or more.
Is SAN MARCOS H S public or private?
SAN MARCOS H S is a public K-12 school, overseen by SAN MARCOS CISD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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