SAN MARCOS H S
Public
High Grades 9–12
Part of SAN MARCOS CISD
2601 RATTLER RD, SAN MARCOS, TX 78666 · (512) 393-6805
Community ratings
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Academic performance
Math proficiency26%
State average 36.6%
Reading / language arts31%
State average 41.8%
EDFacts via Urban Institute Education Data Portal (SY2020-21)
At a glance
2,371Students enrolled
15:1Student–teacher ratio
73%Free / reduced lunch
CitySetting
Regular SchoolSchool type
Enrollment by grade
Grade 9789
Grade 10565
Grade 11525
Grade 12492
Students
Hispanic · 72%1,712
White · 19%453
Black · 5%125
Two or more races · 2%50
Asian · 1%20
Native Hawaiian/Pacific Islander · 0%6
American Indian/Alaska Native · 0%5
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
2,381’20
2,455’21
2,536’22
2,494’23
2,371’24
Location
2601 RATTLER RD SAN MARCOS
Neighbor reviews
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School facts from the U.S. Department of Education (NCES), 2024-2025 school year. Academic scores from the EDFacts via Urban Institute Education Data Portal (SY2020-21). Community ratings and reviews reflect neighbor opinions, not an official measure of school quality.