School Overview
San Marcos High School, located on Rattler Road in San Marcos, Texas, serves as the primary secondary education hub for the San Marcos Consolidated Independent School District. As a large, comprehensive public high school, it offers a diverse academic curriculum that includes standard core subjects, Advanced Placement (AP) courses, and dual-credit opportunities through partnerships with local higher education institutions. The school is well-known for its vibrant "Rattler" school spirit and a wide array of extracurricular activities, ranging from competitive UIL athletics and fine arts programs to various student-led clubs and career-technical education (CTE) pathways designed to prepare students for post-secondary success.

Beyond its academic and athletic offerings, San Marcos High School plays a central role in the local community, emphasizing a culture of inclusivity and student development. The school’s administration and faculty focus on preparing a diverse student body for life after graduation, whether that involves pursuing a four-year university degree, vocational training, or direct entry into the workforce. For more detailed information regarding school policies, academic calendars, or specific department resources, families and community members are encouraged to visit their official website at [smcisd.net](http://smcisd.net).
2,536
Total Students
163.9
Full-Time Teachers
15.5
Student/Teacher Ratio
68.5%
Free/Reduced Lunch
Student Demographics

Student Demographics Data Table

Student Demographics for SAN MARCOS H S
Demographic Student Count
White520
Hispanic1,813
Black135
Asian23
Two or More36
American Indian6
Pacific Islander3
  • Hispanic
    1,813 (71.5 %)
  • White
    520 (20.5 %)
  • Black
    135 (5.3 %)
  • Two or More
    36 (1.4 %)
  • Asian
    23 (0.9 %)
  • American Indian
    6 (0.2 %)
  • Pacific Islander
    3 (0.1 %)
School Location
School Details
Status: Open
School Level: High School
School Type: Regular School
Charter Status:* Public Non-Charter
Virtual Instruction: N/A
Shared Time Status: N/A
District: SAN MARCOS CISD
Phone: (512)393-6805
Website: http://smcisd.net
Grade Range: 9th - 12th
Total Students: 2,536
Full-Time Teachers (FTE): 163.9
Pupil/Teacher Ratio: 15.5
NSLP Participation:1 Yes under Community Eligibility Option (CEO)
Qualified Free Lunch: 1,719
Qualified Reduced Lunch: 18
Grades Taught
Grade 9 886
Grade 10 646
Grade 11 549
Grade 12 455

Grades Taught Data Table

Grades Taught and Student Counts for SAN MARCOS H S
Grade Student Count
Grade 9886
Grade 10646
Grade 11549
Grade 12455
Gender Ratio

Student Gender Ratio Data Table

Student Gender Ratio for SAN MARCOS H S
Gender Student Count Percentage
Female1,23048.5%
Male1,30651.5%