School Overview
Great Mills High School (GMHS), located in St. Mary’s County, Maryland, is a comprehensive public high school known for serving a diverse student body within the Great Mills community. As part of the St. Mary’s County Public Schools system, the institution focuses on fostering academic achievement through a traditional core curriculum, while also offering various extracurricular programs, athletic teams, and arts initiatives designed to support student development outside of the classroom.

The school is perhaps most recognized for its emphasis on specialized academic opportunities, such as its partnership with the nearby Naval Air Station Patuxent River, which influences its strong focus on STEM (Science, Technology, Engineering, and Mathematics) education. Additionally, Great Mills places a high value on school culture and community engagement, striving to provide a safe and inclusive environment where students are prepared for post-secondary success, whether they choose to pursue higher education, enter the workforce, or enlist in the military.
1,697
Total Students
88.7
Full-Time Teachers
19.1
Student/Teacher Ratio
57.5%
Free/Reduced Lunch
Student Demographics

Student Demographics Data Table

Student Demographics for Great Mills High
Demographic Student Count
White584
Hispanic237
Black642
Asian50
Two or More174
American Indian8
Pacific Islander2
  • Black
    642 (37.8%)
  • White
    584 (34.4%)
  • Hispanic
    237 (14.0%)
  • Two or More
    174 (10.3%)
  • Asian
    50 (2.9%)
  • American Indian
    8 (0.5%)
  • Pacific Islander
    2 (0.1%)
School Location
School Details
Status: Open
School Level: High School
School Type: Regular School
Charter Status:* Public Non-Charter
Virtual Instruction: Supplemental Virtual
Shared Time Status: No
District: St. Mary's County Public Schools
Phone: (301)863-4001
Grade Range: 9th - 12th
Total Students: 1,697
Full-Time Teachers (FTE): 88.7
Pupil/Teacher Ratio: 19.1
NSLP Participation:1 Yes participating without using any Provision or the CEO
Qualified Free Lunch: 836
Qualified Reduced Lunch: 139
Grades Taught
Grade 9 481
Grade 10 435
Grade 11 392
Grade 12 389

Grades Taught Data Table

Grades Taught and Student Counts for Great Mills High
Grade Student Count
Grade 9481
Grade 10435
Grade 11392
Grade 12389
Gender Ratio

Student Gender Ratio Data Table

Student Gender Ratio for Great Mills High
Gender Student Count Percentage
Female81948.3%
Male87851.7%