Great Mills High

High school·Grades 9-12 Great Mills, Maryland·20634
Score
59.2/100
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#83
Among 202 Maryland high schools
#3
In St. Mary's County Public Schools
Top 42%
In Maryland

Score 59.2/100: better than 59% of Maryland high schools on 2025-26 state tests. Schools are only compared with others of the same type in the same state. How we score schools

Performance (state tests, 2025-26)

% proficient on state tests in Maryland, all students. Colored bars are green when the school is at or above the average for similar Maryland schools.

English language arts
55%
Similar Maryland schools ≈ 60%, better than 43% of them
401 students tested
Math
18%
Similar Maryland schools ≈ 13%, better than 76% of them
411 students tested
Science
44%
Similar Maryland schools ≈ 49%, better than 46% of them
393 students tested
All Maryland schools (ELA / math)
52% / 28%
State average across every school type, 2025-26
All 8 published results by grade and test

As published by Maryland State Department of Education. "Hidden" means the state didn't publish the result to protect student privacy.

SubjectGradeTestResultStudents tested
English language artsGrade 10MCAP English Language Arts 1055.4401
English language artsAll gradesMCAP English Language Arts All Grades55.4401
MathHigh schoolMCAP Algebra 15.6306
MathHigh schoolMCAP Algebra 279.434
MathHigh schoolMCAP Geometry39.471
MathAll gradesMCAP Mathematics All Grades17.5411
ScienceHigh schoolMCAP High School Science44393
Social studiesHigh schoolMCAP American Government30.9314

School profile

Grades
9-12
Students
1,748
Type
High school
Charter school
No
Program
Regular

Students

Enrollment
1,748
Typical high school: 1,183
Free or reduced-price lunch
56%
Typical high school: 49%

District and location

City
St. Mary's County

Contact

Address
21130 Great Mills Rd
Great Mills, MD 20634

"Typical" is the middle (median) high school in Maryland. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24, lunch eligibility 2024-25).

Nearby high schools

Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.

Location

OpenStreetMap · Google Maps

Great Mills High at a glance

Great Mills High is a public high school in Great Mills, Maryland, serving grades 9-12. It is part of St. Mary's County Public Schools. It has about 1,748 students (a typical Maryland high school has 1,183). About 56% of students are eligible for free or reduced-price lunch, compared with 49% at a typical Maryland high school, which is useful context when reading test results.

In 2025-26 state tests, 55% in English language arts (similar schools: 60%) and 18% in math (similar schools: 13%) reached the state standard (% proficient). On our score, which compares it only with other Maryland high schools, it scores 59.2 out of 100: better than 59% of them, ranking #83 of 202. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.

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Page updated 2026-10-12.