Great Mills High School

21130 Great Mills Rd
Great Mills, MD 20634
(School attendance zone shown in map)
: 
7/
10
Top 50%
Serving 1,697 students in grades 9-12, Great Mills High School ranks in the top 50% of all schools in Maryland for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 34% (which is higher than the Maryland state average of 27%). The percentage of students achieving proficiency in reading/language arts is 55% (which is higher than the Maryland state average of 45%).
The student-teacher ratio of 19:1 is higher than the Maryland state level of 14:1.
Minority enrollment is 66% of the student body (majority Black), which is lower than the Maryland state average of 69% (majority Black).

Quick Facts (26-27)

  • Grades: 9-12
  • Enrollment: 1,697 students
  • Student-Teacher Ratio: 19:1
  • Minority Enrollment: 66%
  • : 84% (Btm 50% in MD)
  • : Top 50%
  • : 34% (Top 50%)
  • : 55% (Top 50%)
  • : 35% (Top 50%)
  • : Great Mills High's attendance zone covers the entire school district in Great Mills, MD, encompassing approximately 309.5 square miles. The typical drive to the school takes about 20-30 minutes, with the average distance from the school to the edge of the zone being 12.2 miles and the furthest edge located 28.4 miles away.
  • Source: National Center for Education Statistics (NCES), MD Dept. of Education

School Overview

Great Mills High School's student population of 1,697 students has stayed relatively flat over five school years.
The teacher population of 89 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
Total Students
1,697 students

Showing 2016–2025. View full 39-year historical data

Total Classroom Teachers
89 teachers

Showing 2016–2025. View full 39-year historical data

Year Founded
1929

School Rankings

Great Mills High School ranks within the top 50% of all 1,338 schools in Maryland (based off of combined math and reading proficiency testing data).
The diversity score of Great Mills High School is 0.72, which is less than the diversity score at state average of 0.74. The school's diversity has stayed relatively flat over five school years.
This School
State Level (MD)
#442 out of 1338 schools
(Top 50%)

Showing 2013–2023. View full 14-year historical data

34%
27%

Showing 2012–2023. View full 14-year historical data

55%
45%

Showing 2011–2022. View full 13-year historical data

35%
36%
Student-Teacher Ratio
19:1
14:1

Showing 2016–2025. View full 39-year historical data

American Indian
1%
n/a
Asian
3%
7%

Showing 2016–2025. View full 37-year historical data

Hispanic
14%
24%

Showing 2016–2025. View full 36-year historical data

Black
38%
32%

Showing 2016–2025. View full 37-year historical data

White
34%
31%

Showing 2016–2025. View full 37-year historical data

Two or more races
10%
6%

Showing 2016–2025. View full 15-year historical data

All Ethnic Groups
66%
0.72

Showing 2016–2025. View full 37-year historical data

84%
85.8%

Showing 2014–2023. View full 13-year historical data

(22-23)
46.9%
32.4%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
49%
46%

Showing 2015–2025. View full 36-year historical data

Eligible for Reduced Lunch
8%
5%

Showing 2015–2025. View full 27-year historical data

School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), MD Dept. of Education

Frequently Asked Questions

What is Great Mills High School's ranking?
Great Mills High School is ranked #442 out of 1,338 schools, which ranks it among the top 50% of public schools in Maryland.
What schools are Great Mills High School often compared to?
Great Mills High Schoolis often viewed alongside schools like Leonardtown High School, Chopticon High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
34% of students have achieved math proficiency (compared to the 27% MD state average), while 55% of students have achieved reading proficiency (compared to the 45% MD state average).
What is the graduation rate of Great Mills High School?
The graduation rate of Great Mills High School is 84%, which is lower than the Maryland state average of 85.8%.
How many students attend Great Mills High School?
1,697 students attend Great Mills High School.
What is the racial composition of the student body?
38% of Great Mills High School students are Black, 34% of students are White, 14% of students are Hispanic, 10% of students are Two or more races, 3% of students are Asian, and 1% of students are American Indian.
What is the student-teacher ratio of Great Mills High School?
Great Mills High School has a student ration of 19:1, which is higher than the Maryland state average of 14:1.
What grades does Great Mills High School offer ?
Great Mills High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Great Mills High School part of?
Great Mills High School is part of St. Mary's County School District.

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Quick Facts (26-27)

  • Grades: 9-12
  • Enrollment: 1,697 students
  • Student-Teacher Ratio: 19:1
  • Minority Enrollment: 66%
  • : 84% (Btm 50%)
  • : Top 50%
  • : 34% (Top 50%)
  • : 55% (Top 50%)
  • : 35% (Top 50%)
  • : Great Mills High's attendance zone covers the entire school district in Great Mills, MD, encompassing approximately 309.5 square miles. The typical drive to the school takes about 20-30 minutes, with the average distance from the school to the edge of the zone being 12.2 miles and the furthest edge located 28.4 miles away.
  • Source: National Center for Education Statistics (NCES), MD Dept. of Education

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