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Great Mills High

Public Grades 9-12
110th
SchoolDigger Rank ?
of 220 Maryland High Schools
Better than 50% of Maryland high schools
Summary

Great Mills High is a public high school located in Great Mills, Maryland, serving grades 9-12 with a total enrollment of 1,748 students. The school is part of the St. Mary's County Public Schools district, which is ranked 6th out of 25 districts in Maryland and has a 4-star rating from SchoolDigger.

While Great Mills High has some positive attributes, such as ranking 3rd out of 5 Maryland high schools for military-connected students, the school faces several academic challenges. Great Mills High consistently underperforms the St. Mary's County Public Schools district and the state of Maryland in MCAP test scores, with only 14.7% of students proficient or better in Mathematics and 55.9% proficient or better in English Language Arts. Additionally, the school has a lower four-year graduation rate of 90.8% compared to the state average of 84%, and a higher dropout rate of 6.4% compared to the state average of 11.7%. Great Mills High also has significantly higher chronic absenteeism rates at 28.1% compared to the state average of 42.4%.

Comparing Great Mills High to nearby schools, Chopticon High and Leonardtown High, both in the St. Mary's County Public Schools district, generally outperform Great Mills High in academic metrics. Patuxent High, located in the neighboring Calvert County Public Schools district, also has lower chronic absenteeism rates and higher graduation rates compared to Great Mills High.

1,697
Students ?
19.1
Student/teacher ratio ?
$17,379
Per pupil spending ?
57.5%
Free/discounted lunch ?
 21130 Great Mills Rd
       Great Mills, MD  20634

(301) 863-4001

District: St. Mary's County Public Schools


Feeder schools for Great Mills High:

Elementary:    George Washington Carver Elementary
    Green Holly Elementary School
    Greenview Knolls Elementary
    Lexington Park Elementary
    More...
Middle:    Spring Ridge Middle
Racial breakdown:

African American:
37.8%
White:
34.4%
Hispanic:
14.0%
more
 See top rated Maryland high schools

 Compare Great Mills High to nearby high schools!
At a glance
Ranking trend: Improving — 33rd percentile in 2013 → 50th in 2025
Strengths
Ranking is trending up — up 17 percentile points since 2013
Above the Maryland median (50th percentile)
Worth a look
!Test scores below the Maryland average (28% vs 37% meeting standards)
!Algebra I scores 14 pts below the Maryland average
Students meeting standards (2024-2025) ?
This school28%
District avg45%
Maryland avg37%
110th of 220
Maryland public high schools ?
Top 50%▼ down 5 pts since 2015
From top 45% (2015) to top 50% (2025)
See the entire ranking list of Maryland High Schools →
SchoolDigger rating ?
3rd of 3High Schools in the St. Mary's County Public Schools
6th of 25St. Mary's County Public Schools among Maryland districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankMaryland percentileRating
202539.0110 of 22050.0%★★★☆☆
202450.954 of 14663.0%★★★☆☆
202243.495 of 22557.8%★★★☆☆
201938.080 of 13842.0%★★☆☆☆
201833.9106 of 19746.2%★★☆☆☆
201753.370 of 18061.1%★★★☆☆
201653.1107 of 23354.1%★★★☆☆
201553.5106 of 23354.5%★★★☆☆
201454.7145 of 23137.2%★★☆☆☆
201340.7124 of 18533.0%★★☆☆☆
201250.6114 of 18739.0%★★☆☆☆
201154.5100 of 18345.4%★★☆☆☆
201066.596 of 22056.4%★★★☆☆
200963.1110 of 21348.4%★★☆☆☆
200859.3123 of 21442.5%★★☆☆☆
200748.0121 of 20942.1%★★☆☆☆
200652.5103 of 20449.5%★★★☆☆
200536.9135 of 20433.8%★★☆☆☆
200439.5134 of 20133.3%★★☆☆☆

Military Connected

YearAvg scoreStatewide rankMaryland percentileRating
202141.83 of 540.0%★★★★☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Military Connected (2021)40th percentile
By subject vs Maryland (2024-2025) ?
Algebra II63%+38 vs state
English Language Arts56%+5 vs state
Geometry18%-10 vs state
Mathematics15%-12 vs state
Algebra I7%-14 vs state

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Schools Near Great Mills High

Ranking:
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Frequently Asked Questions about Great Mills High

Students at Great Mills High are 38% African American, 34% White, 14% Hispanic, 10% Two or more races, 3% Asian.

Great Mills High ranks 110th of 220 Maryland high schools. SchoolDigger rates this school 3 stars out of 5.

In the 2024-25 school year, 1,697 students attended Great Mills High.


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Latest Maryland data All new data »
2024–25 school spending dataJun 13, 2026
2024–25 attendance data, dropout rates & graduation ratesJun 13, 2026
2024–25 MCAP test scoresAug 26, 2025
2023–24 school spending dataJul 30, 2025


SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Maryland State Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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