What grades does Great Mills High serve?

Great Mills High is a High school serving students in Great Mills, MD. The school is part of the local school district.

Where is Great Mills High located?

Great Mills High is located at Great Mills, MD in a urban area.

What is the student-teacher ratio at Great Mills High?

Great Mills High has a student-teacher ratio of 19.4:1.

What schools are in Great Mills, MD?

Great Mills, MD is served by the local school district. Great Mills High is one of the High schools in the area.

MDHighCalendar available · 26 events · Auto-updating

Events confirmed from St. Mary's County Public Schools's official calendar.

Great Mills High — School Calendar 2026-27

High|Great Mills, Maryland|St. Mary's County Public Schools

Great Mills, MD 20634

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Upcoming Events

Oct

Mon

Student holidayHolidayDistrict-wide

Banks, government offices, and schools may be closed.

Oct

Wed

Two-hour early dismissalhalf_dayDistrict-wide

Review the calendar for dismissal dates and any applicable notices.

Nov

Tue

Election DayHolidayDistrict-wide

Banks, government offices, and schools may be closed.

Nov

Wed

Veterans DayHolidayDistrict-wide

Banks, government offices, and schools may be closed.

Nov

Wed

Two-hour early dismissalhalf_dayDistrict-wide

Review the calendar for dismissal dates and any applicable notices.

Nov

Wed

Thanksgiving BreakBreakDistrict-wide

Banks, government offices, and schools may be closed.

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School Profile

Grades

9–12

Enrollment

1,748

Student:Teacher

19.4:1

Locale

Suburban

District

St. Mary's County Public Schools

Econ. Disadvantaged

56.0%

Phone

(301)863-4001

School Statistics

Academics (SY 2020-21)

ELA Proficiency

55%

82th percentile in MD

Math Proficiency

42%

84th percentile in MD

Graduation Rate

86%

Chronic Absenteeism

32.2%

SY 2019-20

Programs & Activities (SY 2021-22)

AP Program

29 courses offered

393 students enrolled

Gifted & Talented

161 students enrolled

Dual Enrollment

26 students enrolled

SAT/ACT

318 test takers

Athletics

19 sports, 28 teams

755 participants

Student-Teacher Ratio: 16.9:1

Worse than average in MD

Technology & Internet Access (SY 2021-22)

1:1 Devices

Student devices available

Wi-Fi

Campus-wide wireless

Fiber Internet

High-speed connection

1,682

Connected devices

Staff & Support Services (SY 2021-22)

Teachers (FTE)

100.7

98% fully certified

Counselors

Psychologists

0.5

Nurses

School Resource Officers

Security Staff

Anti-Bullying Policy

District Finance (FY 2023)

Per-Pupil Spending

$17,088

Total current expenditure

Instruction Spending

$9,718

Per pupil, classroom only

Total Revenue/Pupil

$18,945

All funding sources

Funding Sources

Federal 11%State 45%Local 43%

District-level data from NCES F-33 Survey

Community Context

Community Need Level

Moderate

CDC/ATSDR Social Vulnerability Index 2022

Neighborhood Indicators (Census Tract)

12.5%

Below 150% poverty line

3.7%

Unemployment rate

4.0%

Uninsured residents

8.1%

No HS diploma (25+)

Special Education (IDEA)

District-level data from IDEA Part B · Students ages 3-21 served under IDEA

Total Students Served

2,162

Ages 3-21 under IDEA

School-Age (6-21)

2,036

Receiving special ed services

Est. % of Enrollment

100%

District rate, school may vary

Disability Categories (District)

Specific Learning Disability

741 (36%)

Other Health Impairment

420 (21%)

Autism

319 (16%)

Speech/Language Impairment

170 (8%)

Emotional Disturbance

116 (6%)

Intellectual Disability

97 (5%)

Source: U.S. Department of Education, IDEA Section 618 Data · District-level counts · Individual school figures may differ

Enrollment Trend (2014-2025)

1,697

Current enrollment

Stable(+1% 5yr)

Coming Up

Mon, Oct 12, 2026

Student holiday

No School - St. Mary's County Public Schools

Holiday

Wed, Oct 28, 2026

Two-hour early dismissal

Review the calendar for dismissal dates and any applicable notices.

half_day

Tue, Nov 3, 2026

Election Day

Banks, government offices, and schools may be closed.

Holiday

Full School Calendar 2026-27

Events marked District-wide apply to all schools in St. Mary's County Public Schools. Great Mills High follows the district calendar.

Date	Event	Type	Level
Mon, Sep 7, 2026	Labor DayDistrict-wide Check the calendar for holiday observance details.	Holiday	—
Wed, Sep 16, 2026	Two-hour early dismissalDistrict-wide Review the calendar for dismissal dates and any applicable notices.	half_day	—
Fri, Sep 25, 2026	Student holidayDistrict-wide No School - St. Mary's County Public Schools	Holiday	—
Mon, Oct 12, 2026	Student holidayDistrict-wide No School - St. Mary's County Public Schools	Holiday	—
Wed, Oct 28, 2026	Two-hour early dismissalDistrict-wide Review the calendar for dismissal dates and any applicable notices.	half_day	—
Tue, Nov 3, 2026	Election DayDistrict-wide Banks, government offices, and schools may be closed.	Holiday	—
Wed, Nov 11, 2026	Veterans DayDistrict-wide Check the calendar for any schedule changes related to this observance.	Holiday	—
Wed, Nov 18, 2026	Two-hour early dismissalDistrict-wide Review the calendar for dismissal dates and any applicable notices.	half_day	—
Wed, Nov 25, 2026	Thanksgiving BreakDistrict-wide Review the calendar for the full break dates.	Break	—
Wed, Dec 16, 2026	Two-hour early dismissalDistrict-wide Review the calendar for dismissal dates and any applicable notices.	half_day	—
Mon, Dec 21, 2026	Winter BreakDistrict-wide Review the calendar for the full break dates.	Break	—
Mon, Jan 18, 2027	Martin Luther King Jr. DayDistrict-wide Check the calendar for any schedule changes related to this observance.	Holiday	—
Wed, Jan 20, 2027	Two-hour early dismissalDistrict-wide Review the calendar for dismissal dates and any applicable notices.	half_day	—
Fri, Jan 29, 2027	Student holidayDistrict-wide Possible make-up day	Staff Day	—
Fri, Jan 29, 2027	Student holiday; possible make-up dayDistrict-wide No School - St. Mary's County Public Schools	Holiday	—
Mon, Feb 15, 2027	Presidents' DayDistrict-wide Possible make-up day	Holiday	—
Mon, Feb 15, 2027	Presidents' Day; possible make-up dayDistrict-wide No School - St. Mary's County Public Schools	Event	—
Wed, Feb 17, 2027	Two-hour early dismissalDistrict-wide Review the calendar for dismissal dates and any applicable notices.	half_day	—
Wed, Mar 10, 2027	Two-hour early dismissalDistrict-wide Review the calendar for dismissal dates and any applicable notices.	half_day	—
Mon, Mar 22, 2027	Spring BreakDistrict-wide Review the calendar for the full break dates.	Break	—
Wed, Apr 7, 2027	Two-hour early dismissalDistrict-wide Review the calendar for dismissal dates and any applicable notices.	half_day	—
Wed, May 26, 2027	Two-hour early dismissalDistrict-wide Review the calendar for dismissal dates and any applicable notices.	half_day	—
Mon, May 31, 2027	Memorial DayDistrict-wide Check the calendar for holiday observance details.	Holiday	—
Tue, Jun 15, 2027	Last day for prekindergartenDistrict-wide Two-hour early dismissal	Event	—
Wed, Jun 16, 2027	Last Day of SchoolDistrict-wide Review the school calendar for the final day of the academic year.	Event	—