The bulletin board for America's public schools. Parents, teachers, students, and staff. One community per school.
SCHOOL COMMUNITY·CHARLES COUNTY PUBLIC SCHOOLS·NCES 240027000607

Thomas Stone High School

3785 Leonardtown Rd, Waldorf, MD 20601 · (301) 645-2601 · Charles County
GRADES 09–12HIGH22-SUBURBTITLE IREGULAR SCHOOL1,230 STUDENTS
D
allk12 Grade
Scored higher than 5% of Maryland public high schools
  • C-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • DBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • ·Three-year trend Not available for this school, so the grade uses the other parts.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Maryland public high schools

Enrollment
1,230
High
DISTRICT 1,348 · STATE 1,185
Student : Teacher
14.5:1
85 FTE teachers
DISTRICT 16.0:1 · STATE 15.3:1
Free / Reduced Lunch
56%
694 students
DISTRICT 51% · STATE 54%
Community
5
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 936129%
Grade 1031526%
Grade 1128623%
Grade 1226822%
Student demographics
54%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 61% · STATE 73% · US 70%
White
766%
DISTRICT 16% · STATE 31% · US 43%
Hispanic
27022%
DISTRICT 15% · STATE 24% · US 30%
Black
78164%
DISTRICT 58% · STATE 32% · US 15%
Asian
232%
DISTRICT 3% · STATE 7% · US 6%
Two+
746%
DISTRICT 8% · STATE 5% · US 5%
Native American
30%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
20%
DISTRICT 0% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
62651%
Female
60349%

Discussions

+ POST

Test scores

MCAP 2024-25 . % Proficient (Levels 3-4)
English Language Arts
39.8%
MD avg 50.6% . +6.4pp since 2023
Math
10.0%
MD avg 34.8% . +0.0pp since 2023

What this means: On the MCAP, Maryland's statewide test, about 40 of every 100 students at this school read and write at grade level and about 10 of 100 do math at grade level. Across all Maryland schools, those numbers are about 51 and 35. Reading and writing scores are up about 6 points since 2023, while math scores have held steady.

MCAP results by year

School yearEnglish Language ArtsMath
2024-2539.8%10.0%
2023-2433.4%10.0%
% Proficient (Levels 3-4), all students and all tested grades.
Source: MCAP. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
UNDERPERFORMING
Bottom 10% of MD schools after controlling for student poverty
Actual proficiency
23.3%
composite math + reading, all grades
Predicted
40.8%
based on MD schools with similar FRL share
Beats by
-17.5pp
below demographic expectation

What this means: About 23% of students here test proficient in math and reading, below the roughly 41% typical for Maryland schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like Thomas Stone High School

Thomas Stone High School's state test result (23.3% proficient) is higher than 1 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Thomas Stone High School this school1,23056.4%23.3%
Baltimore City College
Baltimore
1,47052.1%51.3%
Owings Mills High
Owings Mills
1,04062.5%18.5%
Westlake High School
Waldorf
1,21651.2%26.6%
St. Charles High School
Waldorf
1,61750.3%26.0%
Gwynn Park High
Brandywine
1,14747.7%24.4%
Matched among Maryland high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Thomas Stone High School ranks

Among high schools
MeasureThis schoolIn MarylandIn Charles County
State test proficiency
ranked highest first
23.3%#170 of 203#7 of 7
Math proficiency
ranked highest first
10.0%#168 of 206
▼ 11
#6 of 7
no change
Reading proficiency
ranked highest first
39.8%#167 of 206
▲ 4
#7 of 7
no change
Enrollment
ranked largest first
1,230#109 of 234#3 of 7
Students per teacher
ranked fewest first
14.5:1#41 of 210#1 of 7
Diversity index
ranked most diverse first
54.0%#113 of 211#5 of 7
Free and reduced lunch
ranked highest share first
56.4%#85 of 212#2 of 7
Enrollment change since 2017-18
ranked fastest growth first
+5.3%#94 of 131#5 of 7
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
1,230
+115 (+10%) vs 2020
-8% since 1990-91, when it was 1,332
Student : Teacher
14.5:1
was 13.1:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-251,2308514.5:156% (694)
2023-241,17384.913.8:162% (729)
2022-231,17777.915.1:161% (718)
2020-211,1158513.1:152% (577)
2017-181,1688513.7:136% (420)
2015-161,2048813.7:141% (492)
2010-111,4828517.4:128% (411)
2000-011,6489417.5:115% (255)
1990-911,3328016.6:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Thomas Stone High School.

Since 2017-18: students up 5% (1,168 to 1,230); teachers unchanged (85 to 85).

About Thomas Stone High School

Thomas Stone High School sits in Waldorf, Maryland, and is classified as a high school. The school's enrollment of 1,230 students covers grades 9 through 12.

Charles County Public Schools counts 38 schools and 28,162 students, including Thomas Stone High School.

Black students are the majority at Thomas Stone High School, with 64% of enrollment. It is also 22% Hispanic, 6% White, and 6% multiracial. Charles County's residents are about 49% Black, 14 points below the school's share. Pick two students at random and there is a 54% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.

Thomas Stone High School operates with 85 full-time-equivalent teachers, a ratio of about 14.5:1. On average, high schools in Maryland have 15.3:1, compared with 14.5:1 here. Thomas Stone High School reports 56% of students eligible for free or reduced-price meals.

The allk12 Grade for Thomas Stone High School is D. Compared with Maryland public high schools, the school scored higher than 5% on a mix of test scores, poverty-adjusted results, and recent trend.

On allk12's BeatsExpectations measure, Thomas Stone High School is among the bottom 10% of schools in Maryland. Predicted: 40.8%. Actual: 23.3%.

County data help place the school in context: in Charles County, the median household income is $122,816, about 34% of adults have at least a bachelor's degree, and roughly 5% of residents are in poverty. In all, Charles County has 40 public schools and roughly 28,162 students.

J. P. Ryon Elementary School is located about 0.5 miles from Thomas Stone High School. Around the school, at least 8 other public schools are within five miles. Of 9 schools in the immediate area with test results, Thomas Stone High School ranks 6th on average proficiency.

Thomas Stone High School has an NCES locale of Suburb: Mid-size.

Enrollment is up 10% from 2020-21, when Thomas Stone High School had 1,115 students, to 2024-25, when it had 1,230. Students per teacher rose from 13.1 in 2020-21 to 14.5 in 2024-25.

To ask about school events, clubs, and volunteer needs, start a discussion on this page. Anyone with firsthand experience at this school can post or comment.

Charles County at a glance

View full county profile
Population
170,527
Census ACS
Median income
$122,816
Household, ACS
Bachelor's+
34%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
40
28,162 students

Quick facts

School name
Thomas Stone High School
District
Charles County Public Schools
Address
3785 Leonardtown Rd, Waldorf, MD 20601
Phone
(301) 645-2601
County
Charles County
Level
High
Grade range
09–12
Total enrollment
1,230
Teachers (FTE)
85
Student–teacher ratio
14.5:1
Free and reduced lunch
694 (56%)
Locale
22-Suburb: Mid-size
NCES ID
240027000607
Charter school
No
Virtual school
No

Related schools

Other schools in Charles County Public Schools
Other schools in Waldorf
Nearby schools

Frequently asked questions

About Thomas Stone High School
How large is Thomas Stone High School?
Thomas Stone High School enrolls approximately 1,230 students in grades 09-12.
Is Thomas Stone High School an elementary, middle, or high school?
Thomas Stone High School is a high school covering grades 09-12.
How many teachers does Thomas Stone High School have?
Thomas Stone High School employs 85 FTE teachers, for a student-to-teacher ratio of 14.5:1.
What is the student diversity at Thomas Stone High School?
Student demographics at Thomas Stone High School are roughly 6% White, 22% Hispanic, 64% Black, 2% Asian, 6% Two or more.
Is Thomas Stone High School public or private?
Thomas Stone High School is a public K-12 school, overseen by Charles County Public Schools.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
+ Post