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SCHOOL COMMUNITY·MONTGOMERY COUNTY PUBLIC SCHOOLS·NCES 240048000918

Seneca Valley High

19401 Crystal Rock Dr, Germantown, MD 20874 · (240) 740-6400 · Montgomery County
GRADES 09–12HIGH21-SUBURBTITLE IREGULAR SCHOOL2,409 STUDENTS
C
allk12 Grade
Scored higher than 32% 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.
  • C+Beats 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
2,409
High
DISTRICT 2,003 · STATE 1,185
Student : Teacher
15.1:1
159 FTE teachers
DISTRICT 15.8:1 · STATE 15.3:1
Free / Reduced Lunch
49%
1,185 students
DISTRICT 40% · 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 974731%
Grade 1057624%
Grade 1146619%
Grade 1262026%
Student demographics
71%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 75% · STATE 73% · US 70%
White
27411%
DISTRICT 23% · STATE 31% · US 43%
Hispanic
86136%
DISTRICT 36% · STATE 24% · US 30%
Black
89237%
DISTRICT 22% · STATE 32% · US 15%
Asian
26911%
DISTRICT 14% · STATE 7% · US 6%
Two+
1054%
DISTRICT 5% · STATE 5% · US 5%
Native American
30%
DISTRICT 0% · STATE 0% · US 1%
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
1,23951%
Female
1,16548%

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Test scores

MCAP 2024-25 . % Proficient (Levels 3-4)
English Language Arts
59.3%
MD avg 50.6% . +9.3pp since 2023
Math
10.0%
MD avg 34.8% . +0.0pp since 2023

What this means: On the MCAP, Maryland's statewide test, about 59 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 9 points since 2023, while math scores have held steady.

MCAP results by year

School yearEnglish Language ArtsMath
2024-2559.3%10.0%
2023-2450.0%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
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
32.3%
composite math + reading, all grades
Predicted
45.1%
based on MD schools with similar FRL share
Beats by
-12.8pp
below demographic expectation

What this means: About 32% of students here test proficient in math and reading, compared with the roughly 45% typical for Maryland schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Maryland's top nor bottom 10%.

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 Seneca Valley High

Seneca Valley High's state test result (32.3% proficient) is higher than 3 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Seneca Valley High this school2,40949.2%32.3%
James Hubert Blake High
Silver Spring
1,96053.7%30.9%
Montgomery Blair High
Silver Spring
3,26643.6%36.4%
Paint Branch High
Burtonsville
2,03852.2%31.8%
Col. Zadok Magruder High
Rockville
1,67148.2%35.5%
Meade High
Ft Meade
2,04553.1%32.2%
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 Seneca Valley High ranks

Among high schools
MeasureThis schoolIn MarylandIn Montgomery County
State test proficiency
ranked highest first
32.3%#120 of 203#17 of 25
Math proficiency
ranked highest first
10.0%#181 of 206
▼ 6
#20 of 25
no change
Reading proficiency
ranked highest first
59.3%#102 of 206
▲ 24
#17 of 25
▲ 1
Enrollment
ranked largest first
2,409#11 of 234#5 of 26
Students per teacher
ranked fewest first
15.1:1#56 of 210#7 of 25
Diversity index
ranked most diverse first
70.7%#36 of 211#11 of 25
Free and reduced lunch
ranked highest share first
49.2%#110 of 212#9 of 25
Enrollment change since 2017-18
ranked fastest growth first
+102.9%#1 of 131#1 of 18
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
2,409
+757 (+46%) vs 2020
+96% since 1990-91, when it was 1,228
Student : Teacher
15.1:1
was 14.2:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-252,409159.415.1:149% (1,185)
2023-242,386158.815.0:148% (1,134)
2022-232,239154.614.5:157% (1,283)
2020-211,65211614.2:147% (771)
2017-181,18783.614.2:138% (453)
2015-161,1988214.6:138% (460)
2010-111,3178116.3:134% (453)
2000-011,5239416.2:112% (188)
1990-911,2287217.1:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Seneca Valley High.

Since 2017-18: students up 103% (1,187 to 2,409); teachers up 91% (83.6 to 159.4).

About Seneca Valley High

Students in Germantown, Maryland, attend Seneca Valley High, a large high school. School enrollment was 2,409 students in 2024-25, in grades 9 through 12. For comparison, high schools in Maryland average about 1,185 students.

Seneca Valley High is part of Montgomery County Public Schools, where 208 schools serve 159,181 students.

At Seneca Valley High, the largest share of students is Black, at 37%. Next come 36% Hispanic, 11% White, 11% Asian, and 4% multiracial. The county population is about 19% Black. Pick two students at random and there is a 71% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.

The school reported 159.4 full-time-equivalent teachers in 2024-25 and a ratio of 15.1:1. That is close to the 15.3:1 average for high schools in Maryland. Free or reduced-price lunch eligibility is 49%. Among public schools in Montgomery County, the average eligibility rate is 40%.

Seneca Valley High is graded C by allk12, scoring above 32% of Maryland public high schools once test results, poverty-adjusted performance, and the recent trend are combined.

Predicted from its free or reduced-price lunch share, Seneca Valley High would score about 45.1%. It scores 32.3%, 12.8 points below that figure.

Montgomery County census figures show that the median household income is $132,450, 61% of adults hold a bachelor's degree or higher, and about 5% of people live in poverty. There are 211 public schools in Montgomery County, enrolling about 159,181 students in all.

The nearest public school is S. Christa McAuliffe Elementary, at about 0.6 miles. Around the school, at least 8 other public schools are within five miles. Among the 9 closest schools with test data, this one included, Seneca Valley High ranks 9th on average proficiency.

NCES assigns Seneca Valley High the locale Suburb: Large, meaning in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

Reported enrollment: 1,652 (2020-21) and 2,409 (2024-25). These figures may describe different sets of grades.

Conversations here can range across enrollment questions, class placement, and PTA news. Reviews and ratings from people who know the school are welcome.

Montgomery County at a glance

View full county profile
Population
1,065,949
Census ACS
Median income
$132,450
Household, ACS
Bachelor's+
61%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
211
159,181 students

Quick facts

School name
Seneca Valley High
District
Montgomery County Public Schools
Address
19401 Crystal Rock Dr, Germantown, MD 20874
Phone
(240) 740-6400
County
Montgomery County
Level
High
Grade range
09–12
Total enrollment
2,409
Teachers (FTE)
159
Student–teacher ratio
15.1:1
Free and reduced lunch
1,185 (49%)
Locale
21-Suburb: Large
NCES ID
240048000918
Charter school
No
Virtual school
No

Related schools

Other schools in Montgomery County Public Schools
Other schools in Germantown
Other Seneca Valley High schools

One other US public school is named Seneca Valley High. Seneca Valley High is the largest of the 2.

Nearby schools

Frequently asked questions

About Seneca Valley High
How many students attend Seneca Valley High?
Seneca Valley High enrolls approximately 2,409 students in grades 09-12.
Is Seneca Valley High an elementary, middle, or high school?
Seneca Valley High is a high school covering grades 09-12.
How many students per teacher at Seneca Valley High?
Approximately 15.1:1 students per teacher at Seneca Valley High.
How diverse is Seneca Valley High?
Seneca Valley High reports a student body of 11% White, 36% Hispanic, 37% Black, 11% Asian, 4% Two or more.
Who oversees Seneca Valley High?
Seneca Valley High is overseen by Montgomery County Public Schools in Montgomery County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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