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Schools›Massachusetts›Lexington
SCHOOL COMMUNITY·LEXINGTON·NCES 250684001001

Lexington High

251 Waltham Street, Lexington, MA 02421 · (781) 861-2320 · Middlesex County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL2,405 STUDENTS
A+
allk12 Grade
Scored higher than 99% of Massachusetts public high schools
  • A+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • ·Beats expectations Not available for this school, so the grade uses the other parts.
  • A-Three-year trend Change in reading and math proficiency over the last three test years.

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

Enrollment
2,405
High
DISTRICT 675 · STATE 777
Student : Teacher
11.4:1
211 FTE teachers
DISTRICT 10.0:1 · STATE 23.4:1
Free / Reduced Lunch
,
Title I proxy
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 959625%
Grade 1061325%
Grade 1160425%
Grade 1259225%
Student demographics
63%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 65% · STATE 65% · US 70%
White
89737%
DISTRICT 35% · STATE 51% · US 43%
Hispanic
1105%
DISTRICT 6% · STATE 26% · US 30%
Black
1064%
DISTRICT 5% · STATE 10% · US 15%
Asian
1,12247%
DISTRICT 46% · STATE 7% · US 6%
Two+
1607%
DISTRICT 8% · STATE 5% · US 5%
Native American
20%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
10%
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
1,22551%
Female
1,17349%

School pathway

Feeds from
Jonas Clarke Middle06–08Wm Diamond Middle06–08
Based on grade levels within Lexington. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

MCAS 2024-25 . % Meeting or Exceeding Expectations
English Language Arts
85.0%
MA avg 43.8% . -7.0pp since 2018
Math
88.0%
MA avg 42.2% . -8.0pp since 2018

What this means: On the MCAS, Massachusetts's statewide test, about 85 of every 100 students at this school read and write at grade level and about 88 of 100 do math at grade level. Across all Massachusetts schools, those numbers are about 44 and 42. Reading and writing scores are down about 7 points since 2018, while math scores are down about 8 points.

MCAS results by year

School yearEnglish Language ArtsMath
2024-2585.0%88.0%
2023-2490.0%91.0%
2022-2391.0%94.0%
2021-2288.0%86.0%
2020-2193.0%91.0%
2018-1992.0%96.0%
% Meeting or Exceeding Expectations, all students and all tested grades.
Source: MCAS. All students, all grades. See all years and grades →

Where Lexington High ranks

Among high schools
MeasureThis schoolIn MassachusettsIn Middlesex County
Math proficiency
ranked highest first
88.0%#3 of 327
▼ 1
#1 of 58
no change
Reading proficiency
ranked highest first
85.0%#5 of 326
no change
#1 of 58
▲ 2
3-year test score change
ranked biggest drop first
-0.5pp#234 of 315#43 of 58
Enrollment
ranked largest first
2,405#9 of 379#3 of 63
Students per teacher
ranked fewest first
11.4:1#175 of 325#29 of 57
Diversity index
ranked most diverse first
63.3%#44 of 325#9 of 57
Enrollment change since 2017-18
ranked fastest growth first
+8.7%#69 of 133#16 of 27
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
2,405
+144 (+6%) vs 2020
+86% since 1990-91, when it was 1,295
Student : Teacher
11.4:1
was 12.6:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-252,405210.511.4:1N/A
2023-242,318204.111.4:1N/A
2022-232,303188.112.3:1N/A
2020-212,26118012.6:1N/A
2017-182,212170.912.9:1N/A
2015-162,15417012.7:1N/A
2010-111,98315612.7:16% (114)
2000-011,659N/AN/A2% (31)
1990-911,295N/AN/AN/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Lexington High.

Since 2017-18: students up 9% (2,212 to 2,405); teachers up 23% (170.9 to 210.5).

About Lexington High

Lexington High is one of the public schools in Lexington, Massachusetts. It is a large high school. It offers grades 9 through 12 and has 2,405 students enrolled. High schools in Massachusetts have about 777 students on average; enrollment here is 210% higher.

Lexington High is one school in Lexington, a system of 10 schools with 6,748 students.

Asian students make up 47% of enrollment at Lexington High, the largest share of any group. The remaining shares are 37% White, 7% multiracial, 5% Hispanic, and 4% Black. Census estimates put the Asian share of Middlesex County's population at about 14%. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 63%.

The school's 210.5 full-time-equivalent teachers translate to a student-to-teacher ratio of 11.4:1. High schools in Massachusetts average 23.4:1, 12.0 more students per teacher than here.

Lexington High holds an A+ allk12 Grade, placing it above 99% of Massachusetts public high schools.

The school's county is Middlesex County. According to Census Bureau estimates, the median household earns about $130,847 a year, a bachelor's degree or higher is held by about 60% of adults, and the share of residents below the poverty line is 5%. Public schools in Middlesex County number 386, with about 215,896 students.

Of the public schools around it, Lexington High is closest to Bridge, about 0.7 miles away. There are at least 8 other public schools within five miles.

For locale, NCES codes Lexington High as Suburb: Large.

Enrollment was 2,405 in 2024-25. In 2020-21, it was 2,261. Staffing shifted too: the ratio moved from 12.6:1 to 11.4:1.

On allk12, people connected to Lexington High can post about special education services, counseling, and support programs. Members of the school community can share what they know.

Middlesex County at a glance

View full county profile
Population
1,638,365
Census ACS
Median income
$130,847
Household, ACS
Bachelor's+
60%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
386
215,896 students

Quick facts

School name
Lexington High
District
Lexington
Address
251 Waltham Street, Lexington, MA 02421
Phone
(781) 861-2320
County
Middlesex County
Level
High
Grade range
09–12
Total enrollment
2,405
Teachers (FTE)
211
Student–teacher ratio
11.4:1
Locale
21-Suburb: Large
NCES ID
250684001001
Charter school
No
Virtual school
No

Related schools

Other schools in Lexington
Other schools in Lexington
Other Lexington High schools

9 other US public schools in 10 states are named Lexington High. Lexington High is the 2nd largest of the 10.

Nearby schools

Frequently asked questions

About Lexington High
How large is Lexington High?
Lexington High enrolls approximately 2,405 students in grades 09-12.
What grades does Lexington High serve?
Lexington High serves grades 09-12.
What is the student-teacher ratio at Lexington High?
The student-to-teacher ratio at Lexington High is approximately 11.4:1 (211 FTE teachers).
How diverse is Lexington High?
Lexington High reports a student body of 37% White, 5% Hispanic, 4% Black, 47% Asian, 7% Two or more.
Who oversees Lexington High?
Lexington High is overseen by Lexington in Middlesex County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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