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SCHOOL COMMUNITY·SCHOOL DISTRICT OF THE CHATHAMS·NCES 340000406014

Chatham High School

255 LAFAYETTE AVENUE, CHATHAM, NJ 07928 · (973) 457-2505 · Morris County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,205 STUDENTS
A-
allk12 Grade
Scored higher than 83% of New Jersey public high schools
  • ATest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • B+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 New Jersey public high schools

Enrollment
1,205
High
DISTRICT 591 · STATE 929
Student : Teacher
12.1:1
100 FTE teachers
DISTRICT 10.6:1 · STATE 12.7:1
Free / Reduced Lunch
2%
29 students
DISTRICT 3% · STATE 41%
Community
1
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 928223%
Grade 1031226%
Grade 1129825%
Grade 1231326%
Student demographics
46%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 50% · STATE 71% · US 70%
White
86772%
DISTRICT 69% · STATE 37% · US 43%
Hispanic
867%
DISTRICT 7% · STATE 35% · US 30%
Black
181%
DISTRICT 2% · STATE 14% · US 15%
Asian
16113%
DISTRICT 16% · STATE 10% · US 6%
Two+
726%
DISTRICT 7% · STATE 3% · US 5%
Native American
10%
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
61851%
Female
58749%

School pathway

Feeds from
Chatham Middle School06–08
Based on grade levels within School District of the Chathams. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

NJSLA 2024-25 . % Meeting or Exceeding Expectations
English Language Arts
70.4%
NJ avg 53.1% . -6.9pp since 2023
Math
36.6%
NJ avg 41.6% . -28.0pp since 2023

What this means: On the NJSLA, New Jersey's statewide test, about 70 of every 100 students at this school read and write at grade level and about 37 of 100 do math at grade level. Across all New Jersey schools, those numbers are about 53 and 42. Reading and writing scores are down about 7 points since 2023, while math scores are down about 28 points.

NJSLA results by year

School yearEnglish Language ArtsMath
2024-2570.4%36.6%
2023-2477.3%64.6%
% Meeting or Exceeding Expectations, all students and all tested grades.
Source: NJSLA. 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
64.3%
composite math + reading, all grades
Predicted
64.8%
based on NJ schools with similar FRL share
Beats by
-0.6pp
below demographic expectation

What this means: About 64% of students here test proficient in math and reading, compared with the roughly 65% typical for New Jersey 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 New Jersey'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 Chatham High School

Chatham High School's state test result (64.3% proficient) is higher than 3 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Chatham High School this school1,2052.4%64.3%
Northern Highlands Regional High School
ALLENDALE
1,2571.0%73.8%
Hopewell Valley Central High School
PENNINGTON
1,0686.1%59.0%
Holmdel High School
HOLMDEL
9342.8%61.4%
West Essex High School
NORTH CALDWELL
1,0613.3%55.8%
Pascack Valley High School
Hillsdale
9282.2%69.0%
Matched among New Jersey 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 Chatham High School ranks

Among high schools
MeasureThis schoolIn New JerseyIn Morris County
State test proficiency
ranked highest first
64.3%#57 of 397#5 of 23
Math proficiency
ranked highest first
36.6%#144 of 400
▼ 94
#17 of 25
▼ 12
Reading proficiency
ranked highest first
70.4%#76 of 395
▲ 13
#12 of 25
▲ 2
Enrollment
ranked largest first
1,205#123 of 442#5 of 27
Students per teacher
ranked fewest first
12.1:1#182 of 388#17 of 23
Diversity index
ranked most diverse first
45.6%#269 of 389#16 of 23
Free and reduced lunch
ranked highest share first
2.4%#381 of 405#20 of 23
Enrollment change since 2017-18
ranked steepest decline first
-5.5%#135 of 200#14 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
1,205
-110 (-8%) vs 2020
+83% since 1990-91, when it was 657
Student : Teacher
12.1:1
was 12.9:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-251,20599.912.1:12% (29)
2023-241,216101.612.0:11% (16)
2022-231,231102.812.0:11% (15)
2020-211,31510212.9:12% (21)
2017-181,275107.711.8:12% (31)
2015-161,20210311.7:12% (23)
2010-111,1097015.8:11% (14)
2000-017015413.0:11% (4)
1990-916575112.9:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Chatham High School.

Since 2017-18: students down 5% (1,275 to 1,205); teachers down 7% (107.7 to 99.9).

About Chatham High School

Chatham High School is a high school in CHATHAM, New Jersey, and it is part of School District of the Chathams. It is open to students in grades 9 through 12 and enrolls 1,205 students. That is 30% above the average of about 929 students for high schools in New Jersey.

The School District of the Chathams system has 6 schools and 3,548 students.

Federal enrollment data show Chatham High School is 72% White. Other groups include 13% Asian, 7% Hispanic, and 6% multiracial. In Morris County overall, the White share is about 68%. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 46%.

Staffing at Chatham High School comes to 99.9 full-time-equivalent teachers, or 12.1:1. The ratio is within a point of the 12.7:1 average for high schools in New Jersey. On the income side, 2% of students qualify for free or reduced-price lunch. On average, public schools in Morris County report 19%.

Chatham High School holds an A- allk12 Grade, placing it above 83% of New Jersey public high schools.

After adjusting for student poverty, Chatham High School lands between the top and bottom 10% of New Jersey schools. Its average proficiency rate across its state test results is 64.3%; the prediction is 64.8%.

In Morris County, the median household earns about $137,326 a year, the share of adults with a bachelor's degree or higher is 58%, and roughly 3% of residents are in poverty. Across Morris County, 156 public schools serve about 72,239 students.

Lafayette Avenue School is the nearest public school to Chatham High School, about 0.1 miles away. Chatham High School is one of several public schools in the area, with at least 8 others within five miles. The nearest schools with test data average 76.3%, higher than Chatham High School's 64.3%.

On the NCES locale scale, the school is Suburb: Large.

In 2024-25, the school enrolled 1,205, down from 1,315 in 2020-21.

This community page is for conversations about open houses, carpools, and field trips. Teachers and staff are welcome to share updates too.

Morris County at a glance

View full county profile
Population
514,528
Census ACS
Median income
$137,326
Household, ACS
Bachelor's+
58%
Adults 25+
Poverty rate
3%
Below federal line
Schools in county
156
72,239 students

Quick facts

School name
Chatham High School
District
School District of the Chathams
Address
255 LAFAYETTE AVENUE, CHATHAM, NJ 07928
Phone
(973) 457-2505
County
Morris County
Level
High
Grade range
09–12
Total enrollment
1,205
Teachers (FTE)
100
Student–teacher ratio
12.1:1
Free and reduced lunch
29 (2%)
Locale
21-Suburb: Large
NCES ID
340000406014
Charter school
No
Virtual school
No

Related schools

Other schools in School District of the Chathams
Other schools in CHATHAM
Other Chatham High schools

2 other US public schools in 3 states are named Chatham High. Chatham High School is the largest of the 3.

Nearby schools

Frequently asked questions

About Chatham High School
What is the total enrollment at Chatham High School?
Chatham High School enrolls approximately 1,205 students in grades 09-12.
Is Chatham High School an elementary, middle, or high school?
Chatham High School is a high school covering grades 09-12.
How many teachers does Chatham High School have?
Chatham High School employs 100 FTE teachers, for a student-to-teacher ratio of 12.1:1.
What is the racial breakdown of students at Chatham High School?
At Chatham High School, the student body is approximately 72% White, 7% Hispanic, 1% Black, 13% Asian, 6% Two or more.
What district is Chatham High School in?
Chatham High School is part of School District of the Chathams.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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