Overall#59
B+
School Code: 560505
Chelmsford High
Chelmsford is a suburban town in northern Middlesex County, located about 25 miles northwest of Boston. The town developed from an agricultural community into a modern suburb following the arrival of industry in the 19th century, and today it retains a mix of residential neighborhoods, conservation land, and commercial areas along Route 3 and Route 495. Chelmsford is known for its New England town character, with a traditional town common and strong community emphasis on local schools and recreation.
State Rankings
#59
Overall Rank
#52
SAT Total
#52
ELA MCAS
#73
Math MCAS
#48
AP Success
#110
Graduation
SAT Performance
Total Score▲ +27
1189
Reading/Writing▲ +24
603
Math▸ +3
586
Tests Taken
330
Score Composition
R/W: 603
Math: 586
MCAS Performance
Meeting or Exceeding Expectations
English Language Arts▼ -475%(Rank #52)
Mathematics▼ -363%(Rank #73)
Science▼ -854%
Average Scaled Scores
ELA
511
Math
508
Science
502
Achievement Percentiles
ELA: 82.0th · Math: 82.0th · Science: —
Student Growth Percentiles:
ELA: 53.0 · Math: 54.0
ELA: 53.0 · Math: 54.0
AP Exam Results
Test Takers
283
Tests Taken
650
Passing Rate (3-5)▲ +13.7
86.9%
AP Success Rank: #48
Score Distribution
25.5%
Score 5
36.0%
Score 4
25.4%
Score 3
10.8%
Score 2
2.3%
Score 1
Below Passing (1-2): 13.1%
Student Demographics
Race/Ethnicity
White: 62.6%
Asian: 18.9%
Hispanic/Latino: 9.5%
Black/African American: 4.6%
Multi-Race: 4.1%
American Indian/Alaska Native: 0.1%
Native Hawaiian/Pacific Islander: 0.1%
Gender
46.6% Female
53.1% Male
0.3% Nonbinary
Student Populations
Population Percentages
High Needs29.7% (428)
Low Income16% (231)
English Learners2.5% (36)
First Language Not English27.5% (397)
Key Indicators
High Needs
29.7%
Low Income
16%
Graduation Rate
96.6%
4-Year Graduation Rate ▸ -0.4
State Ranking
#110
Cohort Size
350
Dropped Out: 1.1%
Still in School: 2%
Attendance & Discipline
Attendance
Attendance Rate▲ +2.1
95%
Chronically Absent▼ -7.6
11.7%
Avg. Absences per Student8.9
Discipline
In-School Suspension2.9%
Out-of-School Suspension1.5%
Academic Indicators
Grade 9 Course Passage
Passing All Courses
93.9%
Based on 347 grade 9 students
Advanced Course Completion
Completing Advanced Courses
98.3%
% of grade 11-12 students completing at least one advanced course
Historical Trends
Performance trends across available years. COVID-19 caused data gaps in 2020-2021.
SAT Total Score▲ +27
1189
20172025
At pre-COVID levels
ELA MCAS (M+E %)▼ -4
75
20192025
Below pre-COVID levels
Math MCAS (M+E %)▼ -3
63
20192025
Below pre-COVID levels
Graduation Rate▸ -0.4
96.6
20152024
At pre-COVID levels
AP Passing Rate (3-5)▲ +13.7
86.9
20152025
At pre-COVID levels
Attendance Rate▲ +2.1
95
20182025
At pre-COVID levels
Chronically Absent▼ -7.6
11.7
20182025
Above pre-COVID levels
College Enrollment▲ +10
85.4
20152025
Below pre-COVID levels
Post-Graduation Outcomes
85.4%
College Enrollment Rate
Combined 2-year and 4-year college attendance
51.3%
4-Year Private College
25.4%
4-Year Public College
8.7%
2-Year Public College
1.8%
Other Post-Secondary
5.4%
Work
1.5%
Military
2.4%
Other
3.6%
Unknown
Based on 335 graduates
School Profile
Faculty & Staff
Total Teachers (FTE)100.3
Student/Teacher Ratio14.0 to 1
Teachers Licensed100%
Experienced Teachers88.4%
Teaching In-Field91.5%
Quick Facts
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