Chelmsford High
🇺🇸 Official data · 2025North Chelmsford, Massachusetts 01863 · Chelmsford
#59 of 300 high schools in Massachusetts
#863 of 16,910 nationally
About Chelmsford High
Chelmsford High is a public high located in North Chelmsford, in the Chelmsford school district of Massachusetts, United States. It caters for Grades 9–12. In 2025 it enrolled 1,402 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 83.0 out of 100, placing it in the top 5% of high schools in United States and 59th of 300 ranked high schools in Massachusetts. Its strongest component is math proficiency (91th percentile), and its weakest is students per teacher (58th percentile).
Other published figures: enrollment 1,402.
There are 2 schools in North Chelmsford; Chelmsford High ranks 1st of 2 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)81%
- Reading proficiency (30%)82%
- Community advantage (fewer free/reduced-price lunch) (25%)–
- Students per teacher (15%)14.0
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Chelmsford High by the official sources.
- Enrollment
- 1,402
- Students enrolled in the latest NCES directory year.
- Students per teacher
- 14.0
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 82%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 81%
- Share of tested students proficient or above (all students, all grades).
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Schools near Chelmsford High
Closest schools by straight-line distance, with their Success Index (US).
Charles D Harrington
North Chelmsford · Public elementary · Grades K–4
468 students · 347 m away
Col Moses Parker School
Chelmsford · Public middle · Grades 5–6
778 students · 660 m away
McCarthy Middle School
Chelmsford · Public middle · Grades 7–8
808 students · 748 m away
Collegiate Charter School of Lowell
Lowell · Charter other · Grades K–12
1,212 students · 2.2 km away
Community Education Center
Chelmsford · Public other · Grades PK–PK
158 students · 2.9 km away
James S Daley Middle School
Lowell · Public middle · Grades 5–8
669 students · 3.2 km away
Dr Gertrude Bailey
Lowell · Public elementary · Grades PK–4
454 students · 3.3 km away
Center Elementary School
Chelmsford · Public elementary · Grades K–4
480 students · 3.5 km away
Pawtucketville Memorial
Lowell · Public elementary · Grades PK–4
463 students · 3.6 km away
Dr An Wang School
Lowell · Public middle · Grades 5–8
663 students · 3.7 km away
Similar schools
Public high schools in Massachusetts with a comparable Enrollment.
Winchester High School
Winchester · Public high · Grades 9–12
1,404 students
Somerville High
Somerville · Public high · Grades 9–12
1,394 students
North High
Worcester · Public high · Grades 9–12
1,376 students
Lincoln-Sudbury Regional High
Sudbury · Public high · Grades 9–12
1,445 students
Franklin High
Franklin · Public high · Grades 9–12
1,453 students
Belmont High
Belmont · Public high · Grades 9–12
1,454 students
Frequently asked questions
Is Chelmsford High a good school?
Chelmsford High has a Success Index (US) of 83.0 out of 100 (Top 5% of high schools in United States) and ranks #59 of 300 in Massachusetts. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Chelmsford High rank in Massachusetts?
Chelmsford High ranks #59 of 300 high schools in Massachusetts and #863 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Chelmsford High?
Chelmsford High had 1,402 students in 2025.
Is Chelmsford High a elementary school or a high school?
Chelmsford High is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Chelmsford High?
There are 10 schools within 15 km of Chelmsford High; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.