Chelsea High
🇺🇸 Official data · 2025Chelsea, Massachusetts 02150 · Chelsea
#269 of 300 high schools in Massachusetts
#12879 of 16,910 nationally
About Chelsea High
Chelsea High is a public high located in Chelsea, in the Chelsea school district of Massachusetts, United States. It caters for Grades 9–12. In 2025 it enrolled 1,649 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 32.0 out of 100, placing it in the lower 50% of high schools in United States and 269th of 300 ranked high schools in Massachusetts. Its strongest component is students per teacher (65th percentile), and its weakest is reading proficiency (16th percentile).
Other published figures: enrollment 1,649.
There are 9 schools in Chelsea; Chelsea High ranks 5th of 9 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)28%
- Reading proficiency (30%)30%
- Community advantage (fewer free/reduced-price lunch) (25%)–
- Students per teacher (15%)13.2
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 Chelsea High by the official sources.
- Enrollment
- 1,649
- Students enrolled in the latest NCES directory year.
- Students per teacher
- 13.2
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 30%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 28%
- Share of tested students proficient or above (all students, all grades).
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Schools near Chelsea High
Closest schools by straight-line distance, with their Success Index (US).
Eugene Wright Science and Technology Academy
Chelsea · Public middle · Grades 5–8
436 students · 744 m away
Joseph A. Browne School
Chelsea · Public middle · Grades 5–8
487 students · 744 m away
Clark Avenue School
Chelsea · Public middle · Grades 5–8
673 students · 855 m away
George Keverian School
Everett · Public elementary · Grades K–8
873 students · 1.1 km away
Shurtleff Early Childhood
Chelsea · Public elementary · Grades PK–1
779 students · 1.2 km away
Pioneer Charter School of Science
Everett · Charter other · Grades K–12
795 students · 1.3 km away
Webster School
Everett · Public elementary · Grades K–5
351 students · 1.4 km away
Parlin School
Everett · Public elementary · Grades K–8
992 students · 1.5 km away
Sumner G. Whittier School
Everett · Public elementary · Grades K–8
615 students · 1.5 km away
Devens School
Everett · Public other · Grades K–12
38 students · 1.6 km away
Similar schools
Public high schools in Massachusetts with a comparable Enrollment.
Barnstable High
Hyannis · Public high · Grades 8–12
1,652 students
Needham High
Needham · Public high · Grades 9–12
1,633 students
Acton-Boxborough Regional High
Acton · Public high · Grades 9–12
1,622 students
Arlington High
Arlington · Public high · Grades 9–12
1,677 students
Weymouth High School
Weymouth · Public high · Grades 9–12
1,679 students
Andover High
Andover · Public high · Grades 9–12
1,609 students
Frequently asked questions
Is Chelsea High a good school?
Chelsea High has a Success Index (US) of 32.0 out of 100 (Lower 50% of high schools in United States) and ranks #269 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 Chelsea High rank in Massachusetts?
Chelsea High ranks #269 of 300 high schools in Massachusetts and #12879 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Chelsea High?
Chelsea High had 1,649 students in 2025.
Is Chelsea High a elementary school or a high school?
Chelsea High is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Chelsea High?
There are 10 schools within 15 km of Chelsea High; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.