Below Average
#1361 of 1,793 schools in MA
Chelsea High
High School · Chelsea
299 Everett Avenue, Chelsea, MA 02150
Enrollment
1,680
Student-Teacher
14.5:1
Score
4.9
Grades
9th – 12th
Enrollment
1,680
Student-Teacher
14.5:1
Score
4.9
Grades
9th – 12th
Data vintage
2022-23
Data vintage2022-23
How this school compares
Massachusetts schools
#1,361 of 1,793
In Chelsea
#7 of 12
public schools
In district
#6 of 11
Chelsea
Academic growth
7.0 / 10
Very Good
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Chelsea High
High School in Chelsea · grades 9th – 12th. Start here, then compare fit against nearby and district options.
Chelsea Opportunity Academy
0.0 mi away. Use as a geographic alternative in the same move search.
Eugene Wright Science and Technology Academy
0.5 mi away. Use as a geographic alternative in the same move search.
About Chelsea High
Chelsea High is a public high school in Chelsea, MA, part of Chelsea. Chelsea High serves approximately 1,680 students, and covers grades 9th-12th, and has a 14.5:1 student-teacher ratio. Chelsea High has a current MySchoolScout rating of 4.9 out of 10 and ranks #1,361 of 1,793 schools in MA.
Structured state assessment records for Chelsea High show 34% math proficiency (multi-year average, 2009-2025) and 46% reading/ELA proficiency (multi-year average, 2009-2025).
- This school 4.9 · Below Average
- District avg 5.0
- MA avg 6.4
What Parents Should Know
45% of students at Chelsea High were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
View breakdown
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Chelsea High — Students at Chelsea High score 20% proficient, which is above what's typical for similar communities (expected: 13%).
Test Scores MA MCAS (2024-25)
Based on 44 test records from MA state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 7.0/10.
How Chelsea High Compares
See how Chelsea High performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
299 Everett Avenue, Chelsea, MA 02150
Nearby Alternatives
Families considering Chelsea High may also want to explore other high schools in the area. Phoenix Academy Charter Public High School Chelsea (rated 6.3/10, 0.6 miles away), which scores notably higher. Another option is Chelsea Opportunity Academy (rated 5.5/10), which scores slightly higher. Additionally, Everett High (rated 4.8/10, 1.0 miles away, in nearby Everett), with a very similar rating. For more schools in Chelsea, see our Chelsea schools guide .
Nearby Schools
20 within 1.1 mi| School | Distance | Rating |
|---|---|---|
| Chelsea Opportunity Academy Chelsea | 0.0 mi | 5.5 |
| Eugene Wright Science and Technology Academy Chelsea | 0.5 mi | 6.3 |
| Joseph A. Browne School Chelsea | 0.5 mi | 6.1 |
| Phoenix Academy Charter Public High School Chelsea Chelsea | 0.6 mi | 6.3 |
| Clark Avenue School Chelsea | 0.5 mi | 4.3 |
| George Keverian School Everett | 0.7 mi | 3.3 |
| Shurtleff Early Childhood Chelsea | 0.7 mi | 4.5 |
| Webster School Everett | 0.9 mi | 3.4 |
| SEAPORT ACADEMY Chelsea | 0.8 mi | — |
| Pioneer Charter School of Science Everett | 0.8 mi | 8.2 |
| Everett High Everett | 1.0 mi | 4.8 |
| Parlin School Everett | 0.9 mi | 3.8 |
| Chelsea Virtual Learning Academy Chelsea | 0.9 mi | 4.7 |
| Webster Extension Everett | 1.0 mi | 3.2 |
| Devens School Everett | 1.0 mi | 4.2 |
| Sumner G. Whittier School Everett | 1.0 mi | 2.4 |
| East Boston High School East Boston | 1.3 mi | 4.7 |
| ST ANTHONY SCHOOL Everett | 1.0 mi | 6.2 |
| William A Berkowitz Elementary Chelsea | 1.1 mi | 8.1 |
| Edgar A Hooks Elementary Chelsea | 1.1 mi | 6.6 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 02150 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$72,122
Median Home Value
$476,500
Median Rent
$1,861/mo
Population
39,444
College Educated
22%
Homeownership
29.2%
Avg Commute
33.5 min
Poverty Rate
20.6%
Median Age
34.5
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Bridgewater-Raynham Regional Bridgewater, MA | 4.9 |
| Leominster High School Leominster, MA | 4.9 |
| Madison Park Technical Vocational High School Roxbury, MA | 5.0 |
| Everett High Everett, MA | 4.8 |
| Milford High Milford, MA | 4.8 |
| Billerica Memorial High School Billerica, MA | 4.7 |
Frequently Asked Questions
Common questions about Chelsea High
What grades does Chelsea High serve?
Chelsea High serves students in grades 9th through 12th.
How many students attend Chelsea High?
Chelsea High has an enrollment of approximately 1,680 students.
What is the student-teacher ratio at Chelsea High?
The student-teacher ratio at Chelsea High is 14.5:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Chelsea High rank in MA?
Chelsea High ranks #1,361 of 1,793 schools in MA.
What is Chelsea High's MySchoolScout rating?
Chelsea High has a current MySchoolScout rating of 4.9 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Chelsea High?
Based on loaded state assessment records, Chelsea High has 34% math proficiency (multi-year average, 2009-2025) and 46% reading/ELA proficiency (multi-year average, 2009-2025).
Is Chelsea High a charter school?
No, Chelsea High is not a charter school. It is a traditional public school operated by the local school district.
Is Chelsea High a Title I school?
No, Chelsea High is not currently a Title I school.
Neighborhood Context
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Quick Facts NCES CCD (SY 2022-23)
- Grades
- 9th – 12th
- Enrollment
- 1,680
- Student-Teacher Ratio
- 14.5:1
- Teachers (FTE)
- 116
- Type
- regular
- Setting
- Large Suburb
- County
- Suffolk County
- Chronic Absenteeism (SY 2022-23)
- 44.9%
- Phone
- (617) 466-5000
- 4-Year Graduation
- 75.0%
Resources & Links
District
Chelsea- District Enrollment
- 6,148
- Schools in District
- 11
- Per-Pupil Spending
- $21,435
- District Rank
- #6 of 11
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