Chelsea High
Score 13.6/100: better than 13% of Massachusetts high schools on 2025-26 state tests. Schools are only compared with others of the same type in the same state. How we score schools
Performance (state tests, 2025-26)
% meeting or exceeding expectations on state tests in Massachusetts, all students. Colored bars are green when the school is at or above the average for similar Massachusetts schools.
Results over time
How this school's published results have moved year by year.
All 4 published results by grade and test
As published by Massachusetts Department of Elementary and Secondary Education. "Hidden" means the state didn't publish the result to protect student privacy.
| Subject | Grade | Test | Result | Students tested |
|---|---|---|---|---|
| English language arts | Grade 10 | MCAS ELA | 16 | 293 |
| Math | Grade 10 | MCAS Mathematics | 15 | 280 |
| Science | High school | MCAS Biology | 11 | 325 |
| Science | Grade 10 | MCAS Science | 14 | 284 |
School profile
- Grades
- 9-12
- Students
- 1,680
- Type
- High school
- Charter school
- No
- Program
- Regular
Students
Contact
Chelsea, MA 02150
"Typical" is the middle (median) high school in Massachusetts. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24).
Nearby high schools
Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.
Explore schools around Chelsea
Location
Official sources
Every figure on this page comes from published government data. Check the originals here; we refresh when states release new results.
U.S. Department of Education, National Center for Education Statistics, Common Core of Data (CCD): school directory, grades served, enrollment and free/reduced-price lunch, 2023-24 and 2024-25. Spotted a mistake? Tell us.
Chelsea High at a glance
Chelsea High is a public high school in Chelsea, Massachusetts, serving grades 9-12. It is part of the Chelsea school district. It has about 1,680 students (a typical Massachusetts high school has 684).
In 2025-26 state tests, 16% in English language arts (similar schools: 45%) and 15% in math (similar schools: 43%) reached the state standard (% meeting or exceeding expectations). On our score, which compares it only with other Massachusetts high schools, it scores 13.6 out of 100: better than 13% of them, ranking #265 of 306. Its English language arts result fell by 5 points from the year before. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.
Page updated 2026-10-12.