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US School RatingsPublic school data for parents and homebuyers

Public high school · Chelsea

Chelsea Opportunity Academy

Grades 09–12 · Chelsea, MA · NCES 250354002890

School overview

At a glance

Reported students

132

NCES CCD 2024–25, where reported

Teachers (FTE)

7.03

NCES CCD 2024–25

Student–teacher ratio

18.8:1

Calculated, not a class-size measure

Grades served

09–12

NCES preliminary directory 2025–26

School benchmarks

Massachusetts high enrollment

10th percentile

Compared with 378 same-level schools reporting enrollment.

District median enrollment

472

Chelsea Opportunity Academy: 132 reported students.

State peer staffing position

97th percentile

18.8:1 reported; state peer median 11.3:1. Ratio is not class size.

Profile interpretation

What the reported data says about Chelsea Opportunity Academy

Chelsea Opportunity Academy is a public high school serving grades 09–12 in Chelsea. It is one of 11 current school records connected to Chelsea. NCES reports 132 students for 2024–25.

Among 378 high schools in Massachusetts with comparable records, this school is smaller than the reported median of 675.5 students. Its enrollment is at approximately the 10th percentile for that peer group. Size describes the campus, not instructional quality.

The reported student–teacher ratio is 18.8:1, above the Massachusetts median of 11.3:1 for the same school level. This ratio uses total enrollment and teacher FTE; it is not an average classroom headcount and can be affected by special programs or part-time staffing.

The two largest reported race and ethnicity groups are Hispanic or Latino (93.2%) and White (3%). English learners represent 63.2% of enrollment. Students served under IDEA represent 7.7%. These figures help families understand who the school serves; they are not rating inputs.

Turn data into a school visit

Questions worth asking Chelsea Opportunity Academy

  1. 1How do the reported 18.8:1 student–teacher ratio and 7.03 teacher FTE translate into actual class sizes by grade?
  2. 2Have the reported academic programs changed since the 2021–22 CRDC collection?
  3. 3How are the school's 0.75 counselor FTE allocated across grades and student needs?
  4. 4What meal assistance, transportation, after-school, and family-support services are currently available?

Student context

Enrollment needs

English learners
63.2%
Students with disabilities
7.7%
Free/reduced-price lunch
Not reported
Lunch program
Yes participating without using any Provision or the CEO

People available to students

Support staff

Counselors (FTE)
0.75
Nurses (FTE)
0.4
Psychologists (FTE)
0
Social workers (FTE)
1

Student demographics

Race and ethnicity share of reported enrollment

  • White3%
  • Hispanic93.2%
  • Black3%
  • Asian0.8%
  • American Indian / Alaska Native0%
  • Native Hawaiian / Pacific Islander0%
  • Multiracial0%

Race/ethnicity: NCES CCD 2024–25 where reported, otherwise CRDC 2021–22. English learner and disability context: CRDC 2021–22. Privacy rules can produce missing values.

Learning opportunities

Programs reported by the school

Advanced Placement

Not reported as offered

Gifted and talented

Not reported as offered

Computer science

Not reported as offered

Program availability is from CRDC 2021–22 and can change. Confirm current courses and eligibility with the school.

Continue exploring

Other schools in Chelsea

Start with campuses at the same school level or with similar reported enrollment.

Chelsea High

High · Grades 09–12

1,649 reported students

Chelsea Virtual Learning Academy

Other · Grades KG–12

54 reported students

Edgar F. Hooks Elementary

Elementary · Grades 01–04

430 reported students

Eugene Wright Science and Technology Academy

Middle · Grades 05–08

436 reported students

William A Berkowitz Elementary

Elementary · Grades 01–04

455 reported students

Frank M Sokolowski Elementary

Elementary · Grades 01–04

472 reported students

View all 11 district schools →