C Top 74%

Chelsea Opportunity Academy

Grades 09-12 CHELSEA, MA

Dropped 138 spots from last year

#294 State Rank
C- District Grade
299 Everett Avenue, CHELSEA, MA 02150
MCAS scores from 2024 Data updated December 2025
132 Students
29.8% Attendance Rate
59.3 Composite Score

Student Demographics

132 students enrolled

Race/Ethnicity

Hispanic 93.2%
White 3%
Black 3%
Asian 0.8%

Gender

55.3% Male
44.7% Female

Student Programs

English Learners 55.3%
Special Education 12.9%
Free/Reduced Lunch 72%

School Performance

Key metrics and program information

Attendance

29.8% Attendance Rate
98.4% Chronic Absence

College Readiness

MassCore is Massachusetts' recommended college-ready curriculum.

Staffing

Location

299 Everett Avenue, CHELSEA, MA

C-Rated School

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Part of Chelsea School District

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Frequently Asked Questions

What is Chelsea Opportunity Academy's grade rating?

Chelsea Opportunity Academy has earned a grade of C, ranked #294 in Massachusetts, placing it in the top 74% of Massachusetts High schools. This rating is based on 2024 MCAS test scores, attendance rates, and other performance metrics from the Massachusetts Department of Elementary and Secondary Education.

How many students attend Chelsea Opportunity Academy?

Approximately 132 students are enrolled at Chelsea Opportunity Academy.

What is the attendance rate at Chelsea Opportunity Academy?

Chelsea Opportunity Academy has an attendance rate of 29.8%. Strong attendance is correlated with better academic outcomes.

What school district is Chelsea Opportunity Academy part of?

Chelsea Opportunity Academy is part of Chelsea School District. For enrollment information, contact the district office or visit the school's website. Enrollment typically requires proof of residency within the district boundaries.

How are Massachusetts school ratings calculated?

School ratings are calculated using multiple data points from the Massachusetts Department of Elementary and Secondary Education (DESE), including MCAS test scores (proficiency and growth), attendance rates, graduation rates (for high schools), and student-teacher ratios. Schools are ranked by percentile against similar schools statewide.