C Top 74%

Chelsea Opportunity Academy

Grades 09-12 CHELSEA, MA

Moved down 138 places from 2023 to 2024

#294 State Rank
C- District Grade
299 Everett Avenue, CHELSEA, MA 02150
Rating sources & methodology MCAS scores from 2024 Data updated December 2025
115 Students
40% Attendance Rate
59.3 Composite Score

Student Demographics

115 students enrolled

Race/Ethnicity

Hispanic 93%
Black 3.5%
White 2.6%
Asian 0.9%

Gender

58.3% Male
41.7% Female

Student Programs

English Learners 48.7%
Special Education 14.8%
Free/Reduced Lunch 75.7%

School Performance

Key metrics and program information

Attendance

40% Attendance Rate
97.8% 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 115 students are enrolled at Chelsea Opportunity Academy.

What is the attendance rate at Chelsea Opportunity Academy?

Chelsea Opportunity Academy has an attendance rate of 40%. 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.