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#1173 of 1,793 schools in MA

Chelsea Opportunity Academy

High School · Chelsea · Chelsea, MA

A high school in Chelsea, MA where students score 12 points above what's typical for similar communities.

299 Everett Avenue, Chelsea, MA 02150

  • Math 25% proficient (2019)
  • Reading 25% proficient (2019)
  • 24.5% 4-year graduation

Academics

Full Profile · 4/4 metrics
Student Progress9.5Excellent25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data2
Annual Change+0.5 pts/yr
Data Period2018–2019
TrendStable
Academics6.3Average25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency25% (2019 EdFacts)
Reading/ELA Proficiency25% (2019 EdFacts)
Overall Proficiency25% (2019 EdFacts, Math+ELA)
Expected (poverty-adj.)13% (model expectation from 2019 EdFacts)
vs. Expected+12.3 pts
Adjusted Percentile46th
College Readiness3.9Needs Improvement30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate24.5%
IB ProgramNo
Resources & Environment2.1Needs Improvement20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio17.9:1
District spending per student$21,435

Students at Chelsea Opportunity Academy score 25% proficient, which is above what's typical for similar communities (expected: 13%).

How we calculate scores →

2019 EdFacts proficiency

Most recent published year. School vs. MA average.

Math Proficiency25%(2019 EdFacts)
School
State
Not reported(2019 EdFacts)
ELA Proficiency25%(2019 EdFacts)
School
State
Not reported(2019 EdFacts)

Trend

→ Steady

Proficiency has held near 25% across the 2-year record (2018–2019).

Show all 2 years by subject
2018
Math
25%
ELA
25%
2019
Math
25%
ELA
25%

Multi-year averages used by the rating model: math 25% (multi-year average, 2018-2019) · reading/ELA 25% (multi-year average, 2018-2019)

Based on 4 test records from MA state assessments and EdFacts (NCES).

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

The neighborhood

Where Chelsea Opportunity Academy sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Boston map →

Getting around & local context

  • Walk 86Very Walkable
  • Transit 63Good Transit
  • Bike 52Bikeable
  • City Safety: High2,423/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Chelsea), not school-level safety or attendance eligibility. Source details

Source period: 2024. Freshness not available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$72,122

Median home value

$476,500

Median rent

$1,861/mo

College educated

22%

Homeownership

29.2%

Poverty rate

20.6%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 02150; this is area context, not an attendance boundary.

Compare nearby

Nearby same-level schools

4 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
Chelsea HighEnrollment path unverified4.99–120.0 mi1,680Compare →
Phoenix Academy Charter Public High School ChelseaCharter · enrollment unverified6.39–120.6 mi194Compare →
Pioneer Charter School of ScienceCharter · enrollment unverified8.2K–120.8 mi779Compare →
Seaport AcademyPrivate · tuitionNot rated9–120.8 mi24Compare →

Distance is proximity only; it is not attendance eligibility.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

Charter · enrollment unverified: Potential charter option; enrollment requirements have not been verified.

Private · tuition: Potential private option; tuition and admission requirements have not been verified.

Chelsea

Schools in district
11
Rank in district
#5 of 11
District spending per student
$21,435NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
22.2%Census SAIPE · 2024

Chelsea Opportunity Academy is listed in Chelsea; a district label does not verify attendance for an address.

About Chelsea Opportunity Academy

Chelsea Opportunity Academy is a public high school in Chelsea, MA, part of Chelsea, serving approximately 125 students in grades 9th-12th with a 17.9:1 student-teacher ratio. It holds a MySchoolScout rating of 5.5 out of 10 and ranks #1,173 of 1,793 schools in MA. State assessment records show 25% math proficiency (multi-year average, 2018-2019) and 25% reading/ELA proficiency (multi-year average, 2018-2019).

Frequently asked questions

Common questions about Chelsea Opportunity Academy

What grades does Chelsea Opportunity Academy serve?

Chelsea Opportunity Academy serves students in grades 9th through 12th.

How many students attend Chelsea Opportunity Academy?

Chelsea Opportunity Academy has an enrollment of approximately 125 students.

What is the student-teacher ratio at Chelsea Opportunity Academy?

The student-teacher ratio at Chelsea Opportunity Academy is 17.9:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Chelsea Opportunity Academy rank in MA?

Chelsea Opportunity Academy ranks #1,173 of 1,793 schools in MA.

What is Chelsea Opportunity Academy's MySchoolScout rating?

Chelsea Opportunity Academy has a current MySchoolScout rating of 5.5 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 Opportunity Academy?

Based on loaded state assessment records, Chelsea Opportunity Academy has 25% math proficiency (multi-year average, 2018-2019) and 25% reading/ELA proficiency (multi-year average, 2018-2019).

Is Chelsea Opportunity Academy a charter school?

No, Chelsea Opportunity Academy is not a charter school. It is a traditional public school operated by the local school district.

Is Chelsea Opportunity Academy a Title I school?

No, Chelsea Opportunity Academy is not currently a Title I school.

School factsNCES Common Core of Data (CCD) (SY 2023–24)

Grades
9th – 12th
Enrollment
125
Student-Teacher Ratio
17.9:1
Teachers (FTE)
7
Type
alternative
Setting
Large Suburb
County
Suffolk County
4-Year Graduation
24.5%
Area population (ZIP 02150)
39,444
Area average commute
33.5 min
Area median age
34.5
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2019 EdFacts · Low confidence
  • Older source: 2019 EdFacts. Use as historical context.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2019 EdFacts · Low confidence
  • Older source: 2019 EdFacts. Use as historical context.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
NCES EdFacts · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 02150; this does not measure the attendance area.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2018-2019; directory SY 2023–24

About our data · How we calculate scores

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