- Enrollment
- 779
- Students per teacher
- 13.2:1
- Resource Index
- 26/100
High school (grades 9-12) · Chelsea, MA
Chelsea High
Federal NCES profile for Chelsea High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 250354000482
👥 S:T ratio 40
🌟 Gifted program 30
🎓 Counselors 67
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Chelsea High earns 34/100 on the Resource Investment Index, with class sizes larger than 88% of Massachusetts schools. It is also one of the largest schools in Massachusetts.
- #3 of 3
- high schools in Chelsea · Resource Index
- 34
- Resource Index · Typical
- 15.1:1
- large classes for Massachusetts
- 1,649
- students enrolled
Chelsea High has class sizes larger than 88% of Massachusetts schools. Computed live against every Massachusetts school reporting to NCES.
By Resource Investment Index, Chelsea High ranks #3 of 3 high schools in Chelsea, MA.
School address
District: Chelsea · Massachusetts
NCES ID 250354000482 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+69 students YoY
Chelsea High held near 1,680 students from 2022-23 to 2023-24 (+69 headcount).
Teacher FTE added 109.5 → 116.1 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+69 students YoY 250354000482 · Chelsea, MA High · MID · TRAD
1,649 enr · 15.1:1 · RII 34
Nearest enrollment peer: Shurtleff Early Childhood (779 students)
Chelsea High held near 1,680 students from 2022-23 to 2023-24 (+69 headcount). Teacher FTE added 109.5 → 116.1 across the same CCD years. Read with this school → · District book → · Massachusetts schools → · Find another →
Chelsea High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
Chelsea High
1,649 students
- Shurtleff Earl
Shurtleff Early Childhood
779 students
- Clark Avenue S
Clark Avenue School
673 students
- George F. Kell 527
George F. Kelly Elementary
527 students
- Joseph a. Brow 487
Joseph a. Browne School
487 students
- Frank M Sokolo 472
Frank M Sokolowski Elementary
472 students
What this shows Chelsea High reports 1,649 students on the CCD universe file.
How Chelsea High compares
Chelsea High held steady on CCD headcount: ratios and free-lunch share vs Massachusetts and U.S. means.
| Metric | This school | vs Massachusetts | Massachusetts avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.1:1 | ▲ 23% | 12.3:1 | 15.7:1 |
| Enrollment | 1,649 | top 2% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.1:1
Leaner classes than 46% of US schools, a middle-of-the-pack class size.
1,649
Bigger than 97% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Staffing depth
15.1:1
students per teacher
- 23% above state mean
Top 88% in Massachusetts - lower ratio than 12% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
42.6%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$20,895
per pupil, district-wide
- below Massachusetts avg of $23,695
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors10.0 FTE
Per 165 students, the combined health-and-guidance staffing load for this school.
Discipline context
189
in-school suspensions + 85 out-of-school
Suspension rate: 11.5 per 100 students. Combined in-school and out-of-school rate: 16.6 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 88.7%
White 5.1%
African American 4.4%
Asian 0.9%
Two or More 0.9%
American Indian / Alaska Native 0.1%
Largest group: Hispanic or Latino at 88.7% of enrollment.
Student-body diversity index 20.9/100
Simpson diversity index - at 20.9, Chelsea High is less mixed than the Massachusetts school average of 47.3.
Programs
AP courses offered 11
District finance for Chelsea reports $20,895 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Chelsea High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Shurtleff Early Childhood | Smaller | No free-lunch data | Lower S:T ratio |
| Clark Avenue School | Smaller | No free-lunch data | Lower S:T ratio |
| George F. Kelly Elementary | Smaller | No free-lunch data | Similar S:T ratio |
| Joseph a. Browne School | Smaller | No free-lunch data | Lower S:T ratio |
| Frank M Sokolowski Elementary | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Chelsea High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 673
- Students per teacher
- 13.5:1
- Resource Index
- 30/100
- Enrollment
- 527
- Students per teacher
- 13.9:1
- Resource Index
- 45/100
- Enrollment
- 487
- Students per teacher
- 10.8:1
- Resource Index
- 35/100
- Enrollment
- 472
- Students per teacher
- 11.5:1
- Resource Index
- 29/100
Similar high schools in Chelsea
2 comparable high schools (grades 9-12) serving the same city.
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~1,649 students)
Frequently asked questions about Chelsea High
How many students attend Chelsea High?
Chelsea High has 1,649 students enrolled. It is a high school in Chelsea, MA. CCD year-over-year: 1,611 (2022-23) → 1,680 (2023-24), nearly flat (+69).
What is the student-teacher ratio at Chelsea High?
The student-teacher ratio at Chelsea High is 15.1:1, which is 23% higher than the Massachusetts average of 12.3:1 and 4% lower than the national average of 15.7:1.
What is the racial and ethnic makeup of Chelsea High?
The largest demographic group at Chelsea High is Hispanic or Latino at 88.7% of enrollment, in Chelsea, MA.
What is the Resource Investment Index for Chelsea High?
Chelsea High has a Resource Investment Index of 34/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Chelsea High rank among high schools in Chelsea?
By Resource Investment Index, Chelsea High ranks #3 of 3 high schools in Chelsea, MA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Chelsea on the city page.
What other schools are in Chelsea?
Besides Chelsea High, Chelsea also operates Shurtleff Early Childhood (779 students), Clark Avenue School (673 students), and George F. Kelly Elementary (527 students). See the Chelsea district page for the complete list.