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Very Good

#564 of 1,793 schools in MA

Top 31% in state

Chelmsford High

High School · Chelmsford · North Chelmsford, MA

A high school in North Chelmsford, MA where students score 15 points above what's typical for similar communities.

200 Richardson Rd, North Chelmsford, MA 01863

  • Math 63% vs MA 46% (2025)
  • Reading 75% vs MA 52% (2025)
  • 99%+ 4-year graduation

Academics

Full Profile · 4/4 metrics
Student Progress6.4Average25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data17
Annual Change-1.58 pts/yr
Data Period2009–2025
TrendDeclining
Academics9.2Excellent25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency63% (2025 MCAS)
Reading/ELA Proficiency75% (2025 MCAS)
Math vs. State Avg+17.1 pts
Reading vs. State Avg+23 pts
Overall Proficiency69% (2025 MCAS, Math+ELA)
Expected (poverty-adj.)54% (model expectation from 2025 MCAS)
vs. Expected+15.3 pts
Adjusted Percentile88th
College Readiness8.6Excellent30%
Graduation rates, AP course participation, and IB availability.
View breakdown
4-Year Graduation Rate99%+
AP Participation24.3%
IB ProgramNo
Resources & Environment3.8Needs Improvement20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio14.1:1
District spending per student$18,243
Chronic Absenteeism16.6%

Students at Chelmsford High score 69% proficient, which is above what's typical for similar communities (expected: 54%).

How we calculate scores →

2025 MCAS proficiency

Most recent published year. School vs. MA average.

Math Proficiency63%(2025 MCAS)
School
State
46%(2025 MCAS)
ELA Proficiency75%(2025 MCAS)
School
State
52%(2025 MCAS)

Trend

→ Steady

Proficiency is down 26 points across the 17-year record (2009–2025) and has held near 69% recently.

Show all 17 years
2009
Math
93%
ELA
96%
2010
Math
92%
ELA
95%
2011
Math
90%
ELA
97%
2012
Math
92%
ELA
98%
2013
Math
94%
ELA
98%
2014
Math
95%
ELA
98%
2015
Math
93%
ELA
98%
2016
Math
96%
ELA
100%
2017
Math
92%
ELA
97%
2018
Math
81%
ELA
82%
2019
Math
82%
ELA
82%
2020*
Math
71%
ELA
84%
2021*
Math
71%
ELA
84%
2022
Math
66%
ELA
79%
2023
Math
67%
ELA
78%
2024
Math
75%
ELA
83%
2025
Math
63%
ELA
75%

Multi-year averages used by the rating model: math 82% (multi-year average, 2009-2025) · reading/ELA 88% (multi-year average, 2009-2025)

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Based on 44 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 Chelmsford High 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 14Car-Dependent
  • Bike 25Somewhat Bikeable

Powered byWalk Score

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

Median income

$136,284

Median home value

$477,900

Median rent

$1,698/mo

College educated

48.6%

Homeownership

84.4%

Poverty rate

3.4%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 01863; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

AP/IB Programs3AP courses offered
24.3% participation·State avg: 2.9 AP courses·CRDC via Urban Institute · SY 2021–22
Advanced STEM Courses5of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC via Urban Institute · SY 2021–22

Compare nearby

Nearby same-level schools

4 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
Collegiate Charter School of LowellCharter · enrollment unverified2.8K–121.3 mi1,211Compare →
Lighthouse School, IncPrivate · tuition7.1private1–121.7 mi184Compare →
Gr Lowell Regional Vocational TechnicalEnrollment path unverified7.99–122.3 mi2,314Compare →
The Career AcademyEnrollment path unverified4.39–122.8 mi92Compare →

Distance is proximity only; it is not attendance eligibility.

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.

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

Public and private scores come from different models and are shown side by side, not blended into one ranking.

Chelmsford

Schools in district
8
Rank in district
#2 of 8
District spending per student
$18,243NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
5.0%Census SAIPE · 2024

Chelmsford High is listed in Chelmsford; a district label does not verify attendance for an address.

About Chelmsford High

Chelmsford High is a public high school in North Chelmsford, MA, part of Chelmsford, serving approximately 1,413 students in grades 9th-12th with a 14.1:1 student-teacher ratio. It holds a MySchoolScout rating of 7.2 out of 10 and ranks #564 of 1,793 schools in MA. State assessment records show 82% math proficiency (multi-year average, 2009-2025) and 88% reading/ELA proficiency (multi-year average, 2009-2025).

Frequently asked questions

Common questions about Chelmsford High

What grades does Chelmsford High serve?

Chelmsford High serves students in grades 9th through 12th.

How many students attend Chelmsford High?

Chelmsford High has an enrollment of approximately 1,413 students.

What is the student-teacher ratio at Chelmsford High?

The student-teacher ratio at Chelmsford High is 14.1:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Chelmsford High rank in MA?

Chelmsford High ranks #564 of 1,793 schools in MA.

What is Chelmsford High's MySchoolScout rating?

Chelmsford High has a current MySchoolScout rating of 7.2 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 Chelmsford High?

Based on loaded state assessment records, Chelmsford High has 82% math proficiency (multi-year average, 2009-2025) and 88% reading/ELA proficiency (multi-year average, 2009-2025).

Is Chelmsford High a charter school?

No, Chelmsford High is not a charter school. It is a traditional public school operated by the local school district.

Is Chelmsford High a Title I school?

No, Chelmsford High is not currently a Title I school.

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

Grades
9th – 12th
Enrollment
1,413
Student-Teacher Ratio
14.1:1
Teachers (FTE)
100
Type
regular
Setting
Large Suburb
County
Middlesex County
Chronic Absenteeism (SY 2022-23)
16.6%
4-Year Graduation
99%+
Area population (ZIP 01863)
9,592
Area average commute
29 min
Area median age
42.8
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 · 2025 MCAS · 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 from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2025 MCAS · 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 from source records rather than read directly from one field.
Student progress (growth)
State assessments · 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 01863; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2025; directory SY 2023–24

About our data · How we calculate scores

Related reading

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