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#1094 of 1,793 schools in MA

Thomas Ditson

Elementary School · Billerica · Billerica, MA

A Billerica elementary school where students score 11 points below what's typical for similar communities.

39 Cook Street, Billerica, MA 01821

  • Math 55% vs MA 43% (2025)
  • Reading 31% vs MA 42% (2025)
  • 16.7:1 student-teacher ratio

Academics

Full Profile · 3/3 metrics
Student Progress6.8Average50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data17
Annual Change-1.39 pts/yr
Data Period2009–2025
TrendDeclining
Academics5.7Average30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency55% (2025 MCAS)
Reading/ELA Proficiency30.5% (2025 MCAS)
Math vs. State Avg+12.9 pts
Reading vs. State Avg-12.1 pts
Overall Proficiency43% (2025 MCAS, Math+ELA)
Expected (poverty-adj.)53% (model expectation from 2025 MCAS)
vs. Expected-10.7 pts
Adjusted Percentile40th
Resources & Environment3.0Needs Improvement20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio16.7:1
District spending per student$21,121
Chronic Absenteeism14.3%

Students at Thomas Ditson score 43% proficient, which is below what's typical for similar communities (expected: 53%).

How we calculate scores →

2025 MCAS proficiency

Most recent published year. School vs. MA average.

Math Proficiency55%(2025 MCAS)
School
State
43%(2025 MCAS)
ELA Proficiency31%(2025 MCAS)
School
State
42%(2025 MCAS)

Trend

↓ Declining

Proficiency has fallen 7 points since 2022, to 43% in 2025, across a 17-year record (2009–2025).

Show all 17 years
2009
Math
54%
ELA
58%
2010
Math
57%
ELA
57%
2011
Math
54%
ELA
58%
2012
Math
66%
ELA
62%
2013
Math
62%
ELA
56%
2014
Math
62%
ELA
66%
2015
Math
64%
ELA
63%
2016
Math
55%
ELA
52%
2017
Math
48%
ELA
59%
2018
Math
49%
ELA
59%
2019
Math
49%
ELA
61%
2020*
Math
46%
ELA
59%
2021*
Math
43%
ELA
57%
2022
Math
54%
ELA
45%
2023
Math
55%
ELA
43%
2024
Math
58%
ELA
39%
2025
Math
55%
ELA
31%

Multi-year averages used by the rating model: math 53% (multi-year average, 2009-2025) · reading/ELA 53% (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 62 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 Thomas Ditson 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 34Car-Dependent
  • Bike 34Somewhat Bikeable
  • City Safety: Average515/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Billerica), 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

$142,564

Median home value

$581,300

Median rent

$2,211/mo

College educated

41.7%

Homeownership

81.1%

Poverty rate

4.1%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 01821; this is area context, not an attendance boundary.

Compare nearby

Nearby same-level schools

4 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
Pine Glen ElementaryEnrollment path unverified6.8K–51.4 mi334Compare →
BoutwellEnrollment path unverified6.0PK–K1.9 mi144Compare →
Fox HillEnrollment path unverified6.6K–51.9 mi455Compare →
Nashoba Learning GroupPrivate · tuition6.7privateK–122.0 mi129Compare →

Distance is proximity only; it is not attendance eligibility.

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

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

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

Billerica

Schools in district
8
Rank in district
#7 of 8
District spending per student
$21,121NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
5.3%Census SAIPE · 2024

Thomas Ditson is listed in Billerica; a district label does not verify attendance for an address.

About Thomas Ditson

Thomas Ditson is a public elementary school in Billerica, MA, part of Billerica, serving approximately 551 students in grades Kindergarten-4th with a 16.7:1 student-teacher ratio. It holds a MySchoolScout rating of 5.7 out of 10 and ranks #1,094 of 1,793 schools in MA. State assessment records show 53% math proficiency (multi-year average, 2009-2025) and 53% reading/ELA proficiency (multi-year average, 2009-2025).

Frequently asked questions

Common questions about Thomas Ditson

What grades does Thomas Ditson serve?

Thomas Ditson serves students in grades Kindergarten through 4th.

How many students attend Thomas Ditson?

Thomas Ditson has an enrollment of approximately 551 students.

What is the student-teacher ratio at Thomas Ditson?

The student-teacher ratio at Thomas Ditson is 16.7:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Thomas Ditson rank in MA?

Thomas Ditson ranks #1,094 of 1,793 schools in MA.

What is Thomas Ditson's MySchoolScout rating?

Thomas Ditson has a current MySchoolScout rating of 5.7 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 Thomas Ditson?

Based on loaded state assessment records, Thomas Ditson has 53% math proficiency (multi-year average, 2009-2025) and 53% reading/ELA proficiency (multi-year average, 2009-2025).

Is Thomas Ditson a charter school?

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

Is Thomas Ditson a Title I school?

No, Thomas Ditson is not currently a Title I school.

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

Grades
Kindergarten – 4th
Enrollment
551
Student-Teacher Ratio
16.7:1
Teachers (FTE)
33
Type
regular
Setting
Large Suburb
County
Middlesex County
Chronic Absenteeism (SY 2022-23)
14.3%
Area population (ZIP 01821)
30,203
Area average commute
27.1 min
Area median age
44.6
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 01821; this does not measure the attendance area.

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

About our data · How we calculate scores

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