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SCHOOL COMMUNITY·BILLERICA·NCES 250267000186

Thomas Ditson

39 Cook Street, Billerica, MA 01821 · (978) 528-8510 · Middlesex County
GRADES KG–04ELEMENTARY21-SUBURBREGULAR SCHOOL542 STUDENTS
C+
allk12 Grade
Scored higher than 43% of Massachusetts public elementary schools
  • BTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • ·Beats expectations Not available for this school, so the grade uses the other parts.
  • DThree-year trend Change in reading and math proficiency over the last three test years.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Massachusetts public elementary schools

Enrollment
542
Elementary
DISTRICT 406 · STATE 381
Student : Teacher
16.9:1
32 FTE teachers
DISTRICT 14.7:1 · STATE 12.2:1
Free / Reduced Lunch
,
Title I proxy
Community
5
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Kindergarten9217%
Grade 110519%
Grade 211722%
Grade 311922%
Grade 410920%

This year's kindergarten class (92) is 16% smaller than its 4th grade class (109).

Student demographics
54%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 53% · STATE 65% · US 70%
White
35265%
DISTRICT 66% · STATE 51% · US 43%
Hispanic
6011%
DISTRICT 12% · STATE 26% · US 30%
Black
265%
DISTRICT 7% · STATE 10% · US 15%
Asian
8015%
DISTRICT 11% · STATE 7% · US 6%
Two+
204%
DISTRICT 4% · STATE 5% · US 5%
Native American
31%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
10%
DISTRICT 0% · STATE 0% · US 0%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
28553%
Female
25747%

Discussions

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Test scores

MCAS 2024-25 . % Meeting or Exceeding Expectations
English Language Arts
34.0%
MA avg 43.8% . -18.0pp since 2016
Math
54.0%
MA avg 42.2% . -1.0pp since 2016

What this means: On the MCAS, Massachusetts's statewide test, about 34 of every 100 students at this school read and write at grade level and about 54 of 100 do math at grade level. Across all Massachusetts schools, those numbers are about 44 and 42. Reading and writing scores are down about 18 points since 2016, while math scores are down about 1 points.

MCAS results by year

School yearEnglish Language ArtsMath
2024-2534.0%54.0%
2023-2439.0%57.0%
2022-2348.0%55.0%
2021-2249.0%57.0%
2020-2159.0%46.0%
2018-1961.0%51.0%
2017-1859.0%49.0%
2016-1752.0%55.0%
% Meeting or Exceeding Expectations, all students and all tested grades.
Source: MCAS. All students, all grades. See all years and grades →

Where Thomas Ditson ranks

Among elementary schools
MeasureThis schoolIn MassachusettsIn Middlesex County
Math proficiency
ranked highest first
54.0%#293 of 920
▼ 21
#110 of 207
▼ 4
Reading proficiency
ranked highest first
34.0%#586 of 920
▼ 112
#166 of 207
▼ 19
3-year test score change
ranked biggest drop first
-9.0pp#75 of 901#16 of 206
Enrollment
ranked largest first
542#184 of 1,086#37 of 238
Students per teacher
ranked fewest first
16.9:1#916 of 938#221 of 222
Diversity index
ranked most diverse first
54.0%#424 of 938#139 of 222
Enrollment change since 2017-18
ranked fastest growth first
+1.1%#295 of 317#69 of 77
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
542
+15 (+3%) vs 2020
+21% since 1990-91, when it was 448
Student : Teacher
16.9:1
was 14.6:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2554232.116.9:1N/A
2023-2455133.216.6:1N/A
2022-2355733.216.8:1N/A
2020-215273614.6:1N/A
2017-1853639.913.4:1N/A
2015-165483914.1:1N/A
2010-117274615.8:112% (88)
2000-01523N/AN/A7% (39)
1990-91448N/AN/AN/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Thomas Ditson.

Since 2017-18: students up 1% (536 to 542); teachers down 20% (39.9 to 32.1).

About Thomas Ditson

As a mid-sized elementary school, Thomas Ditson serves students in Billerica, Massachusetts. It teaches 542 students in kindergarten through 4. It has 42% more students than the average for elementary schools in Massachusetts (about 381).

Billerica is responsible for 8 schools, Thomas Ditson included, with 4,972 students in all.

At Thomas Ditson, 65% of students are White. The school is also 15% Asian, 11% Hispanic, 5% Black, and 4% multiracial. Census estimates put Middlesex County at about 67% White, close to the school's figure. A diversity index of 54% means there is a 54% chance two randomly chosen students at Thomas Ditson are from different groups.

The student-to-teacher ratio is 16.9:1. The school has 32.1 full-time-equivalent teachers. Across elementary schools in Massachusetts, the average ratio is 12.2:1.

Thomas Ditson earns a C+ on the allk12 Grade, which blends test scores, results against poverty-based expectations, and the three-year trend. It scored higher than 43% of Massachusetts public elementary schools.

The school's county is Middlesex County. According to Census Bureau estimates, the median household earns about $130,847 a year, roughly 60% of adults have a four-year degree or more, and the share of residents below the poverty line is 5%. Thomas Ditson shares Middlesex County with 385 other public schools.

Shawsheen Valley Vocational Technical High School is the nearest public school to Thomas Ditson, about 0.8 miles away. Other public schools within five miles number at least 8.

The National Center for Education Statistics classifies the school's location as Suburb: Large, meaning it is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

Over the 4 years from 2020-21 to 2024-25, enrollment rose 3%. The ratio of students to teachers went from 14.6:1 to 16.9:1 over the same years.

Parents, students, and staff can share information on pickup and drop-off, after-school programs, and teacher feedback here. Members of the school community can share what they know.

Middlesex County at a glance

View full county profile
Population
1,638,365
Census ACS
Median income
$130,847
Household, ACS
Bachelor's+
60%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
386
215,896 students

Quick facts

School name
Thomas Ditson
District
Billerica
Address
39 Cook Street, Billerica, MA 01821
Phone
(978) 528-8510
County
Middlesex County
Level
Elementary
Grade range
KG–04
Total enrollment
542
Teachers (FTE)
32
Student–teacher ratio
16.9:1
Locale
21-Suburb: Large
NCES ID
250267000186
Charter school
No
Virtual school
No

Related schools

Other schools in Billerica
Other schools in Billerica
Nearby schools

Frequently asked questions

About Thomas Ditson
How many students attend Thomas Ditson?
Thomas Ditson enrolls approximately 542 students in grades KG-04.
Is Thomas Ditson an elementary, middle, or high school?
Thomas Ditson is an elementary school covering grades KG-04.
How many teachers does Thomas Ditson have?
Thomas Ditson employs 32 FTE teachers, for a student-to-teacher ratio of 16.9:1.
What is the student diversity at Thomas Ditson?
Student demographics at Thomas Ditson are roughly 65% White, 11% Hispanic, 5% Black, 15% Asian, 4% Two or more.
Who oversees Thomas Ditson?
Thomas Ditson is overseen by Billerica in Middlesex County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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