Thomas Ditson (Ranked Top 50% for 2025-26)

39 Cook Street
Billerica, MA 01821

( shown in map)

Top 50%

Serving 551 students in grades Kindergarten-4, Thomas Ditson ranks in the top 50% of all schools in Massachusetts for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).

The percentage of students achieving is 55% (which is higher than the Massachusetts state average of 42%). The percentage of students achieving is 49% (which is higher than the Massachusetts state average of 44%).

The student-teacher ratio of 17:1 is higher than the Massachusetts state level of 12:1.

Minority enrollment is 33% of the student body (majority Asian and Hispanic), which is lower than the Massachusetts state average of 47% (majority Hispanic).

Quick Facts (2025-26)

Grades: Kindergarten-4
Enrollment: 551 students
Student-Teacher Ratio: 17:1
Minority Enrollment: 33%
: Top 50% in MA
: 55% (Top 30%)
: 49% (Top 50%)
Source: National Center for Education Statistics (NCES), MA Dept. of Education

Top Rankings

Thomas Ditson ranks among the top 20% of public schools in Massachusetts for:

School Overview

Thomas Ditson's student population of 551 students has grown by 8% over five school years.

The teacher population of 33 teachers has declined by 10% over five school years.

Grades Offered

Grades Kindergarten-4
(Supplemental Virtual)

View Data

Distribution of Students By Grade Trends
Grade	Thomas Ditson
Kind	105
1	116
2	115
3	112
4	103

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Total Students

551 students

View Data

Total Students Trends Over Years (1991-2023)
Year	Thomas Ditson
2023	557
2022	532
2021	527
2020	509
2019	509
2018	542
2017	542
2016	548
2015	576
2014	614
2013	645
2012	699
2011	727
2010	752
2009	738
2008	759
2007	754
2006	787
2005	784
2004	758
2003	742
2002	706
2001	523
2000	498
1999	406
1998	480
1997	499
1996	514
1995	484
1994	483
1993	473
1992	455
1991	448

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Gender %

Total Classroom Teachers

33 teachers

View Data

Total Classroom Teachers Trends Over Years (2005-2023)
Year	Thomas Ditson
2023	33
2022	34
2021	36
2020	37
2019	37
2018	41
2017	41
2016	40
2015	41
2014	45
2013	48
2012	47
2011	47
2010	48
2009	48
2008	46
2007	49
2006	49
2005	49

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School Calendar

Last Day of School

Fri. Jun 19, 2026

School Motto

Improving student learning outcomes is the top priority for all of us here at Billerica 51��s.

School Rankings

Thomas Ditson ranks within the top 50% of all 1,626 schools in Massachusetts (based off of combined math and reading proficiency testing data).

The of Thomas Ditson is 0.52, which is less than the diversity score at state average of 0.65. The school's diversity has stayed relatively flat over five school years.

This School

State Level (MA)

#580 out of 1626 schools
(Top 50%)

View Data

Overall School Rank Trends Over Years (2012-2023)
Year	Thomas Ditson
2023	#580
2022	#505
2021	#565
2019	#700
2018	#889
2017	#820
2016	#1004
2015	#901
2014	#1061
2013	#906
2012	#1116

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55%

42%

View Data

Math Proficiency Comparison Over Years (2012-2023)
Year	Thomas Ditson	Massachusetts	Billerica School District
2023	55%	42%	43%
2022	57%	41%	41%
2021	46%	37%	36%
2019	52%	51%	50%
2018	48%	52%	55%
2017	55%	53%	54%
2016	64%	64%	66%
2015	62%	61%	60%
2014	62%	61%	59%
2013	66%	61%	58%
2012	54%	59%	56%

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49%

44%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2011-2022)
Year	Thomas Ditson	Massachusetts	Billerica School District
2022	49%	44%	44%
2021	59%	49%	51%
2019	61%	54%	55%
2018	59%	56%	55%
2017	52%	54%	53%
2016	63%	71%	72%
2015	66%	69%	71%
2014	56%	69%	72%
2013	62%	69%	70%
2012	58%	69%	70%
2011	57%	70%	71%

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Student-Teacher Ratio

17:1

12:1

View Data

Student-Teacher Ratio Comparison Over Years (2005-2023)
Year	Thomas Ditson	Massachusetts	Billerica School District
2023	17:1	12:1	13:1
2022	16:1	12:1	13:1
2021	15:1	12:1	12:1
2020	14:1	13:1	13:1
2019	14:1	13:1	13:1
2018	13:1	13:1	13:1
2017	13:1	13:1	13:1
2016	14:1	13:1	13:1
2015	14:1	13:1	14:1
2014	14:1	14:1	14:1
2013	13:1	14:1	14:1
2012	15:1	14:1	15:1
2011	15:1	14:1	15:1
2010	16:1	14:1	15:1
2009	15:1	14:1	14:1
2008	17:1	14:1	15:1
2007	15:1	13:1	15:1
2006	16:1	13:1	15:1
2005	16:1	14:1	15:1

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American Indian

n/a

Asian

14%

View Data

Asian Student Percentage Comparison Over Years (1991-2023)
Year	Thomas Ditson	Massachusetts	Billerica School District
2023	12%	7%	11%
2022	10%	7%	10%
2021	10%	7%	9%
2020	9%	7%	8%
2019	9%	7%	8%
2018	10%	8%	8%
2017	10%	8%	8%
2016	9%	6%	7%
2015	11%	6%	7%
2014	11%	6%	5%
2013	11%	6%	5%
2012	9%	6%	4%
2011	9%	7%	4%
2010	7%	6%	3%
2009	6%	6%	3%
2008	6%	6%	3%
2007	5%	6%	3%
2006	4%	6%	1%
2005	2%	5%	3%
2004	3%	5%	2%
2003	2%	5%	2%
2002	2%	5%	3%
2001	2%	4%	3%
2000	2%	4%	3%
1999	2%	4%	2%
1998	2%	4%	2%
1997	2%	4%	2%
1996	3%	4%	3%
1995	2%	4%	2%
1994	2%	4%	1%
1993	2%	4%	2%
1992	2%	4%	1%
1991	2%	3%	1%

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Hispanic

10%

25%

View Data

Hispanic Student Percentage Comparison Over Years (1993-2023)
Year	Thomas Ditson	Massachusetts	Billerica School District
2023	10%	24%	9%
2022	9%	23%	9%
2021	7%	22%	8%
2020	7%	21%	7%
2019	7%	21%	7%
2018	6%	19%	5%
2017	6%	19%	5%
2016	6%	19%	4%
2015	4%	18%	4%
2014	4%	17%	4%
2013	3%	16%	3%
2012	4%	16%	3%
2011	3%	15%	2%
2010	3%	15%	2%
2009	3%	14%	2%
2008	2%	15%	2%
2007	1%	14%	1%
2006	1%	13%	1%
2005	2%	12%	2%
2004	2%	12%	2%
2003	3%	11%	2%
2002	3%	11%	2%
2001	2%	11%	1%
2000	1%	10%	1%
1999	1%	10%	1%
1998	1%	10%	1%
1997	1%	10%	1%
1996	2%	9%	1%
1995	1%	9%	1%
1994	1%	9%	1%
1993	1%	9%

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Black

10%

View Data

Black Student Percentage Comparison Over Years (1992-2023)
Year	Thomas Ditson	Massachusetts	Billerica School District
2023	3%	10%	6%
2022	2%	10%	5%
2021	4%	10%	5%
2020	5%	9%	5%
2019	5%	9%	5%
2018	4%	9%	3%
2017	4%	9%	3%
2016	4%	9%	3%
2015	1%	9%	3%
2014	4%	9%	2%
2013	3%	9%	2%
2012	3%	8%	2%
2011	2%	8%	2%
2010	1%	8%	1%
2009	1%	8%	2%
2008	1%	8%	2%
2007	1%	8%	1%
2006	1%	8%
2005	1%	9%	1%
2001	2%	9%	1%
2000	1%	9%	1%
1999	1%	9%	1%
1998	1%	8%	1%
1994	1%	7%	1%
1992	1%	7%	1%

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White

67%

53%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	Thomas Ditson	Massachusetts	Billerica School District
2023	70%	54%	71%
2022	74%	56%	73%
2021	74%	57%	74%
2020	75%	59%	78%
2019	75%	59%	78%
2018	76%	61%	82%
2017	76%	61%	82%
2016	77%	63%	84%
2015	78%	64%	84%
2014	77%	65%	87%
2013	80%	66%	88%
2012	81%	67%	89%
2011	84%	68%	91%
2010	87%	69%	92%
2009	90%	70%	92%
2008	91%	71%	93%
2007	93%	72%	95%
2006	94%	73%	97%
2005	95%	74%	94%
2004	95%	74%	95%
2003	95%	75%	95%
2002	94%	75%	95%
2001	94%	76%	95%
2000	96%	77%	95%
1999	96%	77%	96%
1998	96%	78%	96%
1997	97%	78%	96%
1996	95%	79%	95%
1995	97%	79%	96%
1994	96%	80%	97%
1993	97%	80%	97%
1992	97%	81%	97%
1991	96%	81%	97%

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Hawaiian

n/a

Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2011-2023)
Year	Thomas Ditson	Massachusetts	Billerica School District
2023	4%	5%	3%
2022	5%	4%	3%
2021	5%	4%	4%
2020	4%	4%	2%
2019	4%	4%	2%
2018	4%	3%	2%
2017	4%	3%	2%
2016	4%	3%	2%
2015	6%	3%	2%
2014	4%	3%	2%
2013	3%	3%	2%
2012	3%	3%	2%
2011	2%	2%	1%

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All Ethnic Groups

0.52

0.65

View Data

Diversity Score Comparison Over Years (1991-2023)
Year	Thomas Ditson	Massachusetts	Billerica School District
2023	0.49	0.64	0.48
2022	0.44	0.62	0.45
2021	0.44	0.62	0.44
2020	0.42	0.60	0.39
2019	0.42	0.60	0.39
2018	0.41	0.58	0.32
2017	0.41	0.58	0.32
2016	0.40	0.56	0.29
2015	0.38	0.55	0.27
2014	0.39	0.54	0.24
2013	0.35	0.53	0.23
2012	0.34	0.52	0.21
2011	0.29	0.51	0.18
2010	0.24	0.50	0.16
2009	0.20	0.51	0.17
2008	0.17	0.47	0.14
2007	0.13	0.46	0.10
2006	0.12	0.45	0.07
2005	0.10	0.43	0.11
2004	0.10	0.43	0.10
2003	0.10	0.42	0.10
2002	0.12	0.41	0.09
2001	0.12	0.40	0.09
2000	0.08	0.39	0.09
1999	0.08	0.39	0.08
1998	0.08	0.38	0.08
1997	0.06	0.38	0.08
1996	0.09	0.36	0.09
1995	0.06	0.36	0.07
1994	0.08	0.35	0.06
1993	0.06	0.35	0.06
1992	0.06	0.34	0.06
1991	0.08	0.33	0.06

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Participates in the

Yes

Eligible for

17%

35%

View Data

Free Lunch Eligibility Comparison Over Years (2000-2023)
Year	Thomas Ditson	Massachusetts	Billerica School District
2023	17%	35%	19%
2022	18%	35%	20%
2021	18%	36%	20%
2020	19%	35%	20%
2019	19%	35%	20%
2015	16%	36%	18%
2014	11%	34%	12%
2013	13%	32%	14%
2012	10%	30%	11%
2011	9%	29%	8%
2010	1%	27%	2%
2009	1%	25%	2%
2008	3%	24%	3%
2007	3%	23%	3%
2006	5%	23%	4%
2005	3%	23%	4%
2004	2%	22%	4%
2001	5%	19%	4%
2000	4%	20%	3%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2000-2023)
Year	Thomas Ditson	Massachusetts	Billerica School District
2023	2%	4%	3%
2022	2%	4%	4%
2021	2%	4%	4%
2020	2%	4%	4%
2019	2%	4%	4%
2015	2%	4%	3%
2014	2%	5%	4%
2013	4%	5%	4%
2012	3%	5%	3%
2011	3%	5%	3%
2008	1%	5%	1%
2007	2%	5%	2%
2006	3%	5%	2%
2005	2%	5%	2%
2004	3%	5%	2%
2001	3%	5%	3%
2000	1%	5%	2%

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School Statewide Testing

School District Name

Billerica School District

Source: National Center for Education Statistics (NCES), MA Dept. of Education

Profile last updated: 02/09/2025

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Frequently Asked Questions

What is Thomas Ditson's ranking?

Thomas Ditson is ranked #580 out of 1,626 schools, which ranks it among the top 50% of public schools in Massachusetts.

What percent of students have achieved state testing proficiency in math and reading?

55% of students have achieved math proficiency (compared to the 42% MA state average), while 49% of students have achieved reading proficiency (compared to the 44% MA state average).

How many students attend Thomas Ditson?

551 students attend Thomas Ditson.

What is the racial composition of the student body?

67% of Thomas Ditson students are White, 14% of students are Asian, 10% of students are Hispanic, 4% of students are Black, 4% of students are Two or more races, and 1% of students are American Indian.

What is the student-teacher ratio of Thomas Ditson?

Thomas Ditson has a student ration of 17:1, which is higher than the Massachusetts state average of 12:1.

What grades does Thomas Ditson offer ?

Thomas Ditson offers enrollment in grades Kindergarten-4 (Supplemental Virtual).

What school district is Thomas Ditson part of?

Thomas Ditson is part of Billerica School District.

In what neighborhood is Thomas Ditson located?

Thomas Ditson is located in the Pinehurst neighborhood of Billerica, MA. There are 1 other public schools located in Pinehurst.