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Chelmsford High School

200 Richardson Rd
North Chelmsford, MA 01863

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Tel: (978) 251-5111

chs.chelmsfordschools.org

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Chelmsford High School is a public high school founded in 1917. The current building is located in North Chelmsford, Massachusetts, United States, and was built in 1974. Before 1974 the high school was located in the current McCarthy Middle School building.

Serving 1,413 students in grades 9-12, Chelmsford High School ranks in the top 10% of all schools in Massachusetts for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).

The percentage of students achieving is 66% (which is higher than the Massachusetts state average of 41%). The percentage of students achieving is 79% (which is higher than the Massachusetts state average of 44%).

The student:teacher ratio of 14:1 is higher than the Massachusetts state level of 12:1.

Minority enrollment is 36% of the student body (majority Asian), which is lower than the Massachusetts state average of 47% (majority Hispanic).

Quick Stats (2025)

Grades: 9-12
Enrollment: 1,413 students
Student:Teacher Ratio: 14:1
Minority Enrollment: 36%
: 98% (Top 5% in MA)
: Top 10%
: 66% (Top 20%)
: 79% (Top 5%)
: 68% (Top 20%)
Source: National Center for Education Statistics (NCES), MA Dept. of Education

Top Rankings

Chelmsford High School ranks among the top 20% of public schools in Massachusetts for:

School Overview

Chelmsford High School's student population of 1,413 students has stayed relatively flat over five school years.

The teacher population of 101 teachers has declined by 6% over five school years.

Grades Offered

Grades 9-12
(Supplemental Virtual)

View Data

Distribution of Students By Grade Trends
Grade	Chelmsford High School
9	360
10	361
11	345
12	347

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Total Students

1,413 students

View Data

Total Students Trends Over Years (1991-2023)
Year	Chelmsford High School
2023	1,367
2022	1,342
2021	1,408
2020	1,444
2019	1,444
2018	1,484
2017	1,484
2016	1,509
2015	1,577
2014	1,575
2013	1,594
2012	1,596
2011	1,573
2010	1,586
2009	1,641
2008	1,678
2007	1,716
2006	1,304
2005	1,750
2004	1,723
2003	1,718
2002	1,697
2001	1,680
2000	1,601
1999	1,537
1998	1,521
1997	1,511
1996	1,482
1995	1,496
1994	1,480
1993	1,463
1992	1,499
1991	1,516

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Gender %

Total Classroom Teachers

101 teachers

View Data

Total Classroom Teachers Trends Over Years (2005-2023)
Year	Chelmsford High School
2023	101
2022	104
2021	104
2020	108
2019	108
2018	112
2017	112
2016	114
2015	113
2014	110
2013	112
2012	112
2011	109
2010	109
2009	113
2008	116
2007	118
2006	118
2005	118

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Year Founded

1917

School Rankings

Chelmsford High School ranks within the top 10% of all 1,631 schools in Massachusetts (based off of combined math and reading proficiency testing data).

The of Chelmsford High School is 0.55, 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)

#125 out of 1631 schools
(Top 10%)

View Data

Overall School Rank Trends Over Years (2011-2022)
Year	Chelmsford High School
2022	#125
2021	#67
2019	#63
2018	#31
2017	#10
2016	#33
2015	#24
2014	#24
2013	#31
2012	#61
2011	#51

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66%

41%

View Data

Math Proficiency Comparison Over Years (2011-2022)
Year	Chelmsford High School	Massachusetts	Chelmsford School District
2022	66%	41%	53%
2021	71%	37%	46%
2019	81%	51%	65%
2018	92%	52%	65%
2017	96%	53%	67%
2016	93%	64%	74%
2015	95%	61%	77%
2014	94%	61%	75%
2013	92%	61%	76%
2012	90%	59%	72%
2011	92%	59%	71%

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79%

44%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2011-2022)
Year	Chelmsford High School	Massachusetts	Chelmsford School District
2022	79%	44%	58%
2021	84%	49%	64%
2019	82%	54%	70%
2018	97%	56%	65%
2017	99%	54%	70%
2016	98%	71%	82%
2015	98%	69%	82%
2014	98%	69%	83%
2013	98%	69%	84%
2012	97%	69%	82%
2011	95%	70%	84%

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68%

44%

Student : Teacher Ratio

14:1

12:1

View Data

Student-Teacher Ratio Comparison Over Years (2005-2023)
Year	Chelmsford High School	Massachusetts	Chelmsford School District
2023	14:1	12:1	13:1
2022	13:1	12:1	13:1
2021	14:1	12:1	13:1
2020	13:1	13:1	13:1
2019	13:1	13:1	13:1
2018	13:1	13:1	14:1
2017	13:1	13:1	14:1
2016	13:1	13:1	14:1
2015	14:1	13:1	14:1
2014	14:1	14:1	15:1
2013	14:1	14:1	15:1
2012	14:1	14:1	15:1
2011	14:1	14:1	16:1
2010	15:1	14:1	16:1
2009	15:1	14:1	16:1
2008	15:1	14:1	15:1
2007	15:1	13:1	15:1
2006	11:1	13:1	14:1
2005	15:1	14:1	15:1

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American Indian

n/a

Asian

19%

View Data

Asian Student Percentage Comparison Over Years (1991-2023)
Year	Chelmsford High School	Massachusetts	Chelmsford School District
2023	18%	7%	18%
2022	17%	7%	17%
2021	16%	7%	17%
2020	14%	7%	15%
2019	14%	7%	15%
2018	12%	8%	14%
2017	12%	8%	14%
2016	11%	6%	13%
2015	10%	6%	14%
2014	9%	6%	11%
2013	9%	6%	11%
2012	9%	6%	11%
2011	8%	7%	10%
2010	8%	6%	10%
2009	7%	6%	9%
2008	7%	6%	9%
2007	8%	6%	9%
2006	9%	6%	9%
2005	9%	5%	8%
2004	8%	5%	7%
2003	8%	5%	7%
2002	8%	5%	7%
2001	6%	4%	6%
2000	6%	4%	6%
1999	5%	4%	6%
1998	5%	4%	6%
1997	5%	4%	6%
1996	1%	4%	5%
1995	4%	4%	5%
1994	2%	4%	5%
1993	3%	4%	5%
1992	3%	4%	4%
1991	2%	3%	3%

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Hispanic

25%

View Data

Hispanic Student Percentage Comparison Over Years (1990-2023)
Year	Chelmsford High School	Massachusetts	Chelmsford School District
2023	8%	24%	9%
2022	6%	23%	8%
2021	6%	22%	7%
2020	4%	21%	6%
2019	4%	21%	6%
2018	4%	19%	5%
2017	4%	19%	5%
2016	3%	19%	5%
2015	3%	18%	6%
2014	3%	17%	3%
2013	2%	16%	3%
2012	3%	16%	3%
2011	2%	15%	3%
2010	2%	15%	3%
2009	2%	14%	2%
2008	2%	15%	2%
2007	1%	14%	1%
2005	1%	12%	1%
2004	1%	12%	1%
2003	1%	11%	1%
2002	1%	11%	1%
1999	1%	10%	1%
1995	1%	9%	1%
1993	1%	9%	1%
1990	1%	7%	1%

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Black

10%

View Data

Black Student Percentage Comparison Over Years (1989-2023)
Year	Chelmsford High School	Massachusetts	Chelmsford School District
2023	4%	10%	4%
2022	4%	10%	4%
2021	4%	10%	4%
2020	4%	9%	3%
2019	4%	9%	3%
2018	3%	9%	3%
2017	3%	9%	3%
2016	2%	9%	2%
2015	1%	9%	2%
2014	3%	9%	4%
2013	2%	9%	3%
2012	3%	8%	3%
2011	2%	8%	3%
2010	2%	8%	3%
2009	2%	8%	3%
2008	1%	8%	2%
2007	1%	8%	1%
2005	1%	9%	1%
2004	1%	9%	1%
2003	1%	9%	1%
2002	1%	9%	1%
2001	1%	9%	1%
1994	1%	7%	1%
1990	1%	8%	1%
1989	1%	7%	1%

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White

64%

53%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	Chelmsford High School	Massachusetts	Chelmsford School District
2023	67%	54%	66%
2022	70%	56%	68%
2021	72%	57%	69%
2020	76%	59%	73%
2019	76%	59%	73%
2018	80%	61%	77%
2017	80%	61%	77%
2016	83%	63%	79%
2015	85%	64%	76%
2014	85%	65%	81%
2013	86%	66%	81%
2012	85%	67%	82%
2011	87%	68%	83%
2010	88%	69%	84%
2009	89%	70%	85%
2008	90%	71%	87%
2007	90%	72%	89%
2006	98%	73%	91%
2005	89%	74%	90%
2004	90%	74%	91%
2003	90%	75%	91%
2002	90%	75%	91%
2001	93%	76%	92%
2000	94%	77%	93%
1999	94%	77%	92%
1998	95%	78%	92%
1997	95%	78%	93%
1996	99%	79%	95%
1995	95%	79%	94%
1994	97%	80%	93%
1993	96%	80%	94%
1992	97%	81%	95%
1991	98%	81%	96%

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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	Chelmsford High School	Massachusetts	Chelmsford School District
2023	3%	5%	3%
2022	3%	4%	3%
2021	2%	4%	3%
2020	2%	4%	3%
2019	2%	4%	3%
2018	1%	3%	1%
2017	1%	3%	1%
2016	1%	3%	1%
2015	1%	3%	2%
2013	1%	3%	2%
2011	1%	2%	1%

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All Ethnic Groups

0.55

0.65

View Data

Diversity Score Comparison Over Years (1992-2023)
Year	Chelmsford High School	Massachusetts	Chelmsford School District
2023	0.51	0.64	0.53
2022	0.48	0.62	0.51
2021	0.45	0.62	0.50
2020	0.40	0.60	0.44
2019	0.40	0.60	0.44
2018	0.35	0.58	0.39
2017	0.35	0.58	0.39
2016	0.30	0.56	0.36
2015	0.27	0.55	0.36
2014	0.28	0.54	0.34
2013	0.25	0.53	0.33
2012	0.28	0.52	0.32
2011	0.24	0.51	0.31
2010	0.22	0.50	0.29
2009	0.20	0.51	0.27
2008	0.19	0.47	0.24
2007	0.19	0.46	0.21
2005	0.20	0.43	0.19
2004	0.19	0.43	0.17
2003	0.19	0.42	0.16
2002	0.19	0.41	0.16
2001	0.13	0.40	0.14
2000	0.11	0.39	0.14
1999	0.11	0.39	0.14
1998	0.10	0.38	0.14
1997	0.10	0.38	0.13
1996	0.02	0.36	0.10
1995	0.09	0.36	0.12
1994	0.06	0.35	0.11
1993	0.08	0.35	0.12
1992	0.06	0.34	0.10

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98%

90%

View Data

Graduation Rate Comparison Over Years (2012-2022)
Year	Chelmsford High School	Massachusetts	Chelmsford School District
2022	98%	90%	95%
2021	99%	87%	95%
2020	99%	88%	97%
2019	96%	88%	96%
2018	94%	87%	93%
2017	98%	87%	96%
2016	96%	87%	94%
2015	94%	87%	93%
2014	96%	86%	95%
2013	96%	85%	93%
2012	94%	84%	94%

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Participates in the

Yes

Eligible for

35%

View Data

Free Lunch Eligibility Comparison Over Years (2000-2023)
Year	Chelmsford High School	Massachusetts	Chelmsford School District
2023	10%	35%	10%
2022	10%	35%	10%
2021	9%	36%	10%
2020	9%	35%	10%
2019	9%	35%	10%
2015	8%	36%	10%
2014	7%	34%	6%
2013	8%	32%	8%
2012	6%	30%	6%
2011	5%	29%	6%
2010	4%	27%	5%
2009	4%	25%	4%
2008	2%	24%	3%
2007	2%	23%	3%
2006	3%	23%	3%
2005	1%	23%	2%
2004	1%	22%	2%
2001	1%	19%	2%
2000	1%	20%	1%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2004-2023)
Year	Chelmsford High School	Massachusetts	Chelmsford School District
2023	3%	4%	2%
2022	3%	4%	2%
2021	3%	4%	2%
2020	3%	4%	2%
2019	3%	4%	2%
2015	2%	4%	2%
2014	2%	5%	2%
2013	2%	5%	2%
2012	3%	5%	3%
2011	2%	5%	2%
2010	2%	6%	2%
2009	2%	6%	2%
2008	1%	5%	1%
2007	1%	5%	1%
2006	1%	5%	1%
2005	1%	5%	1%
2004	1%	5%	1%

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School Statewide Testing

View Education Department Test Scores

School District Name

Chelmsford School District

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

School Notes

School Mascot: Lion

Profile last updated: 02/09/2025

Frequently Asked Questions

What is Chelmsford High School's ranking?

Chelmsford High School is ranked #125 out of 1,631 schools, which ranks it among the top 10% of public schools in Massachusetts.

What schools are Chelmsford High School often compared to?

Chelmsford High Schoolis often viewed alongside schools like Tewksbury Memorial High School by visitors of our site.

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

66% of students have achieved math proficiency (compared to the 41% MA state average), while 79% of students have achieved reading proficiency (compared to the 44% MA state average).

What is the graduation rate of Chelmsford High School?

The graduation rate of Chelmsford High School is 98%, which is higher than the Massachusetts state average of 90%.

How many students attend Chelmsford High School?

1,413 students attend Chelmsford High School.

What is the racial composition of the student body?

64% of Chelmsford High School students are White, 19% of students are Asian, 8% of students are Hispanic, 5% of students are Black, and 4% of students are Two or more races.

What is the student:teacher ratio of Chelmsford High School?

Chelmsford High School has a student ration of 14:1, which is higher than the Massachusetts state average of 12:1.

What grades does Chelmsford High School offer ?

Chelmsford High School offers enrollment in grades 9-12 (Supplemental Virtual).

What school district is Chelmsford High School part of?

Chelmsford High School is part of Chelmsford School District.

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Quick Stats (2025)

Grades: 9-12
Enrollment: 1,413 students
Student:Teacher Ratio: 14:1
Minority Enrollment: 36%
: 98% (Top 5%)
: Top 10%
: 66% (Top 20%)
: 79% (Top 5%)
: 68% (Top 20%)
Source: National Center for Education Statistics (NCES), MA Dept. of Education