Chelmsford, Massachusetts Population 2024

35,836

Chelmsford is a city located in Middlesex County Massachusetts. Chelmsford has a 2024 population of 35,836. Chelmsford is currently declining at a rate of -0.1% annually and its population has decreased by -1.42% since the most recent census, which recorded a population of 36,353 in 2020.

The average household income in Chelmsford is $152,377 with a poverty rate of 4.71%. The median age in Chelmsford is 43.2 years: 43.3 years for males, and 43.1 years for females.

Chelmsford Demographics

According to the most recent ACS, the racial composition of Chelmsford was:

  • White: 82.56%
  • Asian: 8.77%
  • Two or more races: 4.83%
  • Black or African American: 2.03%
  • Other race: 1.71%
  • Native American: 0.1%
  • Native Hawaiian or Pacific Islander: 0%
Land Area (mi²)
22.4 sq mi
Density (mi²)
1,601.10/sq mi
Growth Since 2020
-1.42% (-517)
The current population of Chelmsford, Massachusetts is 35,836 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 36,353.

Population by Race

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Race
Population
Percentage (of total)
White29,87282.56%
Asian3,1748.77%
Two or more races1,7484.83%
Black or African American7342.03%
Other race6181.71%
Native American360.1%
Native Hawaiian or Pacific Islander00%

White

Asian

Two or more races

Black or African American

Other race

Native American

Native Hawaiian or Pacific Islander

Chelmsford Population by Race

Chelmsford Population Pyramid 2024

Chelmsford Median Age

43.2

Total

43.3

Male

43.1

Female

Chelmsford Adults

There are 28,703 adults, (6,644 of whom are seniors) in Chelmsford.

Chelmsford Age Dependency

64

Age Dependency Ratio

30.1

Old Age Dependency Ratio

33.9

Child Dependency Ratio

Chelmsford Sex Ratio

Female18,55751.29%
Male17,62548.71%

Chelmsford Population by Age

Chelmsford Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All13,5212.6682.717.3
Married8,3053.28937
Non Family3,6321.2261.638.4
Female1,2992.7475.824.2
Male2852.3684.215.8

3.14

Average Family Size

2.66

Average Household Size

82.7%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Chelmsford Households and Families

Male

Female

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Education Attained
Count
Percentage
9th to 12th Grade7032.73%
Associates Degree2,4289.43%
Bachelors Degree7,62229.59%
Graduate Degree6,17023.96%
High School Graduate4,38317.02%
Less Than 9th Grade3501.36%
Some College4,09915.92%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Chelmsford Educational Attainment by Sex (over 25)

Chelmsford Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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Race
Total
High School
Bachelors
White21,46820,85011,261
Asian2,2802,0641,737
2+ Races916833357
Hispanic843791253
Black426333226
Other Race397358115
Native American31319

The highest rate of high school graduation is among native american people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 76.18%.

Chelmsford Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Bachelors Degree$93,399$113,471$74,608
Graduate Degree$106,505$130,540$89,534
High School Graduate$49,453$69,727$35,750
Less Than 9th Grade$47,772$63,208$43,370
Overall$80,368$96,777$64,156
Some College$57,540$66,285$48,088

$80,368

Average Earnings

$96,777

Average Male

$64,156

Average Female

Chelmsford Earnings by Educational Attainment

Chelmsford Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Chelmsford Language

85.27% of Chelmsford residents speak only English, while 14.73% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 7.88% of the population.

Chelmsford Language

Chelmsford Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White29,1591,2744.37%
Asian3,1631906.01%
Hispanic1,56016210.38%
Other6078514%
Multiple1,748734.18%
Black722385.26%
Native361130.56%

4.71%

Overall Poverty Rate

4.29%

Male Poverty Rate

5.12%

Female Poverty Rate

Poverty in Chelmsford

The race most likely to be in poverty in Chelmsford is Native, with 30.56% below the poverty level.

The race least likely to be in poverty in Chelmsford is Multiple, with 4.18% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.63%. Among those working part-time, it was 5.89%, and for those that did not work, the poverty rate was 11.23%.

Chelmsford Poverty

rate

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Rate
Poverty
Less Than 9th Grade29.78%
High School7.16%
Some College3.38%
Bachelors or Greater1.78%

Chelmsford Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed21.95%
Male Unemployed13.94%
Female Employed2.19%
Male Employed1.51%

Chelmsford Poverty Rate by Employment Status and Sex

Chelmsford Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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Name
Median
Mean
Families$155,471$176,193
Households$134,291$152,377
Married Families$170,141$-999,999,999
Non Families$64,917$81,249

mean

median

Income by Household Type

Chelmsford Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

58.7%

Overall Marriage Rate

61.2%

Male Marriage Rate

56.3%

Female Marriage Rate

Chelmsford Married by Age and Sex

male

female

Chelmsford Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

Chelmsford Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Chelmsford Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,422

Number of Veterans

1,312

Male Veterans

110

Female Veterans

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War
Veterans
Vietnam584
First Gulf War260
Korea177
Second Gulf War161
World War II28

Chelmsford Veterans by War

count

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Age Group
Veterans
75+527
65 to 74367
35 to 54271
55 to 64248
18 to 349

Chelmsford Veterans by Age

count

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Name
Veterans
% of Total
White1,2875.3%
Hispanic676.29%
Other Race6213.45%
2+ Races333.09%
Black214.63%
Native American1135.48%
Asian80.34%

Chelmsford Veterans by Race

Chelmsford Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

2.4%

Veteran Poverty Rate

27.36%

Veteran Disability Rate

Chelmsford Veterans by Education

LaborForceParticipation

69.5%

Labor Force Participation

65.9%

Employment Rate

5%

Unemployment Rate

Chelmsford Employment by Age

LaborForceParticipation

Chelmsford Employment by Race

LaborForceParticipation

Chelmsford Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

67.17%

Born in Chelmsford

88.09%

Native Born

11.91%

Foreign Born

4.36%

Non Citizen

7.56%

Naturalized

Place of Birth

88.09% of Chelmsford residents were born in the United States, with 67.17% having been born in Massachusetts. 4.36% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Chelmsford Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202935,661-35-0.1%
202835,696-35-0.1%
202735,731-35-0.1%
202635,766-35-0.1%
202535,801-35-0.1%
202435,836-35-0.1%
202335,871-35-0.1%
202235,906-35-0.1%
202135,941-412-1.13%
202036,3539622.72%
201935,3911860.53%
201835,2051850.53%
201735,020-6-0.02%
201635,026-62-0.18%
201535,088710.2%
201435,0172450.7%
201334,7721960.57%
201234,5763120.91%
201134,2643641.07%
201033,90000%

Chelmsford Population by Year