Waltham, Massachusetts Population 2021

62,359
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Waltham is a city located in Massachusetts. With a 2020 population of 62,359, it is the 16th largest city in Massachusetts and the 612th largest city in the United States. Waltham is currently declining at a rate of -0.11% annually but its population has increased by 2.85% since the most recent census, which recorded a population of 60,632 in 2010. Waltham reached it's highest population of 63,114 in 2014. Spanning over 14 miles, Waltham has a population density of 4,893 people per square mile.

The average household income in Waltham is $115,461 with a poverty rate of 9.31%. The median rental costs in recent years comes to $1,726 per month, and the median house value is $536,500. The median age in Waltham is 34.3 years, 34.1 years for males, and 34.5 years for females. For every 100 females there are 95.4 males.

Waltham Demographics

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

  • White: 71.91%
  • Asian: 11.66%
  • Black or African American: 7.09%
  • Other race: 5.08%
  • Two or more races: 3.83%
  • Native American: 0.43%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Waltham, Massachusetts is 62,359, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 62,563.The last official US Census in 2010 recorded the population at 60,632.

Waltham, Massachusetts Population 2021

Population by Race

Race Population Percentage
White45,14671.91%
Asian7,32111.66%
Black or African American4,4507.09%
Some Other Race3,1915.08%
Two or More Races2,4023.83%
American Indian and Alaska Native2670.43%
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Waltham Population by Race

Waltham Population Pyramid 2021

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Waltham Median Age

34.3


Total

34.1


Male

34.5


Female

Waltham Adults

There are 54,166 adults, (8,679 of whom are seniors) in Waltham.

Waltham Age Dependency

38

Age Dependency Ratio

19.1

Old Age Dependency Ratio

18.9

Child Dependency Ratio

Waltham Sex Ratio

Female

32,132

51.18%

Male

30,645

48.82%

Waltham Population by Age

Waltham Renter vs Owner Occupied by Household Type

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Waltham Household Types

Type Owner Renter
Married67.2%32.8%
All51.7%48.3%
Female50.1%49.9%
Male44%56%
Non Family38.7%61.3%

51.7%

Rate of Home Ownership

Waltham Households and Families

Type Count Average Size Owned
All23,6902.3351.7
Non Family10,9471.4638.7
Married9,8273.0167.2
Female1,8393.1350.1
Male1,0773.5544

3.02

Average Family Size

2.33

Average Household Size

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Waltham Households by Type

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Education Attained Count Percentage
Less Than 9th Grade1,7254.03%
9th to 12th Grade1,7003.97%
High School Graduate8,21419.18%
Some College5,30712.39%
Associates Degree2,6516.19%
Bachelors Degree12,61129.45%
Graduate Degree10,61624.79%
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Waltham Educational Attainment by Sex (over 25)

Waltham Educational Attainment by Race

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Name Total High School Bachelors
White29,99428,37516,998
Asian5,0284,7123,526
Hispanic4,6003,2371,175
Black2,5702,4131,130
Other Race1,9681,220236
Multiple Races1,032897473
Native American236152123

The highest rate of high school graduation is among white people with a rate of 94.60%.

The highest rate of bachelors degrees is among asian people with a rate of 70.13%.

Waltham Educational Attainment by Race

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Name Average Male Female
Overall$54,440$64,526$48,429
Less Than High School$25,507$26,627$22,863
High School Grad$41,803$44,835$34,082
Some College$37,943$47,568$33,074
Bachelors Degree$64,835$79,483$52,867
Graduate Degree$82,398$107,065$71,787

$54,440

Average Earnings

$64,526

Average Male

$48,429

Average Female

Waltham Earnings by Educational Attainment

Waltham Language by Age

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Waltham Language

67.54% of Waltham residents speak only English, while 32.46% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 11.49% of the population.

Waltham Language

Waltham Poverty by Race

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Name Total In Poverty Poverty Rate
White36,8082,4466.65%
Hispanic7,8341,44918.50%
Asian6,13073511.99%
Other3,03265521.60%
Multiple2,03655427.21%
Black4,00849712.40%
Native267176.37%

9.31%

Overall Poverty Rate

9.16%

Male Poverty Rate

9.44%

Female Poverty Rate

Poverty in Waltham

The race most likely to be in poverty in Waltham is Multiple, with 27.21% below the poverty level.

The race least likely to be in poverty in Waltham is Native, with 6.37% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.90%. Among those working part-time, it was 14.21%, and for those that did not work, the poverty rate was 22.14%.

Waltham Poverty

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Name Poverty
Less Than High School21.89%
High School9.15%
Some College7.73%
Bachelors or Greater3.50%

Waltham Poverty Rate by Education

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Name Poverty
Male Unemployed36.69%
Female Unemployed25.28%
Male Employed4.26%
Female Employed3.37%

Waltham Poverty Rate by Employment Status and Sex

Waltham Income by Household Type

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Name Median Mean
Households$95,964$115,461
Families$115,920$133,042
Married Families$129,555-
Non Families$71,660$91,812
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Income by Household Type

Waltham Marital Status

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Marriage Rates

39.9%

Overall Marriage Rate

41.2%

Male Marriage Rate

38.7%

Female Marriage Rate

Waltham Married by Age and Sex

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Waltham Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Waltham Marital Status by Race

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Waltham Marital Status

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1,795

Number of Veterans

1,727

Male Veterans

68

Female Veterans

War Veterans
Vietnam701
Korea278
First Gulf War182
World War II164
Second Gulf War145

Waltham Veterans by War

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Age Group Veterans
75+649
65 to 74518
55 to 64336
35 to 54192
18 to 34100

Waltham Veterans by Age

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Name Veterans % of Total
White1,6884.26%
2 or More382.29%
Hispanic350.56%
Asian280.42%
Black250.71%
Indian156.22%
Other10.04%

Waltham Veterans by Race

Waltham Veterans by Education

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6.80%

Veteran Poverty Rate

34.16%

Veteran Disability Rate

Waltham Veterans by Education

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70.8%

Labor Force Participation

68.7%

Employment Rate

3%

Unemployment Rate

Waltham Employment by Age

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Waltham Employment by Race

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Waltham Employment by Education

Origin of Non-Citizens

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

Origin of Naturalized Citizens

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47.80%

Born in Massachusetts

72.46%

Native Born

27.54%

Foreign Born

16.27%

Non Citizen

11.27%

Naturalized

Place of Birth

72.46% of Waltham residents were born in the United States, with 47.80% having been born in Massachusetts. 16.27% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Waltham Place of Birth

Year Population Growth Annual Growth Rate
202162,359-68-0.11%
202062,427-68-0.11%
201962,495-68-0.11%
201862,563-259-0.41%
201762,822-117-0.19%
201662,939-64-0.10%
201563,003-111-0.18%
201463,1147871.26%
201362,3272800.45%
201262,0476651.08%
201161,3824930.81%
201060,8891,6630.28%
200059,2261,3480.23%
199057,878-322-0.06%
198058,200-3,382-0.56%
197061,5826,1691.06%
196055,4138,2261.62%
195047,1877,1671.66%
194040,0207730.20%
193039,2478,3322.42%
192030,9153,0811.06%
191027,8344,3531.72%
190023,4814,7742.30%
189018,7076,9954.79%
188011,7122,6472.60%
18709,0652,6683.55%
18606,3971,9333.66%
18504,4640.00%

Waltham Population by Year