Middlesex County, Massachusetts Population 2021

Middlesex County, Massachusetts's estimated population is 1,618,160 with a growth rate of 0.20% in the past year according to the most recent United States census data. Middlesex County, Massachusetts is the 2nd largest county in Massachusetts. The 2010 Population was 1,507,680 and has seen a growth of 7.33% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
20211,618,1603,2300.20%
20201,614,9303,2300.20%
20191,611,7003,2300.20%
20181,608,4704,5300.28%
20171,603,9409,2800.58%
20161,594,6609,2300.58%
20151,585,43010,4400.66%
20141,574,99014,7900.95%
20131,560,20017,3301.12%
20121,542,87018,0201.18%
20111,524,85017,1701.14%
20101,507,680109,2107.81%
19901,398,47031,4402.30%
19801,367,030-30,240-2.16%
19701,397,270158,53012.80%
19601,238,740174,17016.36%
19501,064,57093,1809.59%
1940971,39036,4663.90%
1930934,924156,57220.12%
1920778,352108,43716.19%
1910669,915104,21918.42%
1900565,696134,52931.20%
1890431,167113,33735.66%
1880317,83043,47715.85%
1870274,35357,99926.81%
1860216,35454,97134.06%
1850161,38354,77251.38%
1840106,61128,65036.75%
183077,96116,48926.82%
182061,4728,68316.45%
181052,7895,86112.49%
180046,9284,1919.81%
179042,7370.00%
2021 Growth Rate
0.20%
Founded
May 10, 1643
County Seat
2010 Population
1,507,680
Growth Since 2010
7.33%
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Middlesex County, Massachusetts Population Growth

Population by Race

Race Population Percentage
White1,227,26976.66%
Asian190,90511.93%
Black or African American85,5835.35%
Two or More Races47,8662.99%
Some Other Race45,3122.83%
American Indian and Alaska Native3,1630.20%
Native Hawaiian and Other Pacific Islander7420.05%
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Middlesex County, Massachusetts Population by Race

Middlesex County, Massachusetts Population Pyramid $2021

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Middlesex County, Massachusetts Median Age

38.5


Total

37.1


Male

40


Female

Middlesex County, Massachusetts Adults

There are 1,281,360 adults, (239,915 of whom are seniors) in Middlesex County, Massachusetts.

Middlesex County, Massachusetts Age Dependency

53.7

Age Dependency Ratio

23

Old Age Dependency Ratio

30.7

Child Dependency Ratio

Middlesex County, Massachusetts Sex Ratio

Female

817,769

51.08%

Male

783,073

48.92%

Middlesex County, Massachusetts Population by Age

Middlesex County, Massachusetts Renter vs Owner Occupied by Household Type

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Middlesex County, Massachusetts Household Types

Type Owner Renter
Married79.5%20.5%
All62.4%37.6%
Male50.9%49.1%
Female49.7%50.3%
Non Family41.9%58.1%

62.4%

Rate of Home Ownership

Middlesex County, Massachusetts Households and Families

Type Count Average Size Owned
All604,3842.5562.4
Married311,5093.279.5
Non Family213,4591.441.9
Female56,6413.149.7
Male22,7753.1450.9

3.12

Average Family Size

2.55

Average Household Size

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Middlesex County, Massachusetts Households by Type

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Education Attained Count Percentage
Less Than 9th Grade37,0073.29%
9th to 12th Grade36,6833.27%
High School Graduate213,95819.05%
Some College138,67112.34%
Associates Degree64,7745.77%
Bachelors Degree308,95827.50%
Graduate Degree323,27428.78%
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Middlesex County, Massachusetts Educational Attainment by Sex (over 25)

Middlesex County, Massachusetts Educational Attainment by Race

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Race Total High School Bachelors
White843,994807,989487,790
Asian131,097117,98392,026
Hispanic73,16856,31923,554
Black53,91947,83618,334
Other Race28,99020,9885,833
2+ Races19,89417,97011,041
Native American1,9141,665440
Islander473449155

The highest rate of high school graduation is among white people with a rate of 95.73%.

The highest rate of bachelors degrees is among asian people with a rate of 70.20%.

Middlesex County, Massachusetts Educational Attainment by Race

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Name Average Male Female
Overall$61,221$72,218$51,008
Less Than 9th Grade$26,907$32,106$21,413
High School Graduate$38,743$45,922$29,155
Some College$44,769$52,955$38,124
Bachelors Degree$69,313$84,616$56,201
Graduate Degree$90,051$110,014$74,837

$61,221

Average Earnings

$72,218

Average Male

$51,008

Average Female

Middlesex County, Massachusetts Earnings by Educational Attainment

Middlesex County, Massachusetts Language by Age

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Middlesex County, Massachusetts Language

73.45% of Middlesex County, Massachusetts residents speak only English, while 26.55% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 11.56% of the population.

Middlesex County, Massachusetts Language

Middlesex County, Massachusetts Poverty by Race

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Name Total In Poverty Poverty Rate
White1,116,40059,2855.31%
Hispanic121,57222,36718.40%
Asian182,70617,2259.43%
Black80,96812,57815.53%
Other42,9016,46415.07%
Multiple45,1244,3799.70%
Native3,06184627.64%
Islander711547.59%

7.44%

Overall Poverty Rate

6.75%

Male Poverty Rate

8.09%

Female Poverty Rate

Poverty in Middlesex County, Massachusetts

The race most likely to be in poverty in Middlesex County, Massachusetts is Native, with 27.64% below the poverty level.

The race least likely to be in poverty in Middlesex County, Massachusetts is White, with 5.31% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.89%. Among those working part-time, it was 9.48%, and for those that did not work, the poverty rate was 17.30%.

Middlesex County, Massachusetts Poverty

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Name Poverty
Less Than 9th Grade19.40%
High School10.35%
Some College6.83%
Bachelors or Greater3.44%

Middlesex County, Massachusetts Poverty Rate by Education

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Rate Poverty
Female Unemployed19.98%
Male Unemployed19.59%
Female Employed3.98%
Male Employed2.45%

Middlesex County, Massachusetts Poverty Rate by Employment Status and Sex

Middlesex County, Massachusetts Income by Household Type

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Name Median Mean
Households$102,603$135,425
Families$128,001$162,472
Married Families$145,841$182,334
Non Families$59,937$81,778
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Income by Household Type

Middlesex County, Massachusetts Marital Status

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Marriage Rates

50.3%

Overall Marriage Rate

52.0%

Male Marriage Rate

48.6%

Female Marriage Rate

Middlesex County, Massachusetts Married by Age and Sex

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Middlesex County, Massachusetts Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Middlesex County, Massachusetts Marital Status by Race

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Middlesex County, Massachusetts Marital Status

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57,176

Number of Veterans

53,235

Male Veterans

3,941

Female Veterans

War Veterans
Vietnam19,113
Second Gulf War9,001
First Gulf War7,505
Korea7,330
World War II4,097

Middlesex County, Massachusetts Veterans by War

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Age Group Veterans
75+19,648
65 to 7414,458
35 to 5410,501
55 to 648,375
18 to 344,194

Middlesex County, Massachusetts Veterans by Age

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Name Veterans % of Total
White52,7135.27%
Black1,9132.98%
Hispanic1,7271.93%
Asian1,1450.75%
2+ Races8763.32%
Other Race4351.27%
Native American652.77%
Islander294.83%

Middlesex County, Massachusetts Veterans by Race

Middlesex County, Massachusetts Veterans by Education

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5.16%

Veteran Poverty Rate

28.37%

Veteran Disability Rate

Middlesex County, Massachusetts Veterans by Education

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70.1%

Labor Force Participation

67.3%

Employment Rate

3.8%

Unemployment Rate

Middlesex County, Massachusetts Employment by Age

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Middlesex County, Massachusetts Employment by Race

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Middlesex County, Massachusetts 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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54.26%

Born in Middlesex County, Massachusetts

78.62%

Native Born

21.38%

Foreign Born

10.73%

Non Citizen

10.64%

Naturalized

Place of Birth

78.62% of Middlesex County, Massachusetts residents were born in the United States, with 54.26% having been born in Massachusetts. 10.73% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Middlesex County, Massachusetts Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources