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Middlesex County, Massachusetts

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At a glance

Market profile

Population
1,638,365
Households
634,215
Average household size
2.49
Median age
38.9 years
Median household income
$130,847
Housing units
664,267
Population comparison
2020 Census1,632,002
2024 estimate1,638,365
Change+0.4%

People

Who lives here

Population
1,638,365
Median age
38.9 years
Male
809,099
Female
829,266
Median age by sex
Male median age
37.9 years
Female median age
39.9 years
Age by sexPopulation distribution
42,371Under 540,165
121,0465–17115,283
80,16718–2479,213
126,11825–34121,145
114,67035–44114,263
102,53845–54103,747
103,85755–64106,775
118,33265+148,675
Age by sex values
CategoryMaleFemale
Under 542,37140,165
5–17121,046115,283
18–2480,16779,213
25–34126,118121,145
35–44114,670114,263
45–54102,538103,747
55–64103,857106,775
65+118,332148,675
View detailed source bins
5–17
Male
5–9
45,740
10–14
45,693
15–17
29,613
Female
5–9
42,239
10–14
45,111
15–17
27,933
18–24
Male
18–19
23,739
20
10,074
21
10,678
22–24
35,676
Female
18–19
23,218
20
10,162
21
10,684
22–24
35,149
25–34
Male
25–29
63,149
30–34
62,969
Female
25–29
60,557
30–34
60,588
35–44
Male
35–39
60,323
40–44
54,347
Female
35–39
60,618
40–44
53,645
45–54
Male
45–49
50,373
50–54
52,165
Female
45–49
50,685
50–54
53,062
55–64
Male
55–59
55,229
60–61
19,802
62–64
28,826
Female
55–59
53,586
60–61
21,921
62–64
31,268
65+
Male
65–66
18,048
67–69
22,855
70–74
31,674
75–79
20,439
80–84
13,498
85+
11,818
Female
65–66
18,886
67–69
25,020
70–74
38,141
75–79
26,875
80–84
18,455
85+
21,298
Detailed source values for Age by sex
RaceMutually exclusive counts
White alone
1,093,62866.8%
Asian alone
223,58213.6%
Two or more races
163,18110.0%
Black alone
80,3274.9%
Some other race
73,7784.5%
American Indian / Alaska Native
3,2460.2%
Native Hawaiian / Pacific Islander
6230.0%
Residents: 1,638,365.

Derived from published counts

Race values
CategoryValue
White alone1,093,628
Asian alone223,582
Two or more races163,181
Black alone80,327
Some other race73,778
American Indian / Alaska Native3,246
Native Hawaiian / Pacific Islander623

Ethnicity

Hispanic or Latino
151,761
White, not Hispanic
1,066,504

Hispanic or Latino ethnicity and White, not Hispanic are reported separately from race.

Households

Household structure

Family households
401,472
Married-couple share
79%
Derived from published counts
With children
46.1%
Derived from published counts
Household sizeShare of households
168,02826.5%
1 person
211,88833.4%
2 people
109,70217.3%
3 people
95,20915.0%
4 people
49,3887.8%
5+ people
View detailed source bins
5+ people
5 People
33,018
6 People
11,123
7 Plus People
5,247
Detailed source values for Household size
Household size values
CategoryValue
1 person168,028
2 people211,888
3 people109,702
4 people95,209
5+ people49,388
Family householdsEach subgroup is compared with its parent
All family households401,472
Married-couple families317,09679% of family households
With children
136,32843%
Without children
180,76857%
Other families84,37621% of family households
Male householder
26,00230.8%
Female householder
58,37469.2%
Family households values
GroupValueShare of parent
All family households401,472Not applicable
Married-couple families317,09679%
With children136,32843%
Without children180,76857%
Other families84,37621%
Male householder26,00230.8%
Female householder58,37469.2%

Income

Income distribution

Median household
$130,847
Median family
$166,449
Per capita
$69,556
Household incomeShare of households
63,73610.0%
Under $25k
59,7469.4%
$25–49k
64,23610.1%
$50–74k
58,8319.3%
$75–99k
108,28917.1%
$100–149k
81,87912.9%
$150–199k
197,49831.1%
$200k+
View detailed source bins
Under $25k
Under $10,000
23,313
$10,000–$14,999
14,879
$15,000–$19,999
13,357
$20,000–$24,999
12,187
$25–49k
$25,000–$29,999
11,832
$30,000–$34,999
11,844
$35,000–$39,999
11,683
$40,000–$44,999
12,455
$45,000–$49,999
11,932
$50–74k
$50,000–$59,999
24,389
$60,000–$74,999
39,847
$100–149k
$100,000–$124,999
57,917
$125,000–$149,999
50,372
Detailed source values for Household income
Household income values
CategoryValue
Under $25k63,736
$25–49k59,746
$50–74k64,236
$75–99k58,831
$100–149k108,289
$150–199k81,879
$200k+197,498

Education

Attainment and marital status

Education universe
1,160,120
High school or higher
93.2%
Derived from published counts
Bachelor’s or higher
59.5%
Derived from published counts
Educational attainmentAttainment distribution
41,1623.5%
Less than 9th grade
37,4343.2%
Grades 9–12, no diploma
199,44117.2%
High school or equivalent
126,51910.9%
Some college, no degree
65,1835.6%
Associate degree
336,02529.0%
Bachelor’s degree
354,35630.5%
Graduate or professional
View detailed source bins
Less than 9th grade
No Schooling
20,359
Nursery School
405
Kindergarten
556
First Grade
455
Second Grade
615
Third Grade
2,000
Fourth Grade
1,941
Fifth Grade
2,636
Sixth Grade
4,319
Seventh Grade
2,333
Eighth Grade
5,543
Grades 9–12, no diploma
Ninth Grade
7,094
Tenth Grade
7,854
Eleventh Grade
7,021
Twelfth No Diploma
15,465
High school or equivalent
Regular High School Diploma
175,431
Ged Or Alternative Credential
24,010
Some college, no degree
Some College Under 1 Year
44,174
Some College 1 Or More Years No Degree
82,345
Graduate or professional
Masters Degree
235,647
Professional School Degree
46,527
Doctorate Degree
72,182
Detailed source values for Educational attainment
Educational attainment values
CategoryValue
Less than 9th grade41,162
Grades 9–12, no diploma37,434
High school or equivalent199,441
Some college, no degree126,519
Associate degree65,183
Bachelor’s degree336,025
Graduate or professional354,356
Marital status by sexMale and Female
13,85047,972
Widowed
41,39364,178
Divorced
6,9199,060
Separated
353,587344,329
Now Married
266,465245,272
Never Married
24,72026,287
Married Spouse Absent
328,867318,042
Married Spouse Present
Marital status by sex values
CategoryMaleFemale
Widowed13,85047,972
Divorced41,39364,178
Separated6,9199,060
Now Married353,587344,329
Never Married266,465245,272
Married Spouse Absent24,72026,287
Married Spouse Present328,867318,042

Housing

Tenure, occupancy, and housing stock

Median home value
$727,800
Median gross rent
$2,201
Housing tenure
Owner
388,89361.3%
Renter
245,32238.7%
Occupied homes: 634,215.
Housing tenure values
CategoryValue
Owner388,893
Renter245,322
Housing occupancy
Occupied
634,21595.5%
Vacant
30,0524.5%
Housing units: 664,267.

Derived from published counts

Housing occupancy values
CategoryValue
Occupied634,215
Vacant30,052

Owner financing

Owners with mortgage
256,537
Owners without mortgage
132,356
Vacancy reason
For rent8,612
For sale2,461
Rented, not occupied2,244
Sold, not occupied1,587
Seasonal4,261
Migrant workers0
Other10,887
Vacancy reason values
CategoryValue
For rent8,612
For sale2,461
Rented, not occupied2,244
Sold, not occupied1,587
Seasonal4,261
Migrant workers0
Other10,887
Structure type
Detached308,860
Attached46,093
2–4 units137,593
5–19 units64,771
20+ units103,960
Mobile or other2,990
View detailed source bins
2–4 units
Structure 2 Units
80,885
Structure 3–4 Units
56,708
5–19 units
Structure 5–9 Units
31,104
Structure 10–19 Units
33,667
20+ units
Structure 20–49 Units
39,437
Structure 50 Plus Units
64,523
Mobile or other
Structure Mobile Home
2,598
Structure Boat Rv Van Other
392
Detailed source values for Structure type
Structure type values
CategoryValue
Detached308,860
Attached46,093
2–4 units137,593
5–19 units64,771
20+ units103,960
Mobile or other2,990
Year builtHousing units by period
317,43347.8%
Before 1960
134,82120.3%
1960–79
109,85216.5%
1980–99
94,06814.2%
2000–19
8,0931.2%
2020+
View detailed source bins
Before 1960
1939 Earlier
214,248
1940–1949
30,408
1950–1959
72,777
1960–79
1960–1969
68,647
1970–1979
66,174
1980–99
1980–1989
63,123
1990–1999
46,729
2000–19
2000–2009
45,343
2010–2019
48,725
Detailed source values for Year built
Year built values
CategoryValue
Before 1960317,433
1960–79134,821
1980–99109,852
2000–1994,068
2020+8,093
Move-in periodOwner and Renter
Before 1990
69,418
4,135
1990s
62,432
7,234
2000s
77,988
18,691
2010s
131,337
106,343
2020–22
41,383
85,503
2023+
6,335
23,416
Move-in period values
CategoryOwnerRenter
Before 199069,4184,135
1990s62,4327,234
2000s77,98818,691
2010s131,337106,343
2020–2241,38385,503
2023+6,33523,416
Home valueOwner-occupied homes
8,1132.1%
Under $100k
10,8372.8%
$100–249k
69,07817.8%
$250–499k
116,76630.0%
$500–749k
90,76823.3%
$750–999k
57,24314.7%
$1–1.49m
36,0889.3%
$1.5m+
View detailed source bins
Under $100k
Under 10000
2,922
10000–14999
166
15000–19999
142
20000–24999
203
25000–29999
350
30000–34999
150
35000–39999
125
40000–49999
914
50000–59999
748
60000–69999
657
70000–79999
628
80000–89999
668
90000–99999
440
$100–249k
100000–124999
1,442
125000–149999
723
150000–174999
1,490
175000–199999
1,330
200000–249999
5,852
$250–499k
250000–299999
4,920
300000–399999
23,971
400000–499999
40,187
$1.5m+
1500000–1999999
18,210
2000000+
17,878
Detailed source values for Home value
Home value values
CategoryValue
Under $100k8,113
$100–249k10,837
$250–499k69,078
$500–749k116,766
$750–999k90,768
$1–1.49m57,243
$1.5m+36,088
Gross rentRenter-occupied homes
Under $50016,281
$500–99916,026
$1,000–1,49923,390
$1,500–1,99943,069
$2,000–2,49949,947
$2,500–2,99937,034
$3,000+52,017
View detailed source bins
Under $500
Under 100
530
100–149
744
150–199
1,058
200–249
1,151
250–299
2,643
300–349
3,401
350–399
2,717
400–449
1,972
450–499
2,065
$500–999
500–549
1,890
550–599
1,531
600–649
1,828
650–699
1,270
700–749
1,797
750–799
1,733
800–899
2,953
900–999
3,024
$1,000–1,499
1000–1249
10,478
1250–1499
12,912
$3,000+
3000–3499
23,284
3500+
28,733
Detailed source values for Gross rent
Gross rent values
CategoryValue
Under $50016,281
$500–99916,026
$1,000–1,49923,390
$1,500–1,99943,069
$2,000–2,49949,947
$2,500–2,99937,034
$3,000+52,017
Vehicle availabilityOwner and Renter
No vehicle
13,057
52,093
1 vehicle
113,011
120,354
2 vehicles
179,344
59,818
3 vehicles
58,693
9,292
4 vehicles
18,119
2,967
5+ vehicles
6,669
798
Vehicle availability values
CategoryOwnerRenter
No vehicle13,05752,093
1 vehicle113,011120,354
2 vehicles179,34459,818
3 vehicles58,6939,292
4 vehicles18,1192,967
5+ vehicles6,669798

Transportation

How residents get to work

Workers age 16+
888,792
Average commute
29.9 min
Travel mode
Drive alone
481,89154.2%Derived from published counts
Carpool
56,2996.3%Derived from published counts
Public transit
64,1667.2%Derived from published counts
Walk or bicycle
51,3185.8%Derived from published counts
Work from home
219,41224.7%Derived from published counts
Other
15,7061.8%Derived from published counts
Workers: 888,792.

Derived from published counts

View detailed source bins
Walk or bicycle
Walked
37,519
Bicycle
13,799
Other
Other Transportation
12,254
Motorcycle
541
Taxi Or Ride Hailing
2,911
Detailed source values for Travel mode
Travel mode values
CategoryValue
Drive alone481,891
Carpool56,299
Public transit64,166
Walk or bicycle51,318
Work from home219,412
Other15,706
Commute timeWorkers by travel time
125,67718.8%
Under 15 min
215,65532.2%
15–29 min
178,09526.6%
30–44 min
76,11011.4%
45–59 min
73,84311.0%
60+ min
View detailed source bins
Under 15 min
Under 5
11,786
5–9
44,359
10–14
69,532
15–29 min
15–19
82,017
20–24
86,685
25–29
46,953
30–44 min
30–34
109,406
35–39
29,551
40–44
39,138
60+ min
60–89
58,370
90+
15,473
Detailed source values for Commute time
Commute time values
CategoryValue
Under 15 min125,677
15–29 min215,655
30–44 min178,095
45–59 min76,110
60+ min73,843

Workforce

Labor force and job flows

Population age 16+
1,357,850
Civilian labor force
946,989
Employed
905,785
Unemployed
41,204
Unemployment rate
4.4%
Poverty universe
1,583,574
Persons below poverty
122,596
Gini index
0.47
White-collar workers
686,243
Blue-collar workers
105,183
Occupation by sexMale and Female
Service Occupations
49,440
64,919
Sales Office Occupations
54,835
78,197
Management Business Science Arts
278,142
275,069
Production Transportation Material Moving
41,800
15,651
Natural Resources Construction Maintenance
45,344
2,388
Occupation by sex values
CategoryMaleFemale
Service Occupations49,44064,919
Sales Office Occupations54,83578,197
Management Business Science Arts278,142275,069
Production Transportation Material Moving41,80015,651
Natural Resources Construction Maintenance45,3442,388

Employment and commuting

Resident workers
769,906
Workplace jobs
877,834
Internal commuters
413,901
Inbound commuters
463,933
Outbound commuters
356,005
Net worker inflow
107,928

Health insurance

Insurance coverage

Coverage status
Insured
1,585,71297.6%Derived from published counts
Uninsured
38,3552.4%
Residents: 1,624,067.
Coverage status values
CategoryValue
Insured1,585,712
Uninsured38,355
Uninsured by ageResidents without coverage
5,34413.9%
Under 19
14,85438.7%
Age 19–34
16,68943.5%
Age 35–64
1,4683.8%
Age 65+
Uninsured by age values
CategoryValue
Under 195,344
Age 19–3414,854
Age 35–6416,689
Age 65+1,468

Community

Nativity, citizenship, and mobility

Nativity
Native born
1,260,22376.9%
Foreign born
378,14223.1%
Residents: 1,638,365.
Nativity values
CategoryValue
Native born1,260,223
Foreign born378,142

Citizenship

Naturalized citizen
191,006
Not a citizen
187,136

Residential mobility

Same house
1,414,712
Within same county
102,490
From another county
43,623
From another state
43,035
From abroad
18,720

Sources and method

Vintages, quality, and methodology

Source vintages

Demographics
2024 ACS 5-year
Historical baseline
2020 Census
Employment
2023 LODES

Report quality

Status
complete
kind
published geography
estimated
false
Historical housing baseline
2020 housing units
658,283

The 2020 Census is used only as a historical population and housing baseline. It is not an annual population series and no intermediate years are inferred.

Named-geography values are published ACS estimates; margins of error are retained alongside direct values where supplied.

County demographics

About Middlesex County, Massachusetts

Middlesex County, Massachusetts has 1,638,365 residents and a median age of 38.9 years. It ranks No. 21 by population within this indexed county cohort. Population has grown 0.4% since the 2020 Census. Median household income is $50,113 above United States.

Market context

Compare the numbers.

Published values on the same 2024 ACS basis.
Comparison of selected demographic measures
GeographyPopulationMedian incomeMedian ageOwner occupied
Middlesex County, Massachusetts1,638,365$130,84738.9 years61.3%
United States334,922,500$80,73438.9 years65.2%
Massachusetts7,044,056$103,96040 years62.5%

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