Middlesex County, New Jersey Population 2024

866,152

Middlesex County, New Jersey's estimated 2024 population is 866,152 with a growth rate of 0.29% in the past year according to the most recent United States census data. Middlesex County, New Jersey is the 2nd largest county in New Jersey. The 2010 population was 810,813 and has seen a growth of 6.83% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2029878,7972,5290.29%
2028876,2682,5290.29%
2027873,7392,5290.29%
2026871,2102,5290.29%
2025868,6812,5290.29%
2024866,1522,5290.29%
2023863,6232,5290.29%
2022861,094-1,270-0.15%
2021862,3649560.11%
2020861,40837,0144.49%
2019824,394-1,283-0.16%
2018825,677-1,295-0.16%
2017826,9721,6740.2%
2016825,298-173-0.02%
2015825,4711,1400.14%
2014824,3312,5200.31%
2013821,8112,4220.3%
2012819,3894,1360.51%
2011815,2534,4400.55%
2010810,81300%
1990671,78075,88712.74%
1980595,89312,0802.07%
1970583,813149,95734.56%
1960433,856168,98463.8%
1950264,87247,79522.02%
1940217,0774,8692.29%
1930212,20849,87430.72%
1920162,33447,90841.87%
1910114,42634,66443.46%
190079,76218,00829.16%
189061,7549,46818.11%
188052,2867,25716.12%
187045,02910,21729.35%
186034,8126,17721.57%
185028,6356,74230.8%
184021,893-1,264-5.46%
183023,1571,6877.86%
182021,4701,0895.34%
181020,3812,49113.92%
180017,8901,93412.12%
179015,956-862,841-98.18%
showing: 41 rows
2024 Growth Rate
0.29% (2,529)
County Website
Middlesex County
2020 Population
861,408
Area
309 mi²
Density
2803 people/mi²
Growth Since 2020
0.55% (4,744)
Founded
1683

Middlesex County, New Jersey Population 2024

Population by Race

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Race
Population
Percentage (of total)
White411,59347.85%
Asian214,70124.96%
Black or African American87,99610.23%
Other race74,8108.7%
Two or more races65,6087.63%
Native American5,0870.59%
Native Hawaiian or Pacific Islander3520.04%

White

Asian

Black or African American

Other race

Two or more races

Native American

Native Hawaiian or Pacific Islander

Middlesex County, New Jersey Population by Race

Middlesex County, New Jersey Population Pyramid 2024

Middlesex County, New Jersey Median Age

39.1

Total

38.3

Male

40

Female

Middlesex County, New Jersey Adults

There are 674,454 adults, (132,766 of whom are seniors) in Middlesex County, New Jersey.

Middlesex County, New Jersey Age Dependency

58.8

Age Dependency Ratio

24.5

Old Age Dependency Ratio

34.3

Child Dependency Ratio

Middlesex County, New Jersey Sex Ratio

Female432,44050.28%
Male427,70749.72%

Middlesex County, New Jersey Population by Age

Middlesex County, New Jersey Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All301,9672.7663.836.2
Married167,2063.3776.523.5
Non Family84,6671.2747.952.1
Female36,0713.2549.450.6
Male14,0233.2747.152.9

3.27

Average Family Size

2.76

Average Household Size

63.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Middlesex County, New Jersey Households and Families

Male

Female

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Education Attained
Count
Percentage
Less Than 9th Grade30,3515.13%
9th to 12th Grade30,6545.18%
High School Graduate139,21423.54%
Some College85,29114.42%
Associates Degree39,0406.6%
Bachelors Degree156,15326.41%
Graduate Degree110,61518.71%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Middlesex County, New Jersey Educational Attainment by Sex (over 25)

Middlesex County, New Jersey Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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Race
Total
High School
Bachelors
White262,106247,274111,479
Asian145,104133,533107,776
Hispanic114,56484,97921,559
Black58,91954,54820,858
Other Race45,83632,1588,169
2+ Races35,36429,62110,948
Native American3,0581,939289
Islander28524863

The highest rate of high school graduation is among white people with a rate of 94.34%.

The highest rate of bachelors degrees is among asian people with a rate of 74.28%.

Middlesex County, New Jersey Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Overall$61,313$74,147$49,751
Less Than 9th Grade$33,134$37,591$25,786
High School Graduate$41,856$50,539$33,484
Some College$51,887$61,935$42,217
Bachelors Degree$78,605$93,667$64,703
Graduate Degree$101,331$119,889$77,703

$61,313

Average Earnings

$74,147

Average Male

$49,751

Average Female

Middlesex County, New Jersey Earnings by Educational Attainment

Middlesex County, New Jersey Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Middlesex County, New Jersey Language

53.66% of Middlesex County, New Jersey residents speak only English, while 46.34% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 17.9% of the population.

Middlesex County, New Jersey Language

Middlesex County, New Jersey Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
Hispanic187,79429,93515.94%
White328,99319,6425.97%
Other74,18013,79718.6%
Asian210,82710,9755.21%
Black83,9617,6259.08%
Multiple64,3977,35911.43%
Native4,98377915.63%
Islander3524011.36%

8.35%

Overall Poverty Rate

7.52%

Male Poverty Rate

9.18%

Female Poverty Rate

Poverty in Middlesex County, New Jersey

The race most likely to be in poverty in Middlesex County, New Jersey is Other, with 18.6% below the poverty level.

The race least likely to be in poverty in Middlesex County, New Jersey is Asian, with 5.21% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.55%. Among those working part-time, it was 10.33%, and for those that did not work, the poverty rate was 15.34%.

Middlesex County, New Jersey Poverty

rate

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Rate
Poverty
Less Than 9th Grade18.46%
High School9.63%
Some College6.36%
Bachelors or Greater3.24%

Middlesex County, New Jersey Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed20.31%
Male Unemployed16.69%
Female Employed4.74%
Male Employed3.09%

Middlesex County, New Jersey Poverty Rate by Employment Status and Sex

Middlesex County, New Jersey Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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Name
Median
Mean
Households$105,206$132,224
Families$124,842$151,439
Married Families$143,309$170,502
Non Families$59,085$76,175

mean

median

Income by Household Type

Middlesex County, New Jersey Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

52.3%

Overall Marriage Rate

54.6%

Male Marriage Rate

50.0%

Female Marriage Rate

Middlesex County, New Jersey Married by Age and Sex

male

female

Middlesex County, New Jersey 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, New Jersey Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Middlesex County, New Jersey Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

22,600

Number of Veterans

21,098

Male Veterans

1,502

Female Veterans

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War
Veterans
Vietnam7,851
Second Gulf War4,514
First Gulf War2,980
Korea2,289
World War II499

Middlesex County, New Jersey Veterans by War

count

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Age Group
Veterans
75+7,776
65 to 745,601
35 to 544,275
55 to 642,867
18 to 342,081

Middlesex County, New Jersey Veterans by Age

count

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Name
Veterans
% of Total
White16,0624.7%
Hispanic3,0192.22%
Black2,4663.57%
Asian1,5680.96%
2+ Races1,2182.89%
Other Race1,0762.01%
Native American1343.94%
Islander7623.75%

Middlesex County, New Jersey Veterans by Race

Middlesex County, New Jersey Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

3.54%

Veteran Poverty Rate

28.2%

Veteran Disability Rate

Middlesex County, New Jersey Veterans by Education

LaborForceParticipation

66.4%

Labor Force Participation

62.2%

Employment Rate

6.3%

Unemployment Rate

Middlesex County, New Jersey Employment by Age

LaborForceParticipation

Middlesex County, New Jersey Employment by Race

LaborForceParticipation

Middlesex County, New Jersey 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

45.24%

Born in Middlesex County, New Jersey

65.9%

Native Born

34.1%

Foreign Born

13.86%

Non Citizen

20.24%

Naturalized

Place of Birth

65.9% of Middlesex County, New Jersey residents were born in the United States, with 45.24% having been born in New Jersey. 13.86% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Middlesex County, New Jersey Place of Birth

Sources