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Middlesex County, NJ ZIP Codes

New Jersey (NJ)  ·  45 ZIP codes  ·  34 cities
45
ZIP codes
860,807
population (2021)
+6.3%
pop change since 2010
34023
FIPS code
Middlesex County ZIP code map
About Middlesex County
Middlesex County is located in New Jersey and contains 45 ZIP codes across 34 cities and communities. The county's population was 860,807 as of 2021, an increase of 6.3% from 809,858 in 2010. The timezone is Central Time (observes DST). The Federal Information Processing System (FIPS) code for Middlesex County is 34023.
Population
2021 population860,807
2010 population809,858
Change+6.3%
County details
StateNew Jersey
FIPS code34023
TimezoneCentral
Daylight savingYes
Cities in Middlesex County
Avenel Carteret Colonia Cranbury Dayton Dunellen East Brunswick Edison Fords Helmetta Highland Park Iselin Keasbey Kendall Park Metuchen Middlesex Milltown Monmouth Junction Monroe Township New Brunswick North Brunswick Old Bridge Parlin Perth Amboy Piscataway Plainsboro Port Reading Sayreville Sewaren South Amboy South Plainfield South River Spotswood Woodbridge
ZIP codes for Middlesex County, NJ (45)
ZIP code City County Map
07001 Avenel Middlesex View map
07008 Carteret Middlesex View map
07064 Port Reading Middlesex View map
07067 Colonia Middlesex View map
07077 Sewaren Middlesex View map
07080 South Plainfield Middlesex View map
07095 Woodbridge Middlesex View map
08512 Cranbury Middlesex View map
08536 Plainsboro Middlesex View map
08810 Dayton Middlesex View map
08812 Dunellen Middlesex View map
08816 East Brunswick Middlesex View map
08817 Edison Middlesex View map
08818 Edison Middlesex View map
08820 Edison Middlesex View map
08824 Kendall Park Middlesex View map
08828 Helmetta Middlesex View map
08830 Iselin Middlesex View map
08831 Monroe Township Middlesex View map
08832 Keasbey Middlesex View map
08837 Edison Middlesex View map
08840 Metuchen Middlesex View map
08846 Middlesex Middlesex View map
08850 Milltown Middlesex View map
08852 Monmouth Junction Middlesex View map
08854 Piscataway Middlesex View map
08855 Piscataway Middlesex View map
08857 Old Bridge Middlesex View map
08859 Parlin Middlesex View map
08861 Perth Amboy Middlesex View map
08862 Perth Amboy Middlesex View map
08863 Fords Middlesex View map
08871 Sayreville Middlesex View map
08872 Sayreville Middlesex View map
08879 South Amboy Middlesex View map
08882 South River Middlesex View map
08884 Spotswood Middlesex View map
08899 Edison Middlesex View map
08901 New Brunswick Middlesex View map
08902 North Brunswick Middlesex View map
08903 New Brunswick Middlesex View map
08904 Highland Park Middlesex View map
08906 New Brunswick Middlesex View map
08933 New Brunswick Middlesex View map
08989 New Brunswick Middlesex View map

Demographics & statistics

852,148
Population
39.2
Median age
$106,710
Median household income
$47,031
Per capita income
$411,108
Median home value
$1,719
Median monthly rent
65.3%
Home ownership
7.5%
Poverty rate
6.0%
Unemployment
201,613
Housing units
44.3%
Bachelor's or higher

Age distribution

Male Female
23,468
Under 5
23,674
25,064
5–9
25,284
26,472
10–14
26,705
29,846
15–19
30,108
28,205
20–24
28,453
55,026
25–34
55,508
58,814
35–44
59,330
56,797
45–54
57,296
29,293
55–59
29,550
25,888
60–64
26,116
38,438
65–74
38,775
18,792
75–84
18,957
8,109
85+
8,180
← Male
Female →

Age summary

GroupCount%
Under 18183,72821.7%
18 and over668,42078.3%
65 and over131,25115.2%
Median age39.2 years

Race & ethnicity

White 41.8%
Asian 21.9%
Hispanic or Latino 12.3%
Black or African American 9%
Other race 7.7%
Two or more races 6.7%
American Indian / Alaska Native 0.5%
GroupCount%
White405,99841.8%
Asian212,84821.9%
Hispanic or Latino119,20212.3%
Black or African American87,7489%
Other race74,9087.7%
Two or more races65,2556.7%
American Indian / Alaska Native5,0390.5%

Household income

Under $10k 3.1%
$10k–$15k 2.3%
$15k–$25k 4.6%
$25k–$35k 4.3%
$35k–$50k 7.4%
$50k–$75k 12.5%
$75k–$100k 12.3%
$100k–$150k 20.9%
$150k–$200k 13.3%
$200k+ 19.4%
Range% of households
Under $10k3.1%
$10k–$15k2.3%
$15k–$25k4.6%
$25k–$35k4.3%
$35k–$50k7.4%
$50k–$75k12.5%
$75k–$100k12.3%
$100k–$150k20.9%
$150k–$200k13.3%
$200k+19.4%
Median income$106,710

Housing

Home values

Under $50k 2.2%
$50k–$100k 1.2%
$100k–$150k 1.4%
$150k–$200k 3.3%
$200k–$300k 16.2%
$300k–$500k 49.8%
$500k–$1M 23.9%
$1M+ 1.9%

Housing overview

MetricValue
Median home value$411,108
Median rent / month$1,719
Owner occupied65.3%
Renter occupied34.7%
Vacant4.0%
Single-family detached55.3%
Large apartment buildings9.0%
Mobile homes1.1%
Median rooms5.7
Avg household size (owned)2.93

Year built

Era%
2020 or later0.2%
2010–20195.1%
2000–20097.5%
1990–199910.0%
1980–198915.5%
1970–197911.7%
1960–196915.0%
1950–195917.5%
1940–19496.1%
1939 or earlier11.4%

Bedrooms

Size% of units
No bedroom (studio)2.1%
1 bedroom15.0%
2 bedrooms25.2%
3 bedrooms32.4%
4 bedrooms20.7%
5+ bedrooms4.7%

Vehicles per household

Vehicles% of households
No vehicle7.4%
1 vehicle32.9%
2 vehicles39.5%
3 or more20.3%

Heating fuel

Fuel type%
Utility gas80.4%
Electricity12.6%
Propane / LP gas1.6%
Fuel oil4.0%
Solar0.1%
No fuel used0.7%

Households & families

Household typeCount%
Married-couple family165,32256.1%
Cohabiting couple17,0075.4%
Male householder, no spouse44,00214.4%
Female householder, no spouse72,28024.1%
Households with children under 18104,17635.4%
Households with seniors (65+)92,64530.2%
Average household size2.77

Marital status

StatusMaleFemale
Never married34.4%29.9%
Married56.4%51.0%
Separated1.0%1.5%
Widowed2.0%8.2%
Divorced6.2%9.5%

Education

Less than 9th grade 4.7%
Some HS, no diploma 4.7%
HS graduate 24.8%
Some college, no degree 14.5%
Associate's degree 6.9%
Bachelor's degree 26.4%
Graduate / professional 18.0%
Metric%
HS diploma or higher90.5%
Bachelor's or higher44.3%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool14,0716.8%
Kindergarten10,3205.0%
Elementary school82,21439.0%
High school42,86220.9%
College / grad school74,79028.4%

Employment

Industry of employment

Education & healthcare 23.1%
Professional & management 15.3%
Retail trade 10.7%
Finance & real estate 8.9%
Manufacturing 8.7%
Transportation & utilities 8.0%
Construction 5.4%
Arts, food & hospitality 5.2%
Public administration 4.3%
Other services 4.2%
Wholesale trade 3.3%
Information 2.6%
Agriculture & mining 0.2%

Occupation

Category%
Management, business & arts48.2%
Service12.2%
Sales & office20.4%
Natural resources & construction6.3%
Production & transportation12.9%

Employment type

Type%
Private sector81.1%
Government14.8%
Self-employed4.1%
Unpaid family workers0.1%

Commute

Method%
Drive alone67.4%
Carpool8.3%
Public transit7.0%
Walk1.7%
Other means2.3%
Avg commute (minutes)32.7

Poverty

All people 7.5%
Under 18 years 8.9%
18 and over 7.1%
Married-couple families 3.6%
Female-led households 14.4%

Income support

Source% of households
Social Security28.7%
Retirement income23.0%
Supplemental Security3.5%
Cash public assistance2.0%
Food stamps / SNAP6.7%

Health indicators

Condition%
High blood pressure0.0%
High cholesterol0.0%
Heart disease5.2%
Stroke2.3%
Asthma8.6%
Arthritis16.9%
Kidney disease2.3%
Pulmonary disease4.5%
Cancer5.5%
Behavior / access%
Binge drinking17.2%
No physical activity19.4%
Less than 7 hrs sleep33.5%
Fair or poor health10.4%
Poor mental health13.1%
Poor physical health7.6%
No health insurance13.8%
Visited doctor (checkup)74.8%
Visited dentist67.7%
Cholesterol screening0.0%
Teeth loss9.8%

Veterans & disability

VeteransCount%
Civilian veterans22,3623.6%
Disability%
Any disability9.5%
Under 184.0%
18–64 years6.6%
65 and over30.1%

Health insurance coverage

Type%
Private insurance76.4%
Public insurance27.7%
Uninsured under 193.4%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only805,00694.4%
Spanish127,83414.9%
Other Indo-European59,2316.4%
Asian & Pacific Islander38,6804.8%
Other languages24,3123.0%

Place of birth & citizenship

OriginCount%
Native born (US)560,64067.7%
Born in same state540,88765.2%
Born in different state386,62848.0%
Foreign born19,7532.4%
Naturalized citizen291,50832.3%
Not a US citizen171,87160.8%

Ancestry

AncestryCount%
Italian69,1608.1%
Arab24,4632.9%
French18,9602.2%
Irish13,3151.6%
English2,4360.3%
AncestryCount%
Polish1,9280.2%
Norwegian1,7850.2%
Dutch1,6400.2%
German1,1180.1%

Technology access

Metric% of households
Computer access35.7%
Internet access95.5%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Explore more New Jersey ZIP codes
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