Monroe Township ZIP Code List — Middlesex County, NJ

There is one unique ZIP code in Monroe Township, New Jersey and it is 08831. Area code: 732.

ZIP codes

51.30

sq mi land

0.46

sq mi water

732

area code

Monroe Township, NJ ZIP code map

About Monroe Township, NJ

Monroe Township is a vibrant community located in Middlesex County, New Jersey. Known for its suburban charm, the township offers residents a mix of tranquility and accessibility to urban amenities. With a diverse population and an array of recreational opportunities, Monroe Township is an appealing place to live and visit.

Location & geography

Monroe Township is situated in central New Jersey, approximately 20 miles south of Newark and just over 30 miles southwest of New York City. The township covers a total area of 102.60 square miles, with a small water area of 0.91 square miles, characterized by gently rolling hills and scenic landscapes. Nearby cities include East Brunswick, which lies about 10 miles to the north, South Brunswick about 10 miles to the west, and Old Bridge approximately 15 miles to the east.

Community & economy

The character of Monroe Township is marked by a strong sense of community and a commitment to family-friendly living. The local economy is supported by various industries, including retail, healthcare, and agriculture, providing residents with job opportunities close to home. Daily life in Monroe Township includes access to parks, recreational facilities, and a range of cultural activities that foster a welcoming atmosphere.

Transportation

Monroe Township is well-served by major highways, including Route 33 and Route 44, which facilitate easy travel to neighboring areas and beyond. The nearest airport is Newark Liberty International Airport, located approximately 25 miles to the northwest, ensuring residents have access to both domestic and international flights. Public transit options are available, connecting Monroe Township to nearby cities and regional transportation networks.

History

Monroe Township was officially formed in 1838 and has a rich agricultural history that shaped its development over the years. The township grew significantly in the latter part of the 20th century, transitioning from a predominantly rural community to a more suburban environment filled with residential developments. Notable events in its history include the establishment of various community programs and facilities aimed at enhancing the quality of life for its residents.

Did you know?

A surprising fact about Monroe Township is that it has a significant population of retirees, making it a popular destination for those looking for an active lifestyle in their later years. Additionally, the township hosts various annual events that celebrate its cultural diversity and community spirit.

ZIP codes for Monroe Township, NJ (1)

ZIP code	City	County	Map
08831	Monroe Township	Middlesex	View map

Demographics & statistics

54,229

Population

53.7

Median age

$108,626

Median household income

$62,709

Per capita income

$451,000

Median home value

$1,739

Median monthly rent

89.6%

Home ownership

4.0%

Poverty rate

5.8%

Unemployment

21,992

Housing units

49.9%

Bachelor's or higher

Age distribution

Male Female

821

Under 5

890

1,460

5–9

1,581

1,688

10–14

1,828

1,104

15–19

1,197

851

20–24

921

1,369

25–34

1,483

2,997

35–44

3,248

3,246

45–54

3,516

1,647

55–59

1,784

1,820

60–64

1,971

4,434

65–74

4,803

3,132

75–84

3,394

1,461

85+

1,583

← Male

Female →

Age summary

Group	Count	%
Under 18	10,068	18.6%
18 and over	44,161	81.4%
65 and over	18,807	34.7%
Median age	53.7 years

Race & ethnicity

White 68.7%

Asian 21.1%

Two or more races 4%

Hispanic or Latino 2.9%

Black or African American 2.4%

Other race 0.9%

American Indian / Alaska Native 0.2%

Group	Count	%
White	38,349	68.7%
Asian	11,774	21.1%
Two or more races	2,206	4%
Hispanic or Latino	1,606	2.9%
Black or African American	1,319	2.4%
Other race	493	0.9%
American Indian / Alaska Native	88	0.2%

Household income

Under $10k 2.7%

$10k–$15k 2.4%

$15k–$25k 5.9%

$25k–$35k 3.7%

$35k–$50k 10.0%

$50k–$75k 11.8%

$75k–$100k 11.7%

$100k–$150k 13.7%

$150k–$200k 15.1%

$200k+ 23.0%

Range	% of households
Under $10k	2.7%
$10k–$15k	2.4%
$15k–$25k	5.9%
$25k–$35k	3.7%
$35k–$50k	10.0%
$50k–$75k	11.8%
$75k–$100k	11.7%
$100k–$150k	13.7%
$150k–$200k	15.1%
$200k+	23.0%
Median income	$108,626

Housing

Home values

Under $50k 0.7%

$50k–$100k 2.1%

$100k–$150k 3.5%

$150k–$200k 6.0%

$200k–$300k 14.0%

$300k–$500k 30.8%

$500k–$1M 39.9%

$1M+ 3.0%

Housing overview

Metric	Value
Median home value	$451,000
Median rent / month	$1,739
Owner occupied	89.6%
Renter occupied	10.4%
Vacant	5.0%
Single-family detached	61.6%
Large apartment buildings	3.8%
Mobile homes	0.1%
Median rooms	6.1
Avg household size (owned)	2.37

Year built

Era	%
2020 or later	0.3%
2010–2019	15.6%
2000–2009	20.9%
1990–1999	15.4%
1980–1989	14.8%
1970–1979	14.6%
1960–1969	8.5%
1950–1959	4.5%
1940–1949	2.2%
1939 or earlier	3.2%

Bedrooms

Size	% of units
No bedroom (studio)	2.4%
1 bedroom	3.7%
2 bedrooms	42.0%
3 bedrooms	23.9%
4 bedrooms	20.5%
5+ bedrooms	7.5%

Vehicles per household

Vehicles	% of households
No vehicle	6.9%
1 vehicle	37.1%
2 vehicles	39.3%
3 or more	16.7%

Heating fuel

Fuel type	%
Utility gas	65.3%
Electricity	28.8%
Propane / LP gas	1.6%
Fuel oil	3.5%
Wood	0.1%
Solar	0.3%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	13,931	60.1%
Cohabiting couple	574	2.5%
Male householder, no spouse	2,424	10.5%
Female householder, no spouse	6,264	27.0%
Households with children under 18	5,765	24.9%
Households with seniors (65+)	12,982	56.0%
Average household size	2.32

Marital status

Status	Male	Female
Never married	20.0%	15.2%
Married	68.2%	57.3%
Separated	0.6%	0.6%
Widowed	4.7%	19.0%
Divorced	6.6%	7.8%

Education

Less than 9th grade 2.2%

Some HS, no diploma 2.9%

HS graduate 24.7%

Some college, no degree 15.0%

Associate's degree 5.4%

Bachelor's degree 29.8%

Graduate / professional 20.0%

Metric	%
HS diploma or higher	95.0%
Bachelor's or higher	49.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	564	5.3%
Kindergarten	430	4.0%
Elementary school	5,450	51.1%
High school	2,194	20.6%
College / grad school	2,021	19.0%

Employment

Industry of employment

Education & healthcare 22.1%

Professional & management 17.2%

Finance & real estate 14.3%

Retail trade 9.8%

Manufacturing 7.5%

Transportation & utilities 5.8%

Public administration 5.3%

Construction 4.7%

Arts, food & hospitality 4.5%

Wholesale trade 3.5%

Other services 3.0%

Information 2.1%

Agriculture & mining 0.2%

Occupation

Category	%
Management, business & arts	57.4%
Service	10.2%
Sales & office	19.9%
Natural resources & construction	5.2%
Production & transportation	7.3%

Employment type

Type	%
Private sector	82.1%
Government	14.9%
Self-employed	2.9%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	66.4%
Carpool	3.9%
Public transit	6.2%
Walk	1.1%
Other means	1.2%
Avg commute (minutes)	40.6

Poverty

All people 4.0%

Under 18 years 1.1%

18 and over 4.6%

Married-couple families 2.6%

Female-led households 5.0%

Income support

Source	% of households
Social Security	54.9%
Retirement income	41.2%
Supplemental Security	3.2%
Cash public assistance	1.6%
Food stamps / SNAP	2.8%

Health indicators

Condition	%
High blood pressure	0.0%
High cholesterol	0.0%
Heart disease	8.7%
Stroke	3.5%
Asthma	8.3%
Arthritis	25.3%
Kidney disease	3.3%
Pulmonary disease	6.4%
Cancer	9.8%

Behavior / access	%
Binge drinking	13.8%
No physical activity	19.8%
Less than 7 hrs sleep	29.7%
Fair or poor health	11.3%
Poor mental health	11.0%
Poor physical health	8.7%
No health insurance	10.8%
Visited doctor (checkup)	80.0%
Visited dentist	72.0%
Cholesterol screening	0.0%
Teeth loss	10.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	2,762	6.3%

Disability	%
Any disability	12.7%
Under 18	4.0%
18–64 years	5.7%
65 and over	26.9%

Health insurance coverage

Type	%
Private insurance	82.6%
Public insurance	40.5%
Uninsured under 19	0.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	52,518	96.8%
Spanish	4,477	8.5%
Other Indo-European	870	1.7%
Asian & Pacific Islander	1,684	3.2%
Other languages	1,429	2.7%

Place of birth & citizenship

Origin	Count	%
Native born (US)	41,773	77.0%
Born in same state	41,311	76.2%
Born in different state	23,555	43.4%
Foreign born	462	0.9%
Naturalized citizen	12,456	23.0%
Not a US citizen	8,686	69.7%

Ancestry

Ancestry	Count	%
Italian	5,976	11%
Arab	1,611	3%
French	1,550	2.9%
Irish	1,015	1.9%
English	227	0.4%

Ancestry	Count	%
Polish	212	0.4%
Norwegian	196	0.4%
German	83	0.2%
Dutch	61	0.1%

Technology access

Metric	% of households
Computer access	42.8%
Internet access	93.8%

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

Frequently asked questions

What is the ZIP code for Monroe Township, NJ?

Monroe Township, NJ has one ZIP code: 08831.

What is the main ZIP code for Monroe Township, NJ?

The primary ZIP code for Monroe Township, NJ is 08831. The city uses area code 732 for phone service.

What county is Monroe Township, NJ in?

Monroe Township is located in Middlesex County, New Jersey.

How many ZIP codes are in Monroe Township, NJ?

Monroe Township, NJ has 1 ZIP code.

What is the ZIP code for Monroe Township's downtown area and commercial district?

Monroe Township's downtown and commercial areas are located in ZIP code 08831, which serves as the primary business and administrative hub for the township.

What ZIP code covers the residential neighborhoods near the Monroe Township Municipal Building?

The residential neighborhoods surrounding the Monroe Township Municipal Building and Town Center are served by ZIP code 08831, which encompasses the central areas of the township.