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New Jersey ZIP Codes
Warren County
Stewartsville, NJ
08886
08886 ZIP Code — Stewartsville, NJ
Warren County, New Jersey
ZIP code 08886 is located in
Stewartsville ,
New Jersey ,
within Warren County .
It covers approximately 15.46 square miles and serves a population of
6,963 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 908 .
About ZIP code 08886
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $402,900. Owner-occupancy is high at 92%, well above the national average.
Median household income is $151,500. The poverty rate of 4% is below the national average.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 39 minutes suggests many residents work outside the immediate area.
Educational attainment is high — 50% of residents hold a bachelor's degree or higher, well above the national average of 33%.
08886 ZIP code map
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Cities in ZIP code 08886
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
6,963
Population density
450 / sq mi
State FIPS
34
County FIPS
041
Geography
Land area
15.46 sq mi
Water area
0.06 sq mi
Latitude
40.6936
Longitude
-75.1103
Timezone
Eastern (ET)
Area code
908
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
19.7%
28.4%
30.2%
$50k – $100k
20.0%
30.6%
26.7%
$100k – $200k
38.1%
31.1%
28.3%
Over $200k
22.1%
9.9%
14.8%
Demographics & statistics
$151,500
Median household income
$402,900
Median home value
$1,591
Median monthly rent
49.8%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 1,702 24.4%
18 and over 5,261 75.6%
65 and over 824 11.8%
Median age 41.1 years
Race & ethnicity
Black or African American
6.1%
Group Count %
White 5,242 71.3%
Asian 657 8.9%
Two or more races 464 6.3%
Black or African American 446 6.1%
Hispanic or Latino 388 5.3%
Other race 154 2.1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
19.7%
28.4%
30.2%
$50k – $100k
20.0%
30.6%
26.7%
$100k – $200k
38.1%
31.1%
28.3%
Over $200k
22.1%
9.9%
14.8%
Range % of households
Under $10k 0.5%
$10k–$15k 1.3%
$15k–$25k 1.6%
$25k–$35k 5.2%
$35k–$50k 2.9%
$50k–$75k 8.7%
$75k–$100k 9.9%
$100k–$150k 18.9%
$150k–$200k 22.5%
$200k+ 28.5%
Median income $151,500
Housing
Housing overview
Metric Value
Median home value $402,900
Median rent / month $1,591
Owner occupied 91.8%
Renter occupied 8.2%
Vacant 0.2%
Single-family detached 80.9%
Large apartment buildings 0.5%
Mobile homes 1.6%
Median rooms 7.2
Avg household size (owned) 2.92
Year built
Era %
2020 or later 0.0%
2010–2019 0.0%
2000–2009 24.8%
1990–1999 39.0%
1980–1989 8.1%
1970–1979 7.6%
1960–1969 5.4%
1950–1959 5.3%
1940–1949 0.9%
1939 or earlier 9.0%
Bedrooms
Size % of units
No bedroom (studio) 0.0%
1 bedroom 3.0%
2 bedrooms 15.3%
3 bedrooms 26.5%
4 bedrooms 46.9%
5+ bedrooms 8.3%
Vehicles per household
Vehicles % of households
No vehicle 1.8%
1 vehicle 17.1%
2 vehicles 42.5%
3 or more 38.6%
Heating fuel
Fuel type %
Utility gas 74.8%
Electricity 3.9%
Propane / LP gas 1.2%
Fuel oil 15.6%
Wood 2.5%
Solar 0.4%
Households & families
Household type Count %
Married-couple family 1,661 68.8%
Cohabiting couple 173 7.2%
Male householder, no spouse 165 6.8%
Female householder, no spouse 415 17.2%
Households with children under 18 1,100 45.6%
Households with seniors (65+) 617 25.6%
Average household size 2.87
Marital status
Status Male Female
Never married 32.4% 28.8%
Married 60.6% 55.2%
Separated 0.6% 0.7%
Widowed 1.5% 5.3%
Divorced 5.0% 10.1%
Education
Some college, no degree
19.1%
Graduate / professional
17.8%
Metric %
HS diploma or higher 96.8%
Bachelor's or higher 49.8%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 90 4.5%
Kindergarten 54 2.7%
Elementary school 763 38.4%
High school 521 26.2%
College / grad school 558 28.1%
Employment
Industry of employment
Education & healthcare
22.5%
Professional & management
10.2%
Finance & real estate
9.1%
Transportation & utilities
8.8%
Public administration
6.1%
Arts, food & hospitality
6.0%
Agriculture & mining
1.3%
Occupation
Category %
Management, business & arts 48.6%
Service 14.1%
Sales & office 20.7%
Natural resources & construction 6.2%
Production & transportation 10.4%
Employment type
Type %
Private sector 79.9%
Government 17.5%
Self-employed 2.6%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 78.8%
Carpool 5.0%
Public transit 0.4%
Walk 0.3%
Work from home 15.5%
Other means 0.0%
Avg commute (minutes) 39.3
Poverty
Married-couple families
0.0%
Female-led households
6.5%
Income support
Source % of households
Social Security 25.7%
Retirement income 27.0%
Supplemental Security 3.5%
Cash public assistance 2.2%
Food stamps / SNAP 1.6%
Health indicators
Condition %
Obesity 29.7%
High blood pressure 0.0%
High cholesterol 0.0%
Diabetes 7.3%
Heart disease 4.5%
Stroke 2.1%
Asthma 9.3%
Arthritis 18.5%
Kidney disease 2.1%
Pulmonary disease 4.6%
Cancer 5.9%
Behavior / access %
Smoking 12.7%
Binge drinking 19.3%
No physical activity 17.3%
Less than 7 hrs sleep 30.2%
Depression 17.9%
Fair or poor health 8.9%
Poor mental health 13.2%
Poor physical health 7.5%
No health insurance 10.0%
Visited doctor (checkup) 74.2%
Visited dentist 70.6%
Cholesterol screening 0.0%
Teeth loss 9.1%
Veterans & disability
Veterans Count %
Civilian veterans 284 5.4%
Disability %
Any disability 5.9%
Under 18 0.8%
18–64 years 5.4%
65 and over 18.6%
Health insurance coverage
Type %
Private insurance 87.5%
Public insurance 18.9%
No insurance 3.0%
Uninsured under 19 0.3%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 6,616 95.0%
Spanish 282 4.3%
Other Indo-European 84 1.3%
Asian & Pacific Islander 109 1.6%
Other languages 77 1.2%
Place of birth & citizenship
Origin Count %
Native born (US) 6,254 89.8%
Born in same state 6,192 88.9%
Born in different state 4,066 58.4%
Foreign born 62 0.9%
Naturalized citizen 709 10.2%
Not a US citizen 513 72.4%
Ancestry
Ancestry Count %
Italian 1,118 16.1%
French 668 9.6%
Arab 198 2.8%
Irish 120 1.7%
English 56 0.8%
Ancestry Count %
German 52 0.7%
Norwegian 30 0.4%
Polish 24 0.3%
Dutch 7 0.1%
Technology access
Metric % of households
Computer access 34.7%
Internet access 96.1%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 08886
What city is ZIP code 08886 in?
ZIP code 08886 is primarily assigned to Stewartsville, New Jersey.
What county is ZIP code 08886 in?
ZIP code 08886 falls within Warren County, New Jersey.
Is ZIP code 08886 mostly owner-occupied?
92% of occupied units in ZIP code 08886 are owner-occupied, well above the national average.
How educated is the population of ZIP code 08886?
50% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
What is the median household income in ZIP code 08886?
The median household income in ZIP code 08886 is $151,500, above the national median of ~$75,000.
What is the typical home value in ZIP code 08886?
The median home value in ZIP code 08886 is $402,900.
What timezone is ZIP code 08886 in?
ZIP code 08886 observes the EST timezone.
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