08323 ZIP Code — Greenwich, NJ

Cumberland County, New Jersey

ZIP code 08323 is located in Greenwich, New Jersey, within Cumberland County. It covers approximately 17.77 square miles and serves a population of 683 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 856/609.

About ZIP code 08323

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $255,300. Owner-occupancy is high at 86%, well above the national average.

Median household income is $95,875. The poverty rate of 6% is below the national average. 45% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 32 minutes is near the national average.

Educational attainment is near the national average, with 34% of residents holding a bachelor's degree or higher.

Overall, ZIP code 08323 reflects a community defined by high homeownership and a significant Social Security-dependent population.

683

population

17.77

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

08323 ZIP code map

Cities in ZIP code 08323

Below are the cities the US Postal Service accepts for ZIP code 08323. Using any city not on this list may result in mail delivery delays.

City	Status
Greenwich	Acceptable
Greenwich	Preferred

Nearby ZIP codes

08353 Shiloh (6.1 mi) 08302 Bridgeton (6.3 mi) 08311 Cedarville (10.5 mi) 08079 Salem (10.7 mi) 19977 Smyrna (12.9 mi) 08318 Elmer (13.7 mi) 08345 Newport (14.3 mi) 19734 Townsend (14.7 mi) 08098 Woodstown (16.9 mi) 19709 Middletown (17.4 mi) 19901 Dover (17.5 mi) 08070 Pennsville (18.2 mi)

Demographics updated 06/2026

Population
Total population	683
Population density	38 / sq mi
State FIPS	34
County FIPS	011

Geography
Land area	17.77 sq mi
Water area	0.97 sq mi
Latitude	39.3908
Longitude	-75.3649
Timezone	Eastern (ET)
Area code	856/609

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	25.5%	44.1%	30.2%
$50k – $100k	35.0%	30.9%	26.7%
$100k – $200k	35.5%	20.1%	28.3%
Over $200k	4.0%	4.9%	14.8%

Demographics & statistics

683

Population

People per sq mi

49.1

Median age

$95,875

Median household income

$46,598

Per capita income

$255,300

Median home value

$1,063

Median monthly rent

85.6%

Home ownership

6.1%

Poverty rate

8.5%

Unemployment

282

Housing units

34.0%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	103	15.1%
18 and over	580	84.9%
65 and over	165	24.2%
Median age	49.1 years

Race & ethnicity

White 83.5%

Two or more races 7.3%

Hispanic or Latino 5.9%

Black or African American 2.2%

Asian 0.6%

American Indian / Alaska Native 0.6%

Group	Count	%
White	606	83.5%
Two or more races	53	7.3%
Hispanic or Latino	43	5.9%
Black or African American	16	2.2%
Asian	4	0.6%
American Indian / Alaska Native	4	0.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	25.5%	44.1%	30.2%
$50k – $100k	35.0%	30.9%	26.7%
$100k – $200k	35.5%	20.1%	28.3%
Over $200k	4.0%	4.9%	14.8%

Under $10k 3.0%

$10k–$15k 2.2%

$15k–$25k 2.6%

$25k–$35k 4.1%

$35k–$50k 6.3%

$50k–$75k 18.8%

$75k–$100k 16.2%

$100k–$150k 19.9%

$150k–$200k 12.5%

$200k+ 14.4%

Range	% of households
Under $10k	3.0%
$10k–$15k	2.2%
$15k–$25k	2.6%
$25k–$35k	4.1%
$35k–$50k	6.3%
$50k–$75k	18.8%
$75k–$100k	16.2%
$100k–$150k	19.9%
$150k–$200k	12.5%
$200k+	14.4%
Median income	$95,875

Housing

Home values

$50k–$100k 1.7%

$100k–$150k 13.4%

$150k–$200k 18.5%

$200k–$300k 31.0%

$300k–$500k 16.4%

$500k–$1M 19.0%

Housing overview

Metric	Value
Median home value	$255,300
Median rent / month	$1,063
Owner occupied	85.6%
Renter occupied	14.4%
Vacant	15.6%
Single-family detached	97.8%
Large apartment buildings	0.0%
Mobile homes	0.0%
Median rooms	6.6
Avg household size (owned)	2.55

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	7.2%
1990–1999	8.7%
1980–1989	6.5%
1970–1979	11.5%
1960–1969	3.4%
1950–1959	13.4%
1940–1949	6.5%
1939 or earlier	42.7%

Bedrooms

Size	% of units
No bedroom (studio)	1.9%
1 bedroom	5.0%
2 bedrooms	22.7%
3 bedrooms	47.4%
4 bedrooms	10.9%
5+ bedrooms	12.1%

Vehicles per household

Vehicles	% of households
No vehicle	2.6%
1 vehicle	25.1%
2 vehicles	33.2%
3 or more	39.1%

Heating fuel

Fuel type	%
Utility gas	1.8%
Electricity	7.7%
Propane / LP gas	15.1%
Fuel oil	67.2%
Wood	7.0%
Solar	0.4%

Households & families

Household type	Count	%
Married-couple family	187	69.0%
Cohabiting couple	3	1.1%
Male householder, no spouse	60	22.1%
Female householder, no spouse	21	7.7%
Households with children under 18	62	22.9%
Households with seniors (65+)	116	42.8%
Average household size	2.52

Marital status

Status	Male	Female
Never married	22.5%	19.3%
Married	64.0%	68.2%
Separated	0.0%	1.0%
Widowed	1.6%	4.1%
Divorced	11.9%	7.4%

Education

Less than 9th grade 1.2%

Some HS, no diploma 4.8%

HS graduate 28.0%

Some college, no degree 24.3%

Associate's degree 7.7%

Bachelor's degree 17.4%

Graduate / professional 16.6%

Metric	%
HS diploma or higher	94.0%
Bachelor's or higher	34.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	16	12.6%
Elementary school	47	37.0%
High school	28	22.0%
College / grad school	36	28.3%

Employment

Industry of employment

Education & healthcare 29.4%

Retail trade 16.2%

Professional & management 10.9%

Construction 10.2%

Finance & real estate 7.9%

Transportation & utilities 5.6%

Arts, food & hospitality 5.0%

Public administration 3.6%

Other services 3.3%

Wholesale trade 3.0%

Agriculture & mining 2.6%

Manufacturing 2.3%

Occupation

Category	%
Management, business & arts	53.8%
Service	14.5%
Sales & office	16.8%
Natural resources & construction	5.3%
Production & transportation	9.6%

Employment type

Type	%
Private sector	80.9%
Government	12.2%
Self-employed	6.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	81.8%
Carpool	5.1%
Public transit	0.3%
Walk	0.7%
Work from home	11.1%
Other means	1.0%
Avg commute (minutes)	32.3

Poverty

All people 6.1%

Under 18 years 0.0%

18 and over 7.2%

Married-couple families 5.3%

Female-led households 0.0%

Income support

Source	% of households
Social Security	45.0%
Retirement income	36.5%
Supplemental Security	4.1%
Cash public assistance	1.8%
Food stamps / SNAP	4.4%

Health indicators

Condition	%
Obesity	30.9%
High blood pressure	0.0%
High cholesterol	0.0%
Diabetes	10.4%
Heart disease	7.5%
Stroke	3.3%
Asthma	9.6%
Arthritis	26.1%
Kidney disease	3.0%
Pulmonary disease	7.4%
Cancer	7.9%

Behavior / access	%
Smoking	16.6%
Binge drinking	17.0%
No physical activity	23.6%
Less than 7 hrs sleep	34.9%
Depression	20.8%
Fair or poor health	13.1%
Poor mental health	14.0%
Poor physical health	10.2%
No health insurance	11.4%
Visited doctor (checkup)	77.5%
Visited dentist	67.3%
Cholesterol screening	0.0%
Teeth loss	12.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	39	6.7%

Disability	%
Any disability	17.9%
Under 18	11.7%
18–64 years	15.7%
65 and over	27.3%

Health insurance coverage

Type	%
Private insurance	77.2%
Public insurance	31.9%
No insurance	8.8%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	665	97.4%
Spanish	9	1.4%
Other Indo-European	7	1.1%
Asian & Pacific Islander	2	0.3%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	645	94.4%
Born in same state	644	94.3%
Born in different state	523	76.6%
Foreign born	1	0.1%
Naturalized citizen	38	5.6%
Not a US citizen	15	39.5%

Ancestry

Ancestry	Count	%
Italian	131	19.2%
French	80	11.7%
Arab	47	6.9%
English	16	2.3%

Ancestry	Count	%
Irish	11	1.6%
Polish	2	0.3%
German	1	0.1%

Technology access

Metric	% of households
Computer access	39.7%
Internet access	87.1%

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

Frequently asked questions about ZIP code 08323

What city is ZIP code 08323 in?

ZIP code 08323 is primarily assigned to Greenwich, New Jersey.

What county is ZIP code 08323 in?

ZIP code 08323 falls within Cumberland County, New Jersey.

Is ZIP code 08323 mostly owner-occupied?

86% of occupied units in ZIP code 08323 are owner-occupied, well above the national average.

Does ZIP code 08323 have a large retiree population?

45% of households in ZIP code 08323 receive Social Security income, suggesting a significant retiree or disability population.

What is the population of ZIP code 08323?

ZIP code 08323 has an estimated population of 683 residents, with a density of 38 people per square mile.

What is the median household income in ZIP code 08323?

The median household income in ZIP code 08323 is $95,875, above the national median of ~$75,000.

What timezone is ZIP code 08323 in?

ZIP code 08323 observes the EST timezone.