Sea Isle City ZIP Code List — Cape May County, NJ

There is one unique ZIP code in Sea Isle City, New Jersey and it is 08243. Area code: 609/640.

ZIP codes

2.20

sq mi land

1.97

sq mi water

609/640

area code

Sea Isle City, NJ ZIP code map

About Sea Isle City, NJ

Sea Isle City, New Jersey, is a charming coastal destination known for its beautiful beaches and vibrant community. Located in Cape May County, this family-friendly city offers a variety of activities and attractions for visitors and residents alike. With a laid-back atmosphere and a plethora of recreational opportunities, Sea Isle City is a popular spot for summer vacations and year-round living.

Location & geography

Situated on the southern coast of New Jersey, Sea Isle City is bordered by the Atlantic Ocean to the east and is part of the larger Cape May region. Nearby cities include Ocean City, which is about 10 miles to the north, Avalon approximately 8 miles to the south, and Wildwood, located around 13 miles to the west. The city covers a land area of 2.20 square miles and is complemented by 1.97 square miles of water, providing ample space for beachgoers and outdoor activities.

Community & economy

Sea Isle City boasts a warm and friendly community, characterized by its strong sense of local pride and active involvement in cultural events. The city thrives on tourism, offering various dining, shopping, and recreational options that cater to both residents and visitors. Daily life in Sea Isle City is often filled with beach activities, seasonal festivals, and community gatherings that highlight its welcoming spirit.

Transportation

Sea Isle City can be accessed via New Jersey Route 52, which connects to the mainland and the Garden State Parkway. The nearest major airport is Atlantic City International Airport, located about 30 miles to the north. Public transportation options are available, including regional bus services that facilitate travel to surrounding areas.

History

Sea Isle City was founded in the late 19th century as a seaside resort, with its first hotel constructed in 1882 attracting visitors from Philadelphia and beyond. The city's economy has historically relied on tourism, which continues to be its primary industry. Notable events throughout its history include the establishment of the Sea Isle City Historical Museum, which showcases the city's rich past.

Did you know?

One surprising fact about Sea Isle City is that it was once home to an amusement park called the Sea Isle City Funland, which operated in the early 20th century. Additionally, the city is well-known for its annual events, such as the Sea Isle City Food Truck Festival, which attracts food lovers from all over.

ZIP codes for Sea Isle City, NJ (1)

ZIP code	City	County	Map
08243	Sea Isle City	Cape May	View map

Demographics & statistics

2,047

Population

65.1

Median age

$90,703

Median household income

$71,268

Per capita income

$903,100

Median home value

$1,210

Median monthly rent

92.8%

Home ownership

5.5%

Poverty rate

5.8%

Unemployment

6,659

Housing units

45.6%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

100

120

55–59

122

145

60–64

147

272

65–74

277

186

75–84

189

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	85	4.2%
18 and over	1,962	95.8%
65 and over	1,028	50.2%
Median age	65.1 years

Race & ethnicity

White 94.8%

Two or more races 2.9%

Hispanic or Latino 2%

Black or African American 0.2%

Group	Count	%
White	1,981	94.8%
Two or more races	60	2.9%
Hispanic or Latino	42	2%
Black or African American	5	0.2%

Household income

Under $10k 2.4%

$10k–$15k 1.1%

$15k–$25k 2.4%

$25k–$35k 4.5%

$35k–$50k 15.3%

$50k–$75k 15.4%

$75k–$100k 12.4%

$100k–$150k 17.4%

$150k–$200k 10.7%

$200k+ 18.4%

Range	% of households
Under $10k	2.4%
$10k–$15k	1.1%
$15k–$25k	2.4%
$25k–$35k	4.5%
$35k–$50k	15.3%
$50k–$75k	15.4%
$75k–$100k	12.4%
$100k–$150k	17.4%
$150k–$200k	10.7%
$200k+	18.4%
Median income	$90,703

Housing

Home values

Under $50k 0.5%

$50k–$100k 0.9%

$100k–$150k 0.4%

$200k–$300k 0.4%

$300k–$500k 7.5%

$500k–$1M 53.0%

$1M+ 37.5%

Housing overview

Metric	Value
Median home value	$903,100
Median rent / month	$1,210
Owner occupied	92.8%
Renter occupied	7.2%
Vacant	83.3%
Single-family detached	14.4%
Large apartment buildings	4.3%
Mobile homes	0.0%
Median rooms	6.7
Avg household size (owned)	1.79

Year built

Era	%
2020 or later	0.4%
2010–2019	11.4%
2000–2009	26.6%
1990–1999	11.7%
1980–1989	25.1%
1970–1979	11.9%
1960–1969	3.9%
1950–1959	3.2%
1940–1949	1.6%
1939 or earlier	4.1%

Bedrooms

Size	% of units
No bedroom (studio)	1.5%
1 bedroom	0.9%
2 bedrooms	9.6%
3 bedrooms	23.3%
4 bedrooms	43.3%
5+ bedrooms	21.3%

Vehicles per household

Vehicles	% of households
No vehicle	5.6%
1 vehicle	44.2%
2 vehicles	38.5%
3 or more	11.7%

Heating fuel

Fuel type	%
Utility gas	78.0%
Electricity	19.7%
Propane / LP gas	0.6%
Fuel oil	1.1%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	683	60.6%
Cohabiting couple	38	3.4%
Male householder, no spouse	188	16.7%
Female householder, no spouse	218	19.3%
Households with children under 18	62	5.5%
Households with seniors (65+)	669	59.4%
Average household size	1.81

Marital status

Status	Male	Female
Never married	18.3%	6.3%
Married	69.6%	72.8%
Separated	0.4%	1.4%
Widowed	3.4%	11.0%
Divorced	8.3%	8.5%

Education

Less than 9th grade 0.2%

Some HS, no diploma 2.0%

HS graduate 23.8%

Some college, no degree 21.6%

Associate's degree 6.7%

Bachelor's degree 26.9%

Graduate / professional 18.7%

Metric	%
HS diploma or higher	97.8%
Bachelor's or higher	45.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	54	34.8%
High school	25	16.1%
College / grad school	76	49.0%

Employment

Industry of employment

Education & healthcare 22.2%

Professional & management 19.5%

Finance & real estate 15.3%

Arts, food & hospitality 10.0%

Construction 9.9%

Retail trade 7.3%

Information 3.6%

Wholesale trade 3.2%

Other services 3.1%

Manufacturing 2.5%

Public administration 2.5%

Transportation & utilities 0.6%

Agriculture & mining 0.4%

Occupation

Category	%
Management, business & arts	45.3%
Service	11.8%
Sales & office	28.6%
Natural resources & construction	9.9%
Production & transportation	4.4%

Employment type

Type	%
Private sector	80.2%
Government	9.0%
Self-employed	10.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	70.0%
Carpool	3.2%
Public transit	1.5%
Walk	4.2%
Other means	0.6%
Avg commute (minutes)	24.5

Poverty

All people 5.5%

Under 18 years 4.7%

18 and over 5.6%

Married-couple families 3.8%

Female-led households 20.7%

Income support

Source	% of households
Social Security	59.9%
Retirement income	54.9%
Supplemental Security	3.0%
Cash public assistance	1.5%
Food stamps / SNAP	1.4%

Health indicators

Condition	%
High blood pressure	0.0%
High cholesterol	0.0%
Heart disease	8.9%
Stroke	3.6%
Asthma	9.1%
Arthritis	30.3%
Kidney disease	3.5%
Pulmonary disease	7.5%
Cancer	10.3%

Behavior / access	%
Binge drinking	15.2%
No physical activity	19.2%
Less than 7 hrs sleep	27.9%
Fair or poor health	12.2%
Poor mental health	11.4%
Poor physical health	9.7%
No health insurance	8.7%
Visited doctor (checkup)	81.1%
Visited dentist	72.6%
Cholesterol screening	0.0%
Teeth loss	8.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	144	7.3%

Disability	%
Any disability	12.8%
Under 18	0.0%
18–64 years	5.7%
65 and over	20.4%

Health insurance coverage

Type	%
Private insurance	81.6%
Public insurance	55.3%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,041	99.7%
Spanish	44	2.2%
Other Indo-European	29	1.4%
Asian & Pacific Islander	15	0.7%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,977	96.6%
Born in same state	1,971	96.3%
Born in different state	615	30.0%
Foreign born	6	0.3%
Naturalized citizen	70	3.4%
Not a US citizen	35	50.0%

Ancestry

Ancestry	Count	%
Italian	965	47.1%
French	187	9.1%
Arab	77	3.8%
Polish	24	1.2%

Ancestry	Count	%
Irish	11	0.5%
English	11	0.5%
German	6	0.3%
Dutch	4	0.2%

Technology access

Metric	% of households
Computer access	55.1%
Internet access	99.2%

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

Frequently asked questions

What is the ZIP code for Sea Isle City, NJ?

Sea Isle City, NJ has one ZIP code: 08243.

What is the main ZIP code for Sea Isle City, NJ?

The primary ZIP code for Sea Isle City, NJ is 08243. The city uses area code 609 or 640 for phone service.

What county is Sea Isle City, NJ in?

Sea Isle City is located in Cape May County, New Jersey.

How many ZIP codes are in Sea Isle City, NJ?

Sea Isle City, NJ has 1 ZIP code.

What is the ZIP code for the Sea Isle City beachfront and boardwalk area?

The Sea Isle City beachfront and boardwalk area is located in ZIP code 08243, which covers the entire city's main commercial and residential districts along the Jersey Shore.

What ZIP code should I use when mailing correspondence to businesses in downtown Sea Isle City near the bay?

All businesses and residences in downtown Sea Isle City, including those near the bay area, use ZIP code 08243 for mailing addresses.