What kinds of homes are in Sea Isle City, NJ?

Name: Types of homes in Sea Isle City, NJ, 2020–2024
Creator: US Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

Sea Isle City, NJ has 6,719 (±220) homes (2020–2024 American Community Survey).

That is about 3,049 homes per square mile of land.

14.9% are detached single-family houses.

12.6% are in buildings of two to four units.

14.8% are in buildings of five or more units.

Figures last updated on November 12, 2026.

Housing units: 6,719 (±220)
Detached houses: 14.9%
2–4 unit buildings: 12.6%
5+ unit buildings: 14.8%

Homes in Sea Isle City by building size

Housing units by units in structure, 2020–2024
Building type	Sea Isle City	Cape May County	New Jersey	United States
Single-family, detached	14.9% (±2.5 points)	51.7%	52.6%	61.3%
Single-family, attached (townhouse, rowhouse)	57.7% (±3.9 points)	26.0%	10.0%	6.2%
2 units	11.1% (±2.5 points)	7.3%	8.6%	3.4%
3 or 4 units	1.5% (±0.7 points)	3.0%	6.1%	4.3%
5 to 9 units	5.5% (±1.8 points)	3.0%	4.6%	4.5%
10 to 19 units	3.4% (±1.3 points)	1.9%	4.9%	4.3%
20 or more units	5.9% (±1.6 points)	3.9%	12.3%	10.3%
Mobile home	0.0% (±0.7 points)	3.3%	0.9%	5.6%
Boat, RV, van, etc.	0.0% (±0.7 points)	0.0%	0.0%	0.1%

In Sea Isle City, the share of homes in buildings of five or more units is higher than in Cape May County (8.8%).

It is also lower than in New Jersey (21.8%).

It is lower than the national figure (19.1%).

Homes in buildings of 5 or more units in places near Sea Isle City

Nearest places with a published estimate, compared with Sea Isle City
Place	Distance	Homes in buildings of 5 or more units	Compared with this place
Sea Isle City	—	14.8% (±2.7 points)	—
Seaville	4.0 mi	1.3% (±5.7 points)	Lower
Avalon Borough	4.9 mi	6.9% (±1.4 points)	Lower
South Dennis	5.6 mi	0.0% (±11.8 points)	Lower
Palermo	5.8 mi	0.0% (±6.1 points)	Lower
Dennis Township	7.3 mi	0.6% (±1.9 points)	Lower
Upper Township	7.5 mi	0.2% (±1.1 points)	Lower
Woodbine Borough	7.8 mi	9.1% (±4.8 points)	Lower
Marmora	7.8 mi	0.0% (±5.2 points)	Lower

Nearby places with a measurably lower figure: Seaville, NJ (1.3%), Avalon Borough, NJ (6.9%), South Dennis, NJ (0.0%).

Distance is measured in a straight line between the Census Bureau’s internal points for each place.

Homes in buildings of 5 or more units across Cape May County, place by place

Rank	Place	Homes in buildings of 5 or more units
1	Wildwood	20.8% (±4.2 points)
2	Sea Isle City	14.8% (±2.7 points)
3	Ocean City	11.7% (±1.9 points)
4	North Wildwood	10.8% (±2.9 points)
5	Wildwood Crest Borough	10.4% (±3.4 points)
6	Woodbine Borough	9.1% (±4.8 points)
7	Cape May	8.9% (±2.8 points)
8	Avalon Borough	6.9% (±1.4 points)

Showing 8 of 16 places in Cape May County, ranked from highest to lowest.

Survey years: 2020–2024 (American Community Survey 5-year estimates).

Margins of error are at the 90% confidence level.

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Questions about Sea Isle City

How many homes are in Sea Isle City?

Sea Isle City, NJ has an estimated 6,719 (±220) housing units, occupied and vacant (2020–2024 American Community Survey).

Are most homes in Sea Isle City houses or apartments?

14.9% are detached houses and 57.7% attached houses, while 27.4% are in buildings of two or more units.

How many two-family and small multifamily homes are in Sea Isle City?

12.6% of homes in Sea Isle City are in buildings of two to four units, the small rental buildings that are often owner-occupied.

Sources

Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Sea Isle City city, Cape May County, New Jersey

To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Sea Isle City city, Cape May County, New Jersey (county subdivision:66390, in state:34 county:009).

Each estimate (E or PE) has a margin of error beside it (M or PM).

The API needs a free key.

Request a Census API key.

DP04_0001E, DP04_0001M, DP04_0007PE, DP04_0007PM, DP04_0008PE, DP04_0008PM, DP04_0009PE, DP04_0009PM, DP04_0010PE, DP04_0010PM, DP04_0011PE, DP04_0011PM, DP04_0012PE, DP04_0012PM, DP04_0013PE, DP04_0013PM, DP04_0014PE, DP04_0014PM, DP04_0015PE, DP04_0015PM

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.