Sea Isle City, NJ Profile: Facts, Map & Data


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Sea Isle City, New Jersey - Basic Facts

The City of Sea Isle City had a population of 2,512 as of July 1, 2016. Sea Isle City ranks in the lower quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in New Jersey. See peer rankings below.

The primary coordinate point for Sea Isle City is located at latitude 39.1538 and longitude -74.6964 in Cape May County. The formal boundaries for the City of Sea Isle City (see map below) encompass a land area of 2.17 sq. miles and a water area of 0.36 sq. miles. Cape May County is in the Eastern time zone (GMT -5). The elevation is 7 feet.

The City of Sea Isle City (GNIS ID: 885389) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Beneath the boundary map are tables with Sea Isle City population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Alternate Unofficial Names for Sea Isle City: Ludlam's Beach, Strathmere.

Neighborhood Data

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City of Sea Isle City, NJ Boundary Map

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Sea Isle City, NJ Data & Demographics (As of July 1, 2016)


Total Population 2,512
Population in Households 2,512
Population in Familes 1,943
Population in Group Qrtrs 0
Population Density1 1,158
Diversity Index2 9


Total Households 1,242
Average Household Size 2.02
Family Households 768
Average Family Size 3


Total Housing Units 8,082 (100%)
Owner Occupied HU 973 (12.0%)
Renter Occupied HU 269 ( 3.3%)
Vacant Housing Units 6,840 (84.6%)
Median Home Value $710,401
Average Home Value $690,827


Median Household Income $63,405
Average Household Income $96,874
Per Capita Income $47,897
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 2.8% 1.0%
Households 2.86% 1.04%
Families 2.81% 1.02%
Median Household Income   -0.5%
Per Capita Income   1.13%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Sea Isle City, NJ - Peer Comparisons by Rank and Percentile

The table below compares Sea Isle City to the other 545 incorporated cities, towns and CDPs in New Jersey by rank and percentile using July 1, 2016 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 370 32nd
Population Density1 # 411 25th
Diversity Index2 # 528 3rd
Median Household Income # 370 32nd
Per Capita Income # 140 74th

Additional comparisons and rankings can be made with a VERY EASY TO USE New Jersey Census Data Comparison Tool.

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