Barnum Island, NY Profile: Facts, Map & Data


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Barnum Island, New York - Basic Facts

The Barnum Island Census Designated Place had a population of 2,550 as of July 1, 2017. Barnum Island ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in New York. See peer rankings below.

The primary coordinate point for Barnum Island is located at latitude 40.6063 and longitude -73.646 in Nassau County. The formal boundaries for the Barnum Island Census Designated Place (see map below) encompass a land area of 0.88 sq. miles and a water area of 0.38 sq. miles. Nassau County is in the Eastern time zone (GMT -5). The elevation is 3 feet.

The Barnum Island Census Designated Place (GNIS ID: 2389175) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

The Barnum Island Census Designated Place is located within Town of Hempstead, a minor civil division (MCD) of Nassau County.

Beneath the boundary map are tables with Barnum Island population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

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Barnum Island Census Designated Place, NY Boundary Map

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Barnum Island, NY Data & Demographics (As of July 1, 2017)


Total Population 2,550
Daytime Population: Workers 2,014
Daytime Population: Residents 1,283
Total Daytime Population (TDP) 3,297
Ratio TDP/Total Population1 1.29
Population in Households 2,474
Population in Familes 2,131
Population in Group Qrtrs 76
Population Density2 2,897
Diversity Index3 55


Median Household Income $92,402
Average Household Income $127,107
Per Capita Income $44,908


Total Housing Units 906 (100%)
Owner Occupied HU 753 (83.1%)
Renter Occupied HU 129 (14.2%)
Vacant Housing Units 24 ( 2.6%)
Median Home Value $540,493
Average Home Value $587,185


Total Households 882
Average Household Size 2.8
Family Households 671
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood 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.


2010-2017 2017-2022
Population 0.76% 0.64%
Households 0.63% 0.52%
Families 0.53% 0.44%
Median Household Income   3.38%
Per Capita Income   2.82%

Barnum Island, NY - Peer Comparisons by Rank and Percentile

The table below compares Barnum Island to the other 1,196 incorporated cities, towns and CDPs in New York by rank and percentile using July 1, 2017 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 # 540 55th
Population Density # 293 76th
Diversity Index # 186 85th
Median Household Income # 294 76th
Per Capita Income # 261 78th

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

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