Yaphank, NY Profile: Facts, Map & Data


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Yaphank, New York - Basic Facts

The Yaphank Census Designated Place had a population of 6,029 as of July 1, 2016. Yaphank ranks in the lower quartile for Population Density and the upper quartile for 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 Yaphank is located at latitude 40.831 and longitude -72.9316 in Suffolk County. The formal boundaries for the Yaphank Census Designated Place (see map below) encompass a land area of 13.64 sq. miles and a water area of 0.12 sq. miles. Suffolk County is in the Eastern time zone (GMT -5). The elevation is 43 feet.

The Yaphank Census Designated Place (GNIS ID: 2390547) 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 Yaphank Census Designated Place is located within Town of Brookhaven, a minor civil division (MCD) of Suffolk County.

Beneath the boundary map are tables with Yaphank 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 Yaphank: Millville.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


Yaphank Census Designated Place, NY Boundary Map

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Boundary Maps: Town of Brookhaven | Suffolk County | New York Counties

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Yaphank, NY Data & Demographics (As of July 1, 2016)


Total Population 6,029
Population in Households 5,113
Population in Familes 4,258
Population in Group Qrtrs 916
Population Density1 442
Diversity Index2 45


Total Households 1,901
Average Household Size 2.69
Family Households 1,341
Average Family Size 3


Total Housing Units 2,007 (100%)
Owner Occupied HU 1,658 (82.6%)
Renter Occupied HU 243 (12.1%)
Vacant Housing Units 106 ( 5.3%)
Median Home Value $320,782
Average Home Value $352,986


Median Household Income $98,750
Average Household Income $108,150
Per Capita Income $38,915
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.22% 0.24%
Households 0.25% 0.23%
Families 0.19% 0.21%
Median Household Income   1.12%
Per Capita Income   1.41%
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.

Yaphank, NY - Peer Comparisons by Rank and Percentile

The table below compares Yaphank to the other 1,196 incorporated cities, towns and CDPs in New York 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 # 305 75th
Population Density1 # 983 18th
Diversity Index2 # 276 77th
Median Household Income # 221 82nd
Per Capita Income # 347 71st

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