West Sayville, NY Profile: Facts, Map & Data


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West Sayville, New York - Basic Facts

The West Sayville Census Designated Place had a population of 5,114 as of July 1, 2016.

The primary coordinate point for West Sayville is located at latitude 40.7297 and longitude -73.1052 in Suffolk County. The formal boundaries for the West Sayville Census Designated Place (see map below) encompass a land area of 1.92 sq. miles and a water area of 0.2 sq. miles. Suffolk County is in the Eastern time zone (GMT -5). The elevation is 13 feet.

The West Sayville Census Designated Place (GNIS ID: 2390490) 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 West Sayville Census Designated Place is located within Town of Islip, a minor civil division (MCD) of Suffolk County.

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

Neighborhood Data

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West Sayville Census Designated Place, NY Boundary Map

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

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


Total Population 5,114
Population in Households 5,030
Population in Familes 4,410
Population in Group Qrtrs 84
Population Density1 2,658
Diversity Index2 17


Total Households 1,818
Average Household Size 2.77
Family Households 1,339
Average Family Size 3


Total Housing Units 2,186 (100%)
Owner Occupied HU 1,504 (68.8%)
Renter Occupied HU 314 (14.4%)
Vacant Housing Units 368 (16.8%)
Median Home Value $400,921
Average Home Value $406,067


Median Household Income $94,254
Average Household Income $117,484
Per Capita Income $42,285
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.33% 0.34%
Households 0.42% 0.37%
Families 0.3% 0.3%
Median Household Income   2.19%
Per Capita Income   1.91%
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.

West Sayville, NY - Peer Comparisons by Rank and Percentile

The table below compares West Sayville 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 # 341 72nd
Population Density1 # 320 73rd
Diversity Index2 # 750 37th
Median Household Income # 253 79th
Per Capita Income # 285 76th

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

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