Port Washington, NY Profile: Facts, Map & Data


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Port Washington, New York - Basic Facts

The Port Washington Census Designated Place had a population of 16,341 as of July 1, 2017. Port Washington 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 Port Washington is located at latitude 40.8275 and longitude -73.68 in Nassau County. The formal boundaries for the Port Washington Census Designated Place (see map below) encompass a land area of 4.18 sq. miles and a water area of 1.43 sq. miles. Nassau County is in the Eastern time zone (GMT -5). The elevation is 102 feet.

The Port Washington Census Designated Place (GNIS ID: 2389700) 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 Port Washington Census Designated Place is located within Town of North Hempstead, a minor civil division (MCD) of Nassau County.

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

Alternate Unofficial Names for Port Washington: Cow Bay, Sinsinck.

Neighborhood Data

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Port Washington Census Designated Place, NY Boundary Map

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Port Washington, NY Data & Demographics (As of July 1, 2017)


Total Population 16,341
Daytime Population: Workers 13,114
Daytime Population: Residents 8,559
Total Daytime Population (TDP) 21,673
Ratio TDP/Total Population1 1.33
Population in Households 16,145
Population in Familes 14,040
Population in Group Qrtrs 196
Population Density2 3,905
Diversity Index3 56


Median Household Income $134,413
Average Household Income $196,291
Per Capita Income $69,983


Total Housing Units 6,323 (100%)
Owner Occupied HU 4,373 (69.2%)
Renter Occupied HU 1,444 (22.8%)
Vacant Housing Units 506 ( 8.0%)
Median Home Value $835,952
Average Home Value $855,517


Total Households 5,817
Average Household Size 2.78
Family Households 4,388
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 0.43% 0.4%
Households 0.29% 0.31%
Families 0.18% 0.24%
Median Household Income   1.83%
Per Capita Income   1.82%

Port Washington, NY - Peer Comparisons by Rank and Percentile

The table below compares Port Washington 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 # 117 90th
Population Density # 192 84th
Diversity Index # 178 85th
Median Household Income # 87 93rd
Per Capita Income # 90 93rd

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

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