Sea Cliff, NY Profile: Facts, Map & Data


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Sea Cliff, New York - Basic Facts

The Village of Sea Cliff had a population of 5,058 as of July 1, 2018. Sea Cliff ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in New York. See peer rankings below.

The primary coordinate point for Sea Cliff is located at latitude 40.8462 and longitude -73.6504 in Nassau County. The formal boundaries for the Village of Sea Cliff (see map below) encompass a land area of 1.12 sq. miles and a water area of 0.85 sq. miles. Nassau County is in the Eastern time zone (GMT -5). The elevation is 184 feet.

The Village of Sea Cliff (GNIS ID: 2391126) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The Village of Sea Cliff is located within Town of Oyster Bay, a minor civil division (MCD) of Nassau County.

Beneath the boundary map are tables with Sea Cliff population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2018.

Alternate Unofficial Names for Sea Cliff: Carpenterville, Littleworth, Sea Cliff Grove.

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Village of Sea Cliff, NY Boundary Map

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Sea Cliff, NY Data & Demographics (As of July 1, 2018)


Total Population 5,058
Population in Households 4,968
Population in Familes 4,139
Population in Group Qrtrs 90
Population Density2 4,537
Diversity Index3 34


Median Household Income $119,645
Average Household Income $173,641
Per Capita Income $67,850


Total Housing Units 2,058 (100%)
Owner Occupied HU 1,468 (71.3%)
Renter Occupied HU 492 (23.9%)
Vacant Housing Units 98 ( 4.8%)
Median Home Value $754,913
Average Home Value $843,035


Total Households 1,960
Average Household Size 2.53
Family Households 1,311
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 0.15% 0.17%
Households 0.0% 0.08%
Families -0.13% 0.0%
Median Household Income   1.85%
Per Capita Income   2.45%

Sea Cliff, NY - Peer Comparisons by Rank and Percentile

The table below compares Sea Cliff to the other 1,196 incorporated cities, towns and CDPs in New York by rank and percentile using July 1, 2018 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 # 345 71st
Population Density # 156 87th
Diversity Index # 423 65th
Median Household Income # 136 89th
Per Capita Income # 105 91st

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

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