Locust Valley, NY Profile: Facts, Map & Data


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Locust Valley, New York - Basic Facts

The Locust Valley Census Designated Place had a population of 3,475 as of July 1, 2018. Locust Valley 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 Locust Valley is located at latitude 40.8781 and longitude -73.5888 in Nassau County. The formal boundaries for the Locust Valley Census Designated Place (see map below) encompass a land area of 0.91 sq. miles and a water area of 0.02 sq. miles. Nassau County is in the Eastern time zone (GMT -5). The elevation is 128 feet.

The Locust Valley Census Designated Place (GNIS ID: 2390086) 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 Locust Valley Census Designated Place is located within Town of Oyster Bay, a minor civil division (MCD) of Nassau County.

Beneath the boundary map are tables with Locust Valley 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 Locust Valley: Buckram, Old Kaintuck Mill.

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Locust Valley Census Designated Place, NY Boundary Map

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Boundary Maps: Town of Oyster Bay | Nassau County | New York Counties

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Locust Valley, NY Data & Demographics (As of July 1, 2018)


Total Population 3,475
Population in Households 3,458
Population in Familes 2,994
Population in Group Qrtrs 17
Population Density2 3,829
Diversity Index3 57


Median Household Income $97,101
Average Household Income $149,116
Per Capita Income $52,292


Total Housing Units 1,281 (100%)
Owner Occupied HU 900 (70.3%)
Renter Occupied HU 315 (24.6%)
Vacant Housing Units 66 ( 5.2%)
Median Home Value $638,089
Average Home Value $818,639


Total Households 1,215
Average Household Size 2.85
Family Households 882
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 0.24% 0.25%
Households 0.07% 0.13%
Families -0.05% 0.07%
Median Household Income   2.37%
Per Capita Income   2.62%

Locust Valley, NY - Peer Comparisons by Rank and Percentile

The table below compares Locust Valley 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 # 449 62nd
Population Density # 200 83rd
Diversity Index # 175 85th
Median Household Income # 294 76th
Per Capita Income # 192 84th

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

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