Lake Grove, NY Profile: Facts, Map & Data


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Lake Grove, New York - Basic Facts

The Village of Lake Grove had a population of 11,527 as of July 1, 2017. Lake Grove 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 Lake Grove is located at latitude 40.8578 and longitude -73.1168 in Suffolk County. The formal boundaries for the Village of Lake Grove (see map below) encompass a land area of 2.95 sq. miles and a water area of 0 sq. miles. Suffolk County is in the Eastern time zone (GMT -5). The elevation is 118 feet.

The Village of Lake Grove (GNIS ID: 2390926) 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 Lake Grove is located within Town of Brookhaven, a minor civil division (MCD) of Suffolk County.

Beneath the boundary map are tables with Lake Grove 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 Lake Grove: Lakegrove, Lakeland, Lakeville.

Neighborhood Data

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Village of Lake Grove, NY Boundary Map

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Lake Grove, NY Data & Demographics (As of July 1, 2017)


Total Population 11,527
Daytime Population: Workers 3,842
Daytime Population: Residents 5,600
Total Daytime Population (TDP) 9,442
Ratio TDP/Total Population1 0.82
Population in Households 11,515
Population in Familes 10,028
Population in Group Qrtrs 12
Population Density2 3,901
Diversity Index3 41


Median Household Income $100,688
Average Household Income $121,704
Per Capita Income $41,519


Total Housing Units 4,070 (100%)
Owner Occupied HU 3,153 (77.5%)
Renter Occupied HU 775 (19.0%)
Vacant Housing Units 142 ( 3.5%)
Median Home Value $406,463
Average Home Value $452,489


Total Households 3,928
Average Household Size 2.93
Family Households 3,003
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 0.44% 0.43%
Households 0.41% 0.4%
Families 0.29% 0.33%
Median Household Income   1.49%
Per Capita Income   2.61%

Lake Grove, NY - Peer Comparisons by Rank and Percentile

The table below compares Lake Grove 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 # 172 86th
Population Density # 194 84th
Diversity Index # 318 73rd
Median Household Income # 234 81st
Per Capita Income # 328 73rd

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

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