Holbrook, NY Profile: Facts, Map & Data


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Holbrook, New York - Basic Facts

The Holbrook Census Designated Place had a population of 27,360 as of July 1, 2016. Holbrook 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 Holbrook is located at latitude 40.7944 and longitude -73.0707 in Suffolk County. The formal boundaries for the Holbrook Census Designated Place (see map below) encompass a land area of 7.17 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 Holbrook Census Designated Place (GNIS ID: 2389939) 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 Holbrook Census Designated Place is located within Town of Islip, a minor civil division (MCD) of Suffolk County.

Beneath the boundary map are tables with Holbrook 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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Holbrook Census Designated Place, NY Boundary Map

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

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


Total Population 27,360
Population in Households 27,217
Population in Familes 23,777
Population in Group Qrtrs 143
Population Density1 3,814
Diversity Index2 35


Total Households 9,641
Average Household Size 2.82
Family Households 7,309
Average Family Size 3


Total Housing Units 9,956 (100%)
Owner Occupied HU 7,338 (73.7%)
Renter Occupied HU 2,303 (23.1%)
Vacant Housing Units 315 ( 3.2%)
Median Home Value $372,757
Average Home Value $397,935


Median Household Income $99,789
Average Household Income $111,336
Per Capita Income $39,398
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.1% 0.18%
Households 0.15% 0.19%
Families 0.05% 0.13%
Median Household Income   1.22%
Per Capita Income   1.78%
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.

Holbrook, NY - Peer Comparisons by Rank and Percentile

The table below compares Holbrook 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 # 54 96th
Population Density1 # 201 83rd
Diversity Index2 # 394 67th
Median Household Income # 216 82nd
Per Capita Income # 335 72nd

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

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