Terryville, NY Profile: Facts, Map & Data


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Terryville, New York - Basic Facts

The Terryville Census Designated Place had a population of 11,969 as of July 1, 2017. Terryville 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 Terryville is located at latitude 40.909 and longitude -73.0491 in Suffolk County. The formal boundaries for the Terryville Census Designated Place (see map below) encompass a land area of 3.23 sq. miles and a water area of 0 sq. miles. Suffolk County is in the Eastern time zone (GMT -5). The elevation is 151 feet.

The Terryville Census Designated Place (GNIS ID: 2390382) 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 Terryville Census Designated Place is located within Town of Brookhaven, a minor civil division (MCD) of Suffolk County.

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

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Terryville Census Designated Place, NY Boundary Map

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


Total Population 11,969
Daytime Population: Workers 2,549
Daytime Population: Residents 5,968
Total Daytime Population (TDP) 8,517
Ratio TDP/Total Population1 0.71
Population in Households 11,886
Population in Familes 10,332
Population in Group Qrtrs 83
Population Density2 3,708
Diversity Index3 52


Median Household Income $92,690
Average Household Income $118,461
Per Capita Income $38,235


Total Housing Units 3,975 (100%)
Owner Occupied HU 2,914 (73.3%)
Renter Occupied HU 927 (23.3%)
Vacant Housing Units 134 ( 3.4%)
Median Home Value $363,181
Average Home Value $400,163


Total Households 3,841
Average Household Size 3.09
Family Households 2,960
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 0.14% 0.23%
Households 0.05% 0.16%
Families -0.06% 0.09%
Median Household Income   2.24%
Per Capita Income   2.64%

Terryville, NY - Peer Comparisons by Rank and Percentile

The table below compares Terryville 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 # 168 86th
Population Density # 212 82nd
Diversity Index # 219 82nd
Median Household Income # 291 76th
Per Capita Income # 406 66th

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

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