Thornwood, NY Profile: Facts, Map & Data


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Thornwood, New York - Basic Facts

The Thornwood Census Designated Place had a population of 3,961 as of July 1, 2016. Thornwood 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 Thornwood is located at latitude 41.1186 and longitude -73.7795 in Westchester County. The formal boundaries for the Thornwood Census Designated Place (see map below) encompass a land area of 1.09 sq. miles and a water area of 0 sq. miles. Westchester County is in the Eastern time zone (GMT -5). The elevation is 269 feet.

The Thornwood Census Designated Place (GNIS ID: 2390386) 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 Thornwood Census Designated Place is located within Town of Mount Pleasant, a minor civil division (MCD) of Westchester County.

Beneath the boundary map are tables with Thornwood population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Alternate Unofficial Names for Thornwood: Hillside, Nanahagen, Sherman Park.

Neighborhood Data

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Thornwood Census Designated Place, NY Boundary Map

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Boundary Maps: Town of Mount Pleasant | Westchester County | New York Counties

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


Total Population 3,961
Population in Households 3,892
Population in Familes 3,416
Population in Group Qrtrs 69
Population Density1 3,624
Diversity Index2 40


Total Households 1,350
Average Household Size 2.88
Family Households 1,044
Average Family Size 3


Total Housing Units 1,395 (100%)
Owner Occupied HU 1,062 (76.1%)
Renter Occupied HU 289 (20.7%)
Vacant Housing Units 45 ( 3.2%)
Median Home Value $665,493
Average Home Value $680,085


Median Household Income $99,481
Average Household Income $123,174
Per Capita Income $41,868
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.84% 0.74%
Households 0.64% 0.61%
Families 0.72% 0.55%
Median Household Income   1.98%
Per Capita Income   1.68%
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.

Thornwood, NY - Peer Comparisons by Rank and Percentile

The table below compares Thornwood 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 # 410 66th
Population Density1 # 218 82nd
Diversity Index2 # 323 73rd
Median Household Income # 219 82nd
Per Capita Income # 291 76th

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

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