Shirley, NY Profile: Facts & Data


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Shirley, New York - Basic Facts

The Shirley Census Designated Place had a population of 27,946 as of July 1, 2020. Shirley ranks in the upper quartile for 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 Shirley is located at latitude 40.8015 and longitude -72.8676 in Suffolk County. The formal boundaries for the Shirley Census Designated Place encompass a land area of 11.09 sq. miles and a water area of 0.43 sq. miles. Suffolk County is in the Eastern time zone (GMT -5). The elevation is 56 feet.

The Shirley Census Designated Place (GNIS ID: 2390296) 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 Shirley Census Designated Place is located within Town of Brookhaven, a minor civil division (MCD) of Suffolk County.


Shirley, NY Data & Demographics (As of July 1, 2020)


Total Population 27,946 (100%)
Population in Households 27,667 (99.0%)
Population in Families 24,156 (86.4%)
Population in Group Quarters1 279 ( 1.0%)
Population Density 2,436
Diversity Index2 62


Median Household Income $90,118
Average Household Income $106,347
% of Income for Mortgage4 12%
Per Capita Income $31,931
Wealth Index5 120


Total HU (Housing Units) 9,129 (100%)
Owner Occupied HU 7,093 (77.7%)
Renter Occupied HU 1,293 (14.2%)
Vacant Housing Units 743 ( 8.1%)
Median Home Value $263,483
Average Home Value $288,788
Housing Affordability Index3 137


Total Households 8,386
Average Household Size 3.3
Family Households 6,811
Average Family Size 4
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. 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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2010-2020 2020-2025
Population 0.03% -0.24%
Households 0.04% -0.25%
Families -0.03% -0.29%
Median Household Income   2.21%
Per Capita Income   2.27%
Owner Occupied HU   -0.2%


Shirley, NY - Peer Comparisons by Rank and Percentile

The table below compares Shirley to the other 1,195 incorporated cities, towns and CDPs in New York by rank and percentile using July 1, 2020 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 # 49 96th
Population Density # 348 71st
Median Household Income # 364 70th
Housing Affordability Index # 488 41st
Per Capita Income # 653 45th
Diversity Index # 144 88th

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

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