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Brookhaven, NY Profile: Facts & Data

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Brookhaven, New York - Basic Facts

The Brookhaven CDP(1) had a population of 3,546 as of July 1, 2025.

The primary coordinate point for Brookhaven is located at latitude 40.7793 and longitude -72.9154 in Suffolk County. The formal boundaries for the Brookhaven Census Designated Place encompass a land area of 5.8 sq. miles and a water area of 0.15 sq. miles. Suffolk County is in the Eastern time zone (GMT -5).

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


  1. A Census Designated Place (CDP) is a statistical counterpart to a self-governing (incorporated) place such as a city, town, or village. A CDP is not a legal entity and has no governmental functions.

Jump to... (On This Page!)
  1. Brookhaven 2025 Demographic Data
  2. Growth Rates for Brookhaven (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. New York Research Tools (Easy Tools & Current Data)
  3. New York Data Comparison Tool - 2025 Demographics
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Brookhaven, NY Data & Demographics (As of July 1, 2025)

POPULATION

Total Population 3,546 (100%)
Population in Households 2,873 (81.0%)
Population in Families 2,367 (66.8%)
Population in Group Quarters1 673 (19.0%)
Population Density 612
Diversity Index2 52
 
 

INCOME

Median Household Income $121,657
Average Household Income $154,811
% of Income for Mortgage4 36%
Per Capita Income $48,744
Wealth Index5 185
Socioeconomic Status Index6 Moderate (51.2)
 

HOUSING

Total HU (Housing Units) 1,172 (100%)
Owner Occupied HU 953 (81.3%)
Renter Occupied HU 133 (11.3%)
Vacant Housing Units 86 ( 7.3%)
Median Home Value $699,385
Average Home Value $803,993
Housing Affordability Index3 58
 

HOUSEHOLDS

Total Households 1,086
Average Household Size 2.65
Family Households 743
Average Family Size 3.00
NOTES
  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.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR

 2020-2025 2025-2030
Population 1.20% -0.19%
Households -0.19% -0.07%
Families   -0.19%
Median Household Income   1.62%
Per Capita Income   1.64%
Owner Occupied HU   0.04%

Brookhaven, NY - Peer Comparisons by Rank and Percentile

The table below compares Brookhaven to the other 1,293 incorporated cities, towns and CDPs in New York by rank and percentile using July 1, 2025 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 # 450 65th
Population Density # 885 32nd
Median Household Income # 319 75th
Housing Affordability Index # 229 18th
Per Capita Income # 534 59th
Diversity Index # 363 72nd

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

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