| Official Name: | Brookhaven, New York |
| Settlement Type: | Hamlet and census-designated place |
| Pushpin Map: | New York |
| Pushpin Map Caption: | Location within the state of New York |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | New York |
| Subdivision Type2: | County |
| Subdivision Name2: | Suffolk |
| Subdivision Type3: | Town |
| Subdivision Name3: | Brookhaven |
| Area Footnotes: | [1] |
| Area Total Km2: | 15.38 |
| Area Land Km2: | 15.01 |
| Area Water Km2: | 0.36 |
| Area Total Sq Mi: | 5.94 |
| Area Land Sq Mi: | 5.80 |
| Area Water Sq Mi: | 0.14 |
| Population As Of: | 2020 |
| Population Total: | 3330 |
| Population Density Km2: | 221.79 |
| Population Density Sq Mi: | 574.44 |
| Timezone: | Eastern Time Zone |
| Utc Offset: | −05:00 |
| Utc Offset Dst: | −04:00 |
| Elevation M: | 3 |
| Elevation Ft: | 10 |
| Coordinates: | 40.7758°N -72.9181°W |
| Postal Code Type: | ZIP Code |
| Postal Code: | 11719 |
| Area Code: | 631, 934 |
| Blank Name: | FIPS code |
| Blank Info: | 36-09000 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0944835 |
| Unit Pref: | Imperial |
Brookhaven is a hamlet and census-designated place in Brookhaven Town, Suffolk County, New York, United States. The population was 3,451 at the 2010 census.[2]
According to the United States Census Bureau, the CDP has a total area of 15.3sqkm, of which 14.9sqkm is land and 0.4sqkm, or 2.47%, is water.[2]
As of the census[3] of 2000, there were 3,570 people, 1,101 households, and 833 families residing in the CDP. The population density was 590.3sp=usNaNsp=us. There were 1,167 housing units at an average density of 193sp=usNaNsp=us. The racial makeup of the CDP was 84.99% White, 10.11% Black or African American, 0.25% Native American, 0.64% Asian, 0.03% Pacific Islander, 1.34% from other races, and 2.63% from two or more races. Hispanic or Latino of any race were 6.39% of the population.
There were 1,101 households, out of which 34.3% had children under the age of 18 living with them, 61.0% were married couples living together, 10.5% had a female householder with no husband present, and 24.3% were non-families. 17.3% of all households were made up of individuals, and 4.0% had someone living alone who was 65 years of age or older. The average household size was 2.76 and the average family size was 3.13.
In the CDP, the population was spread out, with 25.2% under the age of 18, 6.4% from 18 to 24, 26.4% from 25 to 44, 26.7% from 45 to 64, and 15.2% who were 65 years of age or older. The median age was 39 years. For every 100 females, there were 88.7 males. For every 100 females age 18 and over, there were 86.3 males.
The median income for a household in the CDP was $70,357, and the median income for a family was $80,863. Males had a median income of $49,886 versus $33,611 for females. The per capita income for the CDP was $27,044. About 5.8% of families and 11.5% of the population were below the poverty threshold, including 14.2% of those under age 18 and 2.3% of those age 65 or over.