Brookhaven is a somewhat small borough located in the state of Pennsylvania. With a population of 8,284 people and three associated neighborhoods, Brookhaven is the 146th largest community in Pennsylvania.

Brookhaven is a small borough, and as such doesn't have a public transit system that people use to get to and from their jobs every day.

The education level of Brookhaven citizens is substantially higher than the typical US community, as 32.09% of adults in Brookhaven have at least a bachelor's degree.

The per capita income in Brookhaven in 2022 was $44,062, which is wealthy relative to Pennsylvania, and upper middle income relative to the rest of the US. This equates to an annual income of $176,248 for a family of four.

Brookhaven is a somewhat ethnically-diverse borough. The people who call Brookhaven home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Brookhaven residents report their race to be White, followed by Black or African-American. Important ancestries of people in Brookhaven include Irish, Italian, German, English, and Polish.

The most common language spoken in Brookhaven is English. Other important languages spoken here include Arabic and French.