Port Jefferson is a somewhat small coastal village (i.e. on the ocean, a bay, or inlet) located in the state of New York. With a population of 8,059 people and two associated neighborhoods, Port Jefferson is the 219th largest community in New York.

Port Jefferson home prices are not only among the most expensive in New York, but Port Jefferson real estate also consistently ranks among the most expensive in America.

A relatively large number of people in Port Jefferson telecommute to their jobs. Overall, about 9.99% of the workforce works from home. While this may seem like a small number, as a fraction of the total workforce it ranks among the highest in the country. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

Port Jefferson is also nautical, which means that parts of it are somewhat historic and touch the ocean or tidal bodies of water, such as inlets and bays. Such areas are often places that visitors and locals go for waterfront activities or taking in the scenery.

Even though Port Jefferson is a smaller village, it has many people who hop on public transportation – mostly the train for their daily commute to work. Typically, these people are commuting to good jobs in the surrounding cities.

If knowledge is power, Port Jefferson is a pretty powerful place. 64.12% of the adults in Port Jefferson have earned a 4-year college degree, masters degree, MD, law degree, or even PhD. Compare that to the national average of 21.84% for all cities and towns.

The per capita income in Port Jefferson in 2018 was $68,127, which is wealthy relative to New York and the nation. This equates to an annual income of $272,508 for a family of four.

Port Jefferson is a very ethnically-diverse village. The people who call Port Jefferson home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Port Jefferson residents report their race to be White, followed by Asian. Port Jefferson also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 10.31% of the village’s residents. Important ancestries of people in Port Jefferson include Irish, Italian, German, English, and Polish.

Foreign born people are also an important part of Port Jefferson's cultural character, accounting for 15.61% of the village’s population.

The most common language spoken in Port Jefferson is English. Other important languages spoken here include Spanish and Chinese.