Westchester is a medium-sized village located in the state of Illinois. With a population of 16,094 people and five associated neighborhoods, Westchester is the 151st largest community in Illinois.

Westchester real estate is some of the most expensive in Illinois, although Westchester house values don't compare to the most expensive real estate in the U.S.

Also of interest is that Westchester has more people living here who work in computers and math than 95% of the places in the US.

Telecommuters are a relatively large percentage of the workforce: 14.32% of people work from home. While this number may seem small overall, as a fraction of the total workforce it is high relative to the nation. 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.

In addition, Westchester is home to many people who could be described as "urban sophisticates". Urban sophisticates are educated, wealthy, executives and professionals, who have urbane tastes in books, food, and travel, whether they actually live in a big city, or choose to reside in a small town. In big or medium-sized cities, urban sophisticates tend to frequent art institutions such as opera, symphonies, ballet, live theatre, and museums.

Westchester is a good choice for families with children because of several factors. Many other families with children live here, making it a place where both parents and children are more likely to develop social ties with other families. The village’s good public school district and large population of college-educated adults provide an environment conducive to academic success. Many people own their own single-family homes, providing areas for children to play and stability in the community. Finally, Westchester’s overall crime rate is lower than average for the country.

In Westchester, a lot of people use the train to get to work every day though Westchester is a relatively small village. Those that ride the train are primarily traveling out of town to good jobs in other cities.

The education level of Westchester ranks among the highest in the nation. Of the 25-and-older adult population in Westchester, 45.73% have at least a bachelor's degree. The typical US community has just 21.84% of its adults holding a bachelor's degree or graduate degree.

The per capita income in Westchester in 2022 was $53,223, which is wealthy relative to Illinois and the nation. This equates to an annual income of $212,892 for a family of four.

Westchester is an extremely ethnically-diverse village. The people who call Westchester home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Westchester residents report their race to be White, followed by Black or African-American. Westchester also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 21.29% of the village’s residents. Important ancestries of people in Westchester include Irish, Italian, German, Polish, and Czech.

The most common language spoken in Westchester is English. Other important languages spoken here include Spanish and Tagalog.