Niles is a medium-sized village located in the state of Illinois. With a population of 29,805 people and five associated neighborhoods, Niles is the 62nd largest community in Illinois.

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

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

One interesting thing about the economy is that relatively large numbers of people worked from their home: 8.01% of the workforce. While this number may seem small overall, as a fraction of the total workforce this is high compared to the rest of the county. 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.

Although the majority of commuting trips in the village are by private automobile, Niles is somewhat unusual for a village of its size for having a substantial number of people who use public transportation. For a lot of people, the bus helps to get to and from their jobs every morning, which benefits everyone in the Niles area by reducing both traffic and air pollution.

The citizens of Niles are among the most well-educated in the nation: 40.08% of adults in Niles have a bachelor's degree or even advanced degree, whereas the average US city has 21.84% holding at least a bachelor's degree.

The per capita income in Niles in 2022 was $39,419, which is upper middle income relative to Illinois and the nation. This equates to an annual income of $157,676 for a family of four. However, Niles contains both very wealthy and poor people as well.

Niles is an extremely ethnically-diverse village. The people who call Niles home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Niles residents report their race to be White, followed by Asian. Niles also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 12.04% of the village’s residents. Important ancestries of people in Niles include Polish, German, Irish, Italian, and Greek.

Foreign born people are also an important part of Niles's cultural character, accounting for 42.55% of the village’s population.

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