Chicago is an enormous city located in the state of Illinois. With a population of 2,664,452 people and 792 associated neighborhoods, Chicago is the largest community in Illinois. Chicago has an unusually large stock of pre-World War II architecture, making it one of the older and more historic cities.

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

Also of interest is that Chicago 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: 15.59% 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.

Chicago is one of the most attractive larger cities for people who are young, single, educated, and upwardly-mobile career starters. This makes it a good place to live for young singles in their 20s and 30s and who have undergraduate or graduate degrees and are starting their professional careers. Although Chicago is a large city, this demographic is significant enough that young professionals will find many others like themselves here, with really good opportunities for friendships, recreation, romance, and more.

One downside of living in Chicago is that it can take a long time to commute to work. In Chicago, the average commute to work is 34.71 minutes, which is quite a bit higher than the national average. On the other hand, local public transit is widely used in the city, so leaving the car at home and taking transit is often a viable alternative. In addition, it is also a pedestrian-friendly city. Many of Chicago’s neighborhoods are dense enough and have amenities close enough together that people find it feasible to get around on foot.

Chicago, like many big cities in America, has a public transportation system, but the citizens of Chicago are lucky because theirs is one of the most extensive and widely used. Many commuters choose to leave their cars at home and instead use the bus to get to and from work. In fact, for some people it is feasible to forgo car ownership entirely, avoiding the cost and headache of driving in heavy traffic. The benefits include reduced air pollution and load on the road network.

The citizens of Chicago are among the most well-educated in the nation: 42.43% of adults in Chicago 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 Chicago in 2022 was $45,840, which is wealthy relative to Illinois and the nation. This equates to an annual income of $183,360 for a family of four. However, Chicago contains both very wealthy and poor people as well.

Chicago is an extremely ethnically-diverse city. The people who call Chicago home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Chicago residents report their race to be White, followed by Black or African-American. Chicago also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 28.95% of the city’s residents. Important ancestries of people in Chicago include German, Irish, Polish, Italian, and English.

Foreign born people are also an important part of Chicago's cultural character, accounting for 20.24% of the city’s population.

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