Quincy is a medium-sized city located in the state of Illinois. With a population of 38,803 people and 14 associated neighborhoods, Quincy is the 45th largest community in Illinois.

Telecommuters are a relatively large percentage of the workforce: 7.26% 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.

Residents of the city have the good fortune of having one of the shortest daily commutes compared to the rest of the country. On average, they spend only 14.97 minutes getting to work every day.

The percentage of people in Quincy who are college-educated is somewhat higher than the average US community of 21.84%: 26.59% of adults in Quincy have at least a bachelor's degree.

The per capita income in Quincy in 2022 was $34,819, which is middle income relative to Illinois and the nation. This equates to an annual income of $139,276 for a family of four. However, Quincy contains both very wealthy and poor people as well.

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

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