Sycamore is a medium-sized city located in the state of Illinois. With a population of 18,652 people and five associated neighborhoods, Sycamore is the 136th largest community in Illinois. Sycamore has seen a significant amount of newer housing growth in recent years. Quite often, new home construction is the result of new residents moving in who are middle class or wealthier, attracted by jobs, a healthy local economy, or other amenities as they leave nearby or far away areas for greener pastures. This seems to be the case in Sycamore, where the median household income is $80,785.00.

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

A relatively large number of people in Sycamore telecommute to their jobs. Overall, about 9.33% 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.

The citizens of Sycamore are among the most well-educated in the nation: 44.75% of adults in Sycamore 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 Sycamore in 2022 was $39,364, which is upper middle income relative to Illinois and the nation. This equates to an annual income of $157,456 for a family of four. However, Sycamore contains both very wealthy and poor people as well.

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

The most common language spoken in Sycamore is English. Other important languages spoken here include Spanish and German/Yiddish.