Sycamore is a medium-sized city located in the state of Illinois. With a population of 18,968 people and five associated neighborhoods, Sycamore is the 136th largest community in Illinois. There's nothing like the smell of a brand new house, and in Sycamore, you'll find that a large proportion of houses were recently built. New growth in residential real estate is an indication that people are choosing to move to Sycamore, and putting down their money on brand new construction. Sycamore’s real estate is, on average, some of the newest in the nation. Sycamore does seem to be experiencing an influx of affluent people, because the median household income is $84,120.00.

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.

Also of interest is that Sycamore 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: 13.36% 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.

The citizens of Sycamore are among the most well-educated in the nation: 45.99% 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 $43,190, which is upper middle income relative to Illinois and the nation. This equates to an annual income of $172,760 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. Sycamore also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 11.27% of the city’s residents. Important ancestries of people in Sycamore include German, Irish, English, Italian, and Polish.

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