Romeoville is a medium-sized village located in the state of Illinois. With a population of 40,117 people and ten associated neighborhoods, Romeoville is the 41st largest community in Illinois. Much of the housing stock in Romeoville was built relatively recently. The construction of new real estate can often be taken as an indication that the local Romeoville economy is robust, and that jobs or other amenities are attracting an influx of new residents. This seems to be the case in Romeoville, where the median household income is $96,409.00.

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

Telecommuters are a relatively large percentage of the workforce: 7.73% 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.

In Romeoville, however, the average commute to work is quite long. On average, people spend 31.21 minutes each day getting to work, which is significantly higher than the national average.

The education level of Romeoville citizens is a little higher than the average for US cities and towns: 22.31% of adults in Romeoville have at least a bachelor's degree.

The per capita income in Romeoville in 2022 was $32,917, which is middle income relative to Illinois and the nation. This equates to an annual income of $131,668 for a family of four. However, Romeoville contains both very wealthy and poor people as well.

Romeoville is an extremely ethnically-diverse village. The people who call Romeoville home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Romeoville residents report their race to be White, followed by Black or African-American. Romeoville also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 35.20% of the village’s residents. Important ancestries of people in Romeoville include German, Polish, Irish, Italian, and English.

Foreign born people are also an important part of Romeoville's cultural character, accounting for 21.14% of the village’s population.

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