Rochester is a very small village located in the state of Illinois. With a population of 3,856 people and two associated neighborhoods, Rochester is the 407th largest community in Illinois. There's nothing like the smell of a brand new house, and in Rochester, 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 Rochester, and putting down their money on brand new construction. Rochester’s real estate is, on average, some of the newest in the nation. Rochester does seem to be experiencing an influx of affluent people, because the median household income is $107,800.00.

Also of interest is that Rochester 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: 11.58% 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.

Rochester is a good choice for families with children because of several factors. Many other families with children live here, making it a place where both parents and children are more likely to develop social ties with other families. The village’s good public school district and large population of college-educated adults provide an environment conducive to academic success. Many people own their own single-family homes, providing areas for children to play and stability in the community. Finally, Rochester’s overall crime rate is lower than average for the country.

Rochester is a small village, and as such doesn't have a public transit system that people use to get to and from their jobs every day.

Rochester is one of the most well-educated cities in the nation. 49.82% of adults in Rochester have at least a bachelor's degree. Compare that to the average community in America, which has just 21.84% with a bachelor's degree or higher.

The per capita income in Rochester in 2022 was $45,025, which is wealthy relative to Illinois and the nation. This equates to an annual income of $180,100 for a family of four.

The people who call Rochester home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Rochester residents report their race to be White, followed by Asian. Important ancestries of people in Rochester include German, English, Irish, Italian, and Polish.

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