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. Rochester 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 Rochester, where the median household income is $107,800.00.

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

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.

One interesting thing about the economy is that relatively large numbers of people worked from their home: 11.58% 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.

Because of many things, Rochester is a very good place for families to consider. With an enviable combination of good schools, low crime, college-educated neighbors who tend to support education because of their own experiences, and a high rate of home ownership in predominantly single-family properties, Rochester really has some of the features that families look for when choosing a good community to raise children. Is Rochester perfect? Of course not, and if you like frenetic nightlife, it will be far from your cup of tea. But overall this is a solid community, with many things to recommend it as a family-friendly place to live.

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.

The citizens of Rochester are among the most well-educated in the nation: 49.82% of adults in Rochester 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 Rochester in 2018 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.