Janesville is a larger medium-sized city located in the state of Wisconsin. With a population of 65,911 people and 18 associated neighborhoods, Janesville is the tenth largest community in Wisconsin.

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

The percentage of people in Janesville who are college-educated is somewhat higher than the average US community of 21.84%: 26.03% of adults in Janesville have at least a bachelor's degree.

The per capita income in Janesville in 2022 was $35,135, which is middle income relative to Wisconsin, and upper middle income relative to the rest of the US. This equates to an annual income of $140,540 for a family of four. However, Janesville contains both very wealthy and poor people as well.

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

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