Peru is a somewhat small city located in the state of Illinois. With a population of 9,793 people and three associated neighborhoods, Peru is the 224th largest community in Illinois.

Residents of the city have the good fortune of having one of the shortest daily commutes compared to the rest of the country. On average, they spend only 17.98 minutes getting to work every day.

The education level of Peru citizens is a little higher than the average for US cities and towns: 21.30% of adults in Peru have at least a bachelor's degree.

The per capita income in Peru in 2022 was $40,131, which is upper middle income relative to Illinois and the nation. This equates to an annual income of $160,524 for a family of four. However, Peru contains both very wealthy and poor people as well.

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

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