Peru Illinois | Vibepedia

Peru, Illinois, is a city located in LaSalle and Bureau counties, with a rich history dating back to the 19th century. As of the 2020 census, the population was 9,896, making it a significant part of the Ottawa, IL Micropolitan Statistical Area. Peru, along with its twin city LaSalle, forms the core of the Illinois Valley, an area known for its natural beauty and industrial heritage.