Peru, Illinois

Peru
City
4th Street Looking East in Downtown Peru
Flag Seal
Location of Peru in LaSalle County, Illinois.
Location of Illinois in the United States
Coordinates: 41°20′25″N 89°07′03″W / 41.34028°N 89.11750°W / 41.34028; -89.11750[1]
Country	United States
State	Illinois
County	Bureau, LaSalle
Townships	Peru, Dimmick, Hall
Government
• Mayor	Ken Kolowski
Area [2]
• Total	10.12 sq mi (26.21 km2)
• Land	9.99 sq mi (25.86 km2)
• Water	0.13 sq mi (0.35 km2)
Elevation [1]	640 ft (200 m)
Population  (2020)
• Total	9,896
• Density	977.87/sq mi (377.57/km2)
Time zone	UTC−6 (CST)
• Summer (DST)	UTC−5 (CDT)
ZIP Code(s)	61354
Area code	815
FIPS code	17-59234
GNIS feature ID	2396189[1]
Website	City of Peru official website

Peru is a city in LaSalle and Bureau counties, Illinois, United States. The population was 9,896 at the 2020 census, down from 10,295 at the 2010 census. It is part of the Ottawa, IL Micropolitan Statistical Area. Peru and its twin city, LaSalle, make up the core of Illinois Valley.