Peoria Heights is a village in Peoria County, Illinois, United States. The population was 6,635 at the 2000 census. Peoria Heights is a suburb of Peoria and is surrounded by the city except for its eastern boundary on Peoria Lake. It is part of the Peoria-Pekin MSA. Peoria Heights apartments for rent comparison page shows most up to date rent information on Peoria Heights apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.