The water tower in Tower Park, Peoria Heights. It is about 200 ft (60 m) high. You can ride an elevator to the observation deck. That is a sculpture of a woodpecker a little over halfway to the top. – Roger Wollstadt, CC BY-SA 2.0 – Wikimedia Commons Peoria Heights is located in Illinois. About 5,908 people live here (as of 2020). Between 2010 and 2020, the population declined from 6,156 to 5,908. The region is at 239 meters above sea level. The area covers about 7.5 square kilometers. There are about 196 streets in Peoria Heights. The postal codes are 61616. Peoria Heights is village in eastern Peoria County, Illinois, United States. Among other things, Peoria Heights has restaurants, cafés and pharmacies.