Kewanee is located in Henry County. About 12,509 people live here (as of 2020). Between 2010 and 2020, the population declined from 12,944 to 12,509. The region is at 244 meters above sea level. The area covers about 17.4 square kilometers. There are about 483 streets in Kewanee. The region was founded in 1854. The postal codes are 61443. The dialing code is 309. Kewanee is city in Henry County, Illinois, United States. Among other things, Kewanee has public Transport, schools and pharmacies. More information at
cityofkewanee.com.