East Peoria is a city in Tazewell County, Illinois, United States. The population was 23,402 at the 2010 census. East Peoria is part of the Peoria, Illinois Metropolitan Statistical Area, located across the Illinois River from downtown Peoria. It is home to many Caterpillar Inc. facilities.The city is also the site of the home campus of Illinois Central College, a regional community college and the Par-A-Dice Hotel and Casino. The main commercial area of East Peoria is just across the river from downtown Peoria. In concert with the renovation of old Caterpillar factories, the development of the downtown Peoria Riverfront Museum and Caterpillar Visitors Center, and the renovation of Interstate 74 and of the area's bridges, East Peoria's downtown and urban area have developed as well. In 2011 and 2012, a major renovation of Washington Street and other downtown and city streets took place, and a full-service Holiday Inn Center featuring a high-level restaurant has been added.