article: Champaign, Illinois
links: North American Numbering Plan 2020 United States Census Champaign County, Illinois Geographic Names Information System Champaign County, Ohio United States Census Bureau U.S. state Illinois Area codes 217 and 447 Central Time Zone List of cities in Illinois ZIP Code Municipal corporation Central Daylight Time Federal Information Processing Standards United States List of counties in Illinois University of Illinois Urbana-Champaign