Champaign–Urbana metropolitan area
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The Champaign–Urbana metropolitan area, also known as Champaign–Urbana and Urbana–Champaign as well as Chambana (colloquially), is a metropolitan area in east-central Illinois. It is the 191st largest metropolitan area in the U.S. It is composed of three counties, Champaign, Ford, and Piatt. The Office of Management and Budget has designated the three-county Champaign–Urbana area as one of its metropolitan statistical areas (the Champaign–Urbana, IL MSA), which are used for statistical purposes by the Census Bureau and other agencies.