Population Non-Hispanic Asian % by Zip Code (ZCTA5) — Illinois

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The Chicago metropolitan area in northeastern Illinois contains the highest concentrations of Non-Hispanic Asian residents, with several zip codes in the northern and western suburbs—particularly around Naperville, Schaumburg, and Skokie—reaching 25% to over 50%. A secondary but much smaller cluster appears in the Champaign-Urbana area in east-central Illinois, likely driven by the University of Illinois, where several zip codes reach approximately 10-15%. The vast majority of downstate Illinois zip codes fall below 2%, creating a stark urban-rural demographic divide across the state.

Data: U.S. Census Bureau, 2023 ACS

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