% of Households with Broadband Internet, by Zip Code (ZCTA5) — Chicago Metro

NOTE: Gray indicates insufficient data or a suppressed estimate.

Broadband internet adoption rates across the Chicago metro area reveal a stark urban-suburban divide, with the highest penetration (90–100%) concentrated in the western and northwestern suburbs such as Naperville, Schaumburg, and Palatine, while the south side of Chicago—particularly around Englewood—and the Gary/Hammond corridor in northwest Indiana fall notably below 70%. A cluster of lower-connectivity zip codes also appears along Chicago's west side near Cicero, contrasting sharply with the affluent North Shore communities near Evanston that maintain rates above 85%. The southern exurban fringe around Joliet and areas south of Bolingbrook show moderate-to-high adoption in the 80–90% range, suggesting that income and infrastructure investment rather than simple urban density are the primary drivers of the digital divide in this metro.

Data: U.S. Census Bureau, 2023 ACS

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