NOTE: Gray indicates insufficient data or a suppressed estimate.
Rural zip codes across southern and western Iowa consistently exhibit higher uninsured rates, frequently exceeding 10–15%, with the darkest concentrations forming a broad swath through the south-central and southwestern portions of the state. Urban cores and their surrounding suburbs—particularly in the Des Moines, Cedar Rapids, Iowa City, and Waterloo–Cedar Falls metro areas—display notably lower uninsured percentages, generally falling below 5%, appearing as lighter gray clusters against the darker rural backdrop. A few isolated zip codes in the southeast corner near Burlington and in north-central Iowa stand out with elevated rates approaching 20–30%, suggesting localized pockets of limited insurance access that warrant further investigation.
Data: U.S. Census Bureau, 2023 ACS
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