NOTE: Gray indicates insufficient data or a suppressed estimate.
Higher concentrations of bachelor's degree attainment cluster around Iowa's major metropolitan areas, with Des Moines (central), Iowa City/Cedar Rapids (east-central), and Ames (central) displaying zip codes exceeding 40-50%, likely driven by the presence of major universities and white-collar employment centers. Rural zip codes across northern and western Iowa consistently fall below 15-20%, creating a stark urban-rural educational divide that is among the most pronounced spatial patterns in the state. Notable secondary clusters of moderate attainment (25-35%) appear around smaller college towns and regional centers such as Cedar Falls/Waterloo, Dubuque, and the Quad Cities area along the eastern border.
Data: U.S. Census Bureau, 2023 ACS
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