High School Graduate (% of Over 25) by Zip Code (ZCTA5) — Ohio

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Ohio's high school graduation rates for adults over 25 exhibit a stark urban-rural divide, with the lowest rates (below 75%) concentrated in the core zip codes of major metropolitan areas—most prominently Cleveland's inner city in the northeast and Columbus in the center of the state, along with pockets in Cincinnati, Dayton, and Youngstown. Suburban rings surrounding these cities display notably higher rates, often exceeding 95%, creating sharp gradients over short distances that underscore deep educational attainment disparities within metro regions. Rural Appalachian counties in the southeastern portion of the state also show moderately depressed rates compared to the northwestern and western agricultural regions, which generally maintain graduation rates in the 88–95% range.

Data: U.S. Census Bureau, 2023 ACS

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