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

NOTE: Gray indicates insufficient data or a suppressed estimate.

Most of Pennsylvania's zip codes report high school graduation rates between 85% and 95%, with the highest rates (95–100%) concentrated in suburban clusters around Pittsburgh in the southwest and in affluent suburban areas ringing Philadelphia in the southeast. Notable low-graduation-rate pockets appear in south-central Pennsylvania's Lancaster County area—likely reflecting Amish and Plain community populations—as well as in parts of urban Philadelphia and a few isolated zip codes in the north-central Appalachian region. The central ridge-and-valley corridor running diagonally across the state displays moderately lower rates (70–85%) compared to surrounding areas, suggesting persistent educational attainment gaps in these more rural, mountainous communities.

Data: U.S. Census Bureau, 2023 ACS

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