NOTE: Gray indicates insufficient data or a suppressed estimate.
Southern coastal Maine, particularly the Portland metro area and midcoast communities, exhibits the highest concentrations of bachelor's degree attainment, with several zip codes exceeding 50%, while northern and interior regions—especially Aroostook County and parts of western Maine—generally fall below 20%. A notable cluster of high educational attainment also appears around the Orono area in central-eastern Maine, likely reflecting the influence of the University of Maine. The sharpest contrasts emerge along the coast-to-interior gradient in southern Maine, where affluent coastal towns with rates above 40% sit adjacent to inland working-class communities registering below 15%.
Data: U.S. Census Bureau, 2023 ACS
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