NOTE: Gray indicates insufficient data or a suppressed estimate.
Maine's median age landscape skews notably older across the state, with the vast majority of zip codes falling in the 45–60+ range, reflecting its status as one of the oldest states by median age in the nation. The interior and northern regions—particularly the sparsely populated areas of Aroostook County and the western mountains—tend toward the highest median ages (55–60+), rendered in bright yellow, while pockets of relatively younger populations cluster around the Portland metro area, Bangor, and college towns like Orono, where darker teal and green hues indicate median ages in the mid-20s to mid-30s. The southern coastal corridor displays a mixed pattern of moderate-to-high median ages, with isolated younger zip codes likely corresponding to small urban centers interspersed among aging rural and suburban communities.
Data: U.S. Census Bureau, 2023 ACS
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