NOTE: Gray indicates insufficient data or a suppressed estimate.
The Big Island exhibits the widest intra-island variation, with several zip codes along the southern Kona and Ka'u coast dipping into the low-to-mid 20s—likely reflecting younger military or student populations—while adjacent areas in the resort-heavy western coast trend toward the upper 50s and into the 60s. Kauai's north shore and interior zip codes skew notably older (50+), contrasting with younger pockets on O'ahu's urban core near Honolulu. Maui displays a moderate gradient, with older median ages concentrated in the resort-heavy southern and western coastal areas and younger populations in the central valley communities.
Data: U.S. Census Bureau, 2023 ACS
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