NOTE: Gray indicates insufficient data or a suppressed estimate.
Most zip codes across interior and northern Alaska display high U.S. citizenship rates at or near 100%, with prominent yellow shading indicating near-universal citizenship among the adult population. A notable cluster of lower citizenship rates, dropping to approximately 75–80%, appears in the Kodiak Island and southeastern Alaska panhandle regions, likely reflecting immigrant populations tied to fishing and seafood processing industries. The Anchorage metropolitan area and surrounding south-central zip codes exhibit moderate variation, with some areas dipping into the 85–90% range, contrasting with the uniformly high rates seen in remote rural and western Alaska communities.
Data: U.S. Census Bureau, 2023 ACS
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