U.S. Citizens (% of Population Over 18) by Zip Code (ZCTA5) — Phoenix Metro

NOTE: Gray indicates insufficient data or a suppressed estimate.

Zip codes in central and south Phoenix, particularly around the Phoenix core and areas south of Glendale, exhibit the lowest U.S. citizenship rates among adults, dropping to approximately 75–80%, forming a distinct cluster of dark-shaded zones. In contrast, the northern and northeastern portions of the metro—especially the outer suburbs and areas north of Scottsdale—consistently reach 95–100% citizenship rates, as do many of the peripheral zip codes on the metro's western and southeastern edges. The Tempe and Mesa areas display moderate variability, with pockets of lower citizenship rates interspersed among higher-rate neighbors, suggesting localized demographic diversity within these mid-metro communities.

Data: U.S. Census Bureau, 2023 ACS

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