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

NOTE: Gray indicates insufficient data or a suppressed estimate.

The Oklahoma Panhandle and western border regions exhibit notably lower U.S. citizenship rates among the adult population, with several zip codes in the 75–85% range, likely reflecting concentrated immigrant agricultural labor communities in areas such as Guymon and surrounding meatpacking towns. The Oklahoma City metro area displays internal variation, with certain central zip codes dipping below 85% while surrounding suburban areas maintain rates above 95%. Eastern Oklahoma is overwhelmingly yellow, indicating near-universal citizenship among adults, with the notable exception of a cluster near Tulsa's core and a few isolated zip codes in the southeastern corner near the Arkansas border.

Data: U.S. Census Bureau, 2023 ACS

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