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

NOTE: Gray indicates insufficient data or a suppressed estimate.

The vast majority of Louisiana zip codes report U.S. citizenship rates above 95% among the adult population, with near-universal citizenship across the northern and central rural parishes. Notable exceptions cluster around the Baton Rouge metro area, where several zip codes dip below 80%, and in the greater New Orleans/Jefferson Parish region in the southeast, which displays a mix of lower-citizenship zip codes likely reflecting immigrant-heavy communities. Scattered pockets of moderately lower citizenship rates also appear in the Acadiana region west of Baton Rouge, consistent with areas known for larger Hispanic and Vietnamese immigrant populations.

Data: U.S. Census Bureau, 2023 ACS

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