There are 9 zip codes in San Patricio County, Texas. The most populated is 78374, located in Portland. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
7837420,037Portland
7833611,774Aransas Pass
7836210,737Ingleside
783879,148Sinton
783688,989Mathis
783905,737Taft
783705,350Odem
783592,122Gregory
78352235Edroy

Zip Codes in San Patricio County, Texas by Population (2024)