There are 4 zip codes in Blanco County, Texas. The most populated is 78606, located in Blanco. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
City
Population
78606Blanco6,942
78636Johnson City3,582
78663Round Mountain599
78635Hye73

Blanco County, Texas Zip Codes by Population (2024)