There are 5 zip codes in Blanco County, Texas. The most populated is 78665, located in Sandy. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
7866561,640Sandy
786066,942Blanco
786363,582Johnson City
78663599Round Mountain
7863573Hye
showing: 5 rows

Zip Codes in Blanco County, Texas by Population (2024)