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What county is ZIP code 78606 in?

Updated · Data: U.S. Census Bureau

ZIP code 78606 (Blanco, TX) is mostly in Blanco County (75.2% of its land), with parts in Kendall County and Comal County.

Which counties is ZIP 78606 in?

CountyShare of land areaChart
Blanco County75.2%
Kendall County21.3%
Comal County3.5%

About 6,977 people live in this ZIP code area. Because it crosses a county line, the county depends on the street: check your address.

Is ZIP 78606 a Census ZIP code area?

Yes. A ZIP Code Tabulation Area (ZCTA) is the Census version of a ZIP code; its edges can differ from USPS delivery routes (ZIP code vs ZCTA). Look up another ZIP on the ZIP code to county lookup.

Sources: Census 2020 ZCTA-county relationship file; Gazetteer 2024; GeoNames (CC BY 4.0, post office name); ACS 2019-2023 5-year. Data as of November 1, 2026. Not affiliated with USPS or any government agency.

FAQ

Frequently asked questions

What county is ZIP code 78606 in?
ZIP code 78606 (Blanco, TX) is mostly in Blanco County (75.2% of its land), with parts in Kendall County and Comal County.
Is ZIP 78606 in Kendall County?
Partly: about 21.3% of its land is in Kendall County.
What city is ZIP 78606?
The post office name is Blanco.

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