ZIP codes in Llano County

10 ZIPs touch Llano County, Texas. The blue dashed line is the county border; orange ZIPs reach into it.

ZIP codes

cross the county line

40,771

people in these ZIPs

254

counties in TX

Most people

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Llano County ZIP list

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Questions people actually ask

How many ZIP codes are in Llano County, Texas?

10 ZIP codes reach into Llano County. 4 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Llano County has the most people?

78611 (Burnet) has about 14,560 residents, the most of any ZIP touching Llano County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Llano County and another county?

Yes. ZIP codes follow mail routes, not county lines. Rows marked with a percentage show how much of that ZIP’s land is in Llano County. For one address, pin the exact spot on the ZIP finder to see its county.

Where does this list come from?

ZIP areas and their county overlaps come from the Census Bureau’s 2020 ZIP Code Tabulation Area to county relationship file. PO Box ZIPs have no area, so each is placed in the county of the ZIP area nearest the town it serves.

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Updated 2026-11-10 · Where the data comes from