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ZIP codes in Travis County

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

96

ZIP codes

26

cross the county line

1,910,510

people in these ZIPs

254

counties in TX

Most people

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Travis County ZIP list

More counties in Texas

All 254 counties in Texas

Questions people actually ask

How many ZIP codes are in Travis County, Texas?

96 ZIP codes reach into Travis County, including 33 PO Box or single-address ZIPs placed by the town they serve. 26 of them are only partly in the county and also cover a neighboring county.

Which ZIP code in Travis County has the most people?

78660 (Pflugerville) has about 124,834 residents, the most of any ZIP touching Travis County, in the Census Bureau’s ACS 2020–2024 estimates.

Can a ZIP code be in Travis 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 Travis 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