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What county is ZIP code 75478 in?

Updated · Data: U.S. Census Bureau

ZIP code 75478 (Saltillo, TX) is mostly in Hopkins County (91.6% of its land), with parts in Franklin County.

Which counties is ZIP 75478 in?

CountyShare of land areaChart
Hopkins County91.6%
Franklin County8.4%

About 855 people live in this ZIP code area. Because it crosses a county line, the county depends on the street: check your address.

Is ZIP 75478 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 75478 in?
ZIP code 75478 (Saltillo, TX) is mostly in Hopkins County (91.6% of its land), with parts in Franklin County.
Is ZIP 75478 in Franklin County?
Partly: about 8.4% of its land is in Franklin County.
What city is ZIP 75478?
The post office name is Saltillo.

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