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What county is ZIP code 78563 in?

Updated · Data: U.S. Census Bureau

ZIP code 78563 (Linn, TX) is mostly in Hidalgo County (99.2% of its land), with parts in Starr County.

Which counties is ZIP 78563 in?

CountyShare of land areaChart
Hidalgo County99.2%
Starr County0.8%

About 62 people live in this ZIP code area. Because it crosses a county line, the county depends on the street: check your address.

Is ZIP 78563 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 78563 in?
ZIP code 78563 (Linn, TX) is mostly in Hidalgo County (99.2% of its land), with parts in Starr County.
Is ZIP 78563 in Starr County?
Partly: about 0.8% of its land is in Starr County.
What city is ZIP 78563?
The post office name is Linn.

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