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What county is ZIP code 79521 in?

Updated · Data: U.S. Census Bureau

ZIP code 79521 (Haskell, TX) is mostly in Haskell County (93.5% of its land), with parts in Throckmorton County.

Which counties is ZIP 79521 in?

CountyShare of land areaChart
Haskell County93.5%
Throckmorton County6.5%

About 3,470 people live in this ZIP code area. Because it crosses a county line, the county depends on the street: check your address.

Is ZIP 79521 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 79521 in?
ZIP code 79521 (Haskell, TX) is mostly in Haskell County (93.5% of its land), with parts in Throckmorton County.
Is ZIP 79521 in Throckmorton County?
Partly: about 6.5% of its land is in Throckmorton County.
What city is ZIP 79521?
The post office name is Haskell.

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