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What county is ZIP code 78026 in?

Updated · Data: U.S. Census Bureau

ZIP code 78026 (Jourdanton, TX) is mostly in Atascosa County (72.4% of its land), with parts in McMullen County.

Which counties is ZIP 78026 in?

CountyShare of land areaChart
Atascosa County72.4%
McMullen County27.6%

About 6,438 people live in this ZIP code area. Because it crosses a county line, the county depends on the street: check your address.

Is ZIP 78026 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 78026 in?
ZIP code 78026 (Jourdanton, TX) is mostly in Atascosa County (72.4% of its land), with parts in McMullen County.
Is ZIP 78026 in McMullen County?
Partly: about 27.6% of its land is in McMullen County.
What city is ZIP 78026?
The post office name is Jourdanton.

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