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What county is ZIP code 79039 in?

Updated · Data: U.S. Census Bureau

ZIP code 79039 (Groom, TX) is mostly in Carson County (52.4% of its land), with parts in Gray County and Armstrong County and Donley County.

Which counties is ZIP 79039 in?

CountyShare of land areaChart
Carson County52.4%
Gray County35.2%
Armstrong County7.3%
Donley County5.1%

About 686 people live in this ZIP code area. Because it crosses a county line, the county depends on the street: check your address.

Is ZIP 79039 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 79039 in?
ZIP code 79039 (Groom, TX) is mostly in Carson County (52.4% of its land), with parts in Gray County and Armstrong County and Donley County.
Is ZIP 79039 in Gray County?
Partly: about 35.2% of its land is in Gray County.
What city is ZIP 79039?
The post office name is Groom.

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