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What county is ZIP code 78058 in?

Updated · Data: U.S. Census Bureau

ZIP code 78058 (Mountain Home, TX) is mostly in Kerr County (78.5% of its land), with parts in Real County and Gillespie County.

Which counties is ZIP 78058 in?

CountyShare of land areaChart
Kerr County78.5%
Real County18.0%
Gillespie County3.5%

About 948 people live in this ZIP code area. Because it crosses a county line, the county depends on the street: check your address.

Is ZIP 78058 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 78058 in?
ZIP code 78058 (Mountain Home, TX) is mostly in Kerr County (78.5% of its land), with parts in Real County and Gillespie County.
Is ZIP 78058 in Real County?
Partly: about 18.0% of its land is in Real County.
What city is ZIP 78058?
The post office name is Mountain Home.

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