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What county is ZIP code 76673 in?

Updated · Data: U.S. Census Bureau

ZIP code 76673 (Mount Calm, TX) is mostly in Hill County (61.4% of its land), with parts in Limestone County and McLennan County.

Which counties is ZIP 76673 in?

CountyShare of land areaChart
Hill County61.4%
Limestone County37.7%
McLennan County0.9%

About 1,178 people live in this ZIP code area. Because it crosses a county line, the county depends on the street: check your address.

Is ZIP 76673 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 76673 in?
ZIP code 76673 (Mount Calm, TX) is mostly in Hill County (61.4% of its land), with parts in Limestone County and McLennan County.
Is ZIP 76673 in Limestone County?
Partly: about 37.7% of its land is in Limestone County.
What city is ZIP 76673?
The post office name is Mount Calm.

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