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What county is ZIP code 77990 in?

Updated · Data: U.S. Census Bureau

ZIP code 77990 (Tivoli, TX) is mostly in Refugio County (79.1% of its land), with parts in Calhoun County.

Which counties is ZIP 77990 in?

CountyShare of land areaChart
Refugio County79.1%
Calhoun County20.9%

About 783 people live in this ZIP code area. Because it crosses a county line, the county depends on the street: check your address.

Is ZIP 77990 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 77990 in?
ZIP code 77990 (Tivoli, TX) is mostly in Refugio County (79.1% of its land), with parts in Calhoun County.
Is ZIP 77990 in Calhoun County?
Partly: about 20.9% of its land is in Calhoun County.
What city is ZIP 77990?
The post office name is Tivoli.

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