Skip to content
Find my county

What county is ZIP code 76431 in?

Updated · Data: U.S. Census Bureau

ZIP code 76431 (Chico, TX) is mostly in Wise County (74.5% of its land), with parts in Jack County.

Which counties is ZIP 76431 in?

CountyShare of land areaChart
Wise County74.5%
Jack County25.5%

About 4,480 people live in this ZIP code area. Because it crosses a county line, the county depends on the street: check your address.

Is ZIP 76431 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 76431 in?
ZIP code 76431 (Chico, TX) is mostly in Wise County (74.5% of its land), with parts in Jack County.
Is ZIP 76431 in Jack County?
Partly: about 25.5% of its land is in Jack County.
What city is ZIP 76431?
The post office name is Chico.

Free · No signup · Private

Find your county now

Use your location, a city or a ZIP code. The check runs on your device; your location is never sent or stored.