Skip to content
Find my county

What county is ZIP code 78940 in?

Updated · Data: U.S. Census Bureau

ZIP code 78940 (Fayetteville, TX) is mostly in Fayette County (75.5% of its land), with parts in Colorado County and Austin County.

Which counties is ZIP 78940 in?

CountyShare of land areaChart
Fayette County75.5%
Colorado County16.6%
Austin County7.9%

About 2,284 people live in this ZIP code area. Because it crosses a county line, the county depends on the street: check your address.

Is ZIP 78940 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 78940 in?
ZIP code 78940 (Fayetteville, TX) is mostly in Fayette County (75.5% of its land), with parts in Colorado County and Austin County.
Is ZIP 78940 in Colorado County?
Partly: about 16.6% of its land is in Colorado County.
What city is ZIP 78940?
The post office name is Fayetteville.

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.