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What county is ZIP code 77434 in?

Updated · Data: U.S. Census Bureau

ZIP code 77434 (Eagle Lake, TX) is mostly in Colorado County (65.7% of its land), with parts in Wharton County.

Which counties is ZIP 77434 in?

CountyShare of land areaChart
Colorado County65.7%
Wharton County34.3%

About 4,037 people live in this ZIP code area. Because it crosses a county line, the county depends on the street: check your address.

Is ZIP 77434 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 77434 in?
ZIP code 77434 (Eagle Lake, TX) is mostly in Colorado County (65.7% of its land), with parts in Wharton County.
Is ZIP 77434 in Wharton County?
Partly: about 34.3% of its land is in Wharton County.
What city is ZIP 77434?
The post office name is Eagle Lake.

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