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What county is ZIP code 77339 in?

Updated · Data: U.S. Census Bureau

ZIP code 77339 (Kingwood, TX) is mostly in Harris County (75.9% of its land), with parts in Montgomery County.

Which counties is ZIP 77339 in?

CountyShare of land areaChart
Harris County75.9%
Montgomery County24.1%

About 43,364 people live in this ZIP code area. Because it crosses a county line, the county depends on the street: check your address.

Is ZIP 77339 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 77339 in?
ZIP code 77339 (Kingwood, TX) is mostly in Harris County (75.9% of its land), with parts in Montgomery County.
Is ZIP 77339 in Montgomery County?
Partly: about 24.1% of its land is in Montgomery County.
What city is ZIP 77339?
The post office name is Kingwood.

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