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What county is ZIP code 77357 in?

Updated · Data: U.S. Census Bureau

ZIP code 77357 (New Caney, TX) is mostly in Montgomery County (82.0% of its land), with parts in Harris County and Liberty County.

Which counties is ZIP 77357 in?

CountyShare of land areaChart
Montgomery County82.0%
Harris County10.4%
Liberty County7.6%

About 34,770 people live in this ZIP code area. Because it crosses a county line, the county depends on the street: check your address.

Is ZIP 77357 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 77357 in?
ZIP code 77357 (New Caney, TX) is mostly in Montgomery County (82.0% of its land), with parts in Harris County and Liberty County.
Is ZIP 77357 in Harris County?
Partly: about 10.4% of its land is in Harris County.
What city is ZIP 77357?
The post office name is New Caney.

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