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What county is New Caney, TX in?

Updated · Data: U.S. Census Bureau

New Caney, TX is mostly in Montgomery County, and New Caney addresses also reach Harris County and Liberty County. New Caney is a mailing address name, not a city, so the county depends on your street.

New Caney at a glance

Residents34,770in the 1 ZIP code area named New Caney
ZIP codes177357
Counties3Montgomery, Harris, Liberty
County seatConroeof Montgomery County
Time zoneCentralAmerica/Chicago

Which counties are New Caney ZIP codes in?

Residents are per ZIP code area; the county split of each ZIP is by share of its land, because the Census Bureau does not publish ZIP residents by county in the file we use.

ZIPResidentsCounty (land share)City or CDP at its center
7735734,770Montgomery County 82%, Harris County 10%, Liberty County 8%No city or CDP

The table shows how ZIP 77357's land splits. Near a county line, check your address: the lookup runs in your browser and tells you how far you are from the line.

Is New Caney a city?

No. New Caney is the post office name for ZIP code 77357. It is not an incorporated city and not a census-designated place, so the Census Bureau publishes no boundary or population for New Caney itself; the closest thing is the ZIP code areas named New Caney.

That is why a search for New Caney on our city lookup finds nothing: it only knows Census places. Use the ZIP code lookup or your location instead. Why ZIP codes and cities do not line up.

Cities and towns near New Caney

  • Woodbranch: 1.7 mi from the center of the New Caney ZIP codes, Montgomery County
  • Roman Forest: 2.4 mi from the center of the New Caney ZIP codes, Montgomery County
  • Patton Village: 2.9 mi from the center of the New Caney ZIP codes, Montgomery County
  • Splendora: 5.1 mi from the center of the New Caney ZIP codes, Montgomery County
  • Plum Grove: 5.9 mi from the center of the New Caney ZIP codes, Liberty County
  • Porter Heights: 8.5 mi from the center of the New Caney ZIP codes, Montgomery County

About Montgomery County

County seat: Conroe. FIPS code 48339. Population 654,722. All Montgomery County facts.

Sources: Census 2020 ZCTA-county relationship file (county land shares); ACS 2019-2023 5-year (ZIP area residents); GeoNames, CC BY 4.0 (post office names); Census TIGER/Line 2024 (place limits). Data as of November 1, 2026. Not affiliated with USPS or any government agency.

FAQ

Frequently asked questions

What county is New Caney, TX in?
New Caney, TX is mostly in Montgomery County, and New Caney addresses also reach Harris County and Liberty County. New Caney is a mailing address name, not a city, so the county depends on your street.
Is New Caney in more than one county?
Yes. New Caney ZIP codes reach 3 counties: Montgomery County, Harris County, Liberty County.
Is New Caney, TX a city?
No. New Caney is a post office name for ZIP code 77357; it is not an incorporated city or a census-designated place.
What ZIP codes are in New Caney, TX?
77357, with about 34,770 residents in total.
How do I know which county my New Caney address is in?
Use the address lookup at your home, or check your appraisal district record.

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