What county is Porter, TX in?

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

Porter at a glance

Which counties are Porter 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.

The table shows how ZIP 77365'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 Porter a city?

No. Porter is the post office name for ZIP code 77365. It is not an incorporated city and not a census-designated place, so the Census Bureau publishes no boundary or population for Porter itself; the closest thing is the ZIP code areas named Porter.

That is why a search for Porter 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 Porter

• Porter Heights: 3.8 mi from the center of the Porter ZIP codes, Montgomery County
• Woodbranch: 7.2 mi from the center of the Porter ZIP codes, Montgomery County
• Spring: 7.4 mi from the center of the Porter ZIP codes, Harris County
• Humble: 8.7 mi from the center of the Porter ZIP codes, Harris County
• Patton Village: 8.7 mi from the center of the Porter ZIP codes, Montgomery County
• Roman Forest: 8.7 mi from the center of the Porter 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.