What county is Cypress, TX in?

Cypress, TX is in Harris County. Cypress is a mailing address name, not a city: ZIP codes 77429 and 77433, whose post office name is Cypress, lie entirely in Harris County.

Cypress at a glance

Which counties are Cypress 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.

Is Cypress a city?

No. Cypress is the post office name for ZIP codes 77429 and 77433. It is not an incorporated city and not a census-designated place, so the Census Bureau publishes no boundary or population for Cypress itself; the closest thing is the ZIP code areas named Cypress.

That is why a search for Cypress 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 Cypress

• Jersey Village: 9.3 mi from the center of the Cypress ZIP codes, Harris County
• Tomball: 10 mi from the center of the Cypress ZIP codes, Harris County
• Katy: 15 mi from the center of the Cypress ZIP codes, Harris County
• Pinehurst: 15 mi from the center of the Cypress ZIP codes, Montgomery County
• Waller: 15 mi from the center of the Cypress ZIP codes, Waller County
• Cinco Ranch: 16 mi from the center of the Cypress ZIP codes, Fort Bend County

About Harris County

County seat: Houston. FIPS code 48201. Population 4,758,579. All Harris 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.