USPS Standard Delivery Code Montgomery County →

77378 ZIP Code: Willis, Texas

Official postal information, geographic coordinates, USPS post office locations, and US Census Bureau demographic metrics for ZIP code 77378 in Willis, TX.

Neighborhoods:

Postal & Geographic Specifications USPS Data

ZIP Code 77378

Primary City Willis, TX

County Montgomery County

Area Code(s) 936

Timezone America/Chicago

Land Area 97.24 sq mi

Elevation 0 ft

Coordinates 30.4200°, -95.4700°

Demographic & Economic Profile (US Census Bureau)

American Community Survey (ACS) 5-Year Verified Metrics

-5% vs Texas Avg

Total Population 17,417 151 people / sq mi

Median Household Income $71,143 Per Capita: $24,068

Median Home Value $199,800 Median Rent: $1,200/mo

Housing Tenancy

60% Own • 40% Rent

6,173 Total Units

Median Household Income Comparison $71,143 (77378) vs. $74,640 (Texas State)

Metrics sourced directly from the official U.S. Census Bureau (2022 ACS 5-Year Estimates).

Verify on data.census.gov

Editor's Neighborhood Insight & Local Context

Data for ZIP code 77378 in Willis, Texas.

USPS Postal Services

Active Route

The primary postal delivery jurisdiction for 77378 operates within Willis, Texas.

Note: Not all ZIP codes have a dedicated physical post office. A single USPS regional facility often serves multiple ZIP codes across a city or county.

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