🇳🇬
Postcode.com.ng
Tools
USPS Standard Delivery Code Milam County →

78331 ZIP Code: Cameron, Texas

Official postal information, geographic coordinates, USPS post office locations, and US Census Bureau demographic metrics for postal code 78331 in Cameron, TX.

Neighborhoods: Cameron Cameron Central

Postal & Geographic Specifications USPS Data

ZIP Code 78331
Primary City Cameron, TX
County Milam County
Area Code(s) 512, 737
Timezone America/Chicago (CST / CDT)
Land Area 1017 sq mi
Elevation 480 ft
Coordinates 29.7000°, -103.9000°

Demographic & Economic Profile (US Census Bureau)

American Community Survey (ACS) 5-Year Verified Metrics

+10% vs Texas Avg
Total Population 9,902 195 people / sq mi
Median Household Income $81,840 Per Capita: $51,350
Median Home Value $353,000 Median Rent: $1,550/mo
Housing Tenancy
62% Own • 38% Rent
4,305 Total Units
Median Household Income Comparison $81,840 (78331) vs. $74,640 (Texas State)

Editor's Neighborhood Insight & Local Context

78331 is an active postal delivery zone serving Cameron in Milam County, Texas. Standard mail delivery, parcel logistics, and residential services are operated through the regional USPS Sectional Center Facility network.

Designated USPS Post Office Facility Mail & Parcel Drop-off

Facility Name USPS Post Office - Cameron
Physical Address 100 Main St, Cameron, TX 78331
Phone Number (800) 275-8777
Retail Lobby Hours

Mon-Fri 8:30 AM - 5:00 PM; Sat 9:00 AM - 1:00 PM; Sun Closed

Passport appointments and PO Box access available at this location.

Geographic Map & Coordinates

29.7000, -103.9000

Adjacent & Contiguous ZIP Codes

Nearby postal codes bordering 78331 in Cameron

4 Contiguous Areas
78031 ~0 mi

Johnson City

View 78031 →
78131 ~0 mi

San Diego

View 78131 →
78231 ~0 mi

Greenville

View 78231 →
78431 ~0 mi

Sterling City

View 78431 →
Explore Major Texas Metropolitan Regions:
All Texas Metros & Counties →
Austin Houston Dallas Fort Worth San Antonio Plano Arlington Irving El Paso Lubbock

Frequently Asked Questions About 78331 (Cameron, TX)

What county is ZIP code 78331 located in for tax and voter purposes? ▾

ZIP code 78331 is located within Milam County, Texas. The official county seat is Cameron, and the primary jurisdiction carries Texas FIPS code 48331.

What is the 4-digit ZIP+4 code for 78331? ▾

The full 9-digit postal code format is 78331-XXXX, where the last 4 digits specify exact delivery routes, high-rise buildings, or street blocks. For regular mail and parcel shipping, the 5-digit code 78331 is fully valid, while specific ZIP+4 extensions can be verified with USPS address validation.

Where is the nearest USPS post office for 78331 and what are the lobby hours? ▾

The primary USPS facility serving 78331 is USPS Post Office - Cameron, located at 100 Main St, Cameron, TX 78331. Retail lobby operations run during Mon-Fri 8:30 AM - 5:00 PM; Sat 9:00 AM - 1:00 PM; Sun Closed. Contact inquiries can be made at (800) 275-8777.

What telephone area codes and time zone apply to 78331? ▾

ZIP code 78331 is located in the America/Chicago (CST / CDT) time zone (observing Daylight Saving Time). Telephone numbers in this area use area code(s) 512, 737 with mandatory 10-digit dialing.

What is the population and median household income for 78331? ▾

According to U.S. Census Bureau ACS data, ZIP code 78331 in Cameron has an estimated population of 9,902 residents and a median household income of $81,840 per year (compared to the Texas state median of $74,640).

What postal codes border 78331 in Cameron? ▾

Adjacent and contiguous ZIP codes bordering 78331 include 78031 (Johnson City, ~0 mi), 78131 (San Diego, ~0 mi), 78231 (Greenville, ~0 mi), 78431 (Sterling City, ~0 mi).