USPS Standard Delivery Code
Gonzales County →
78140 ZIP Code: Nixon, Texas
Official postal information, geographic coordinates, USPS post office locations, and US Census Bureau demographic metrics for ZIP code 78140 in Nixon, TX.
Neighborhoods:
Postal & Geographic Specifications USPS Data
ZIP Code 78140
Primary City Nixon, TX
County Gonzales County
Area Code(s) 830
Timezone America/Chicago
Land Area 145.03 sq mi
Elevation 0 ft
Coordinates 29.2600°, -97.7600°
Demographic & Economic Profile (US Census Bureau)
American Community Survey (ACS) 5-Year Verified Metrics
Total Population 3,607 23 people / sq mi
Median Household Income $50,250 Per Capita: $15,896
Median Home Value $85,200 Median Rent: $1,200/mo
Housing Tenancy
60% Own • 40% Rent
1,410 Total Units Median Household Income Comparison $50,250 (78140) 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 78140 in Nixon, Texas.
USPS Postal Services
Active RouteThe primary postal delivery jurisdiction for 78140 operates within Nixon, 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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Geographic Map & Coordinates
29.2600, -97.7600Adjacent & Contiguous ZIP Codes
Nearby ZIP codes bordering 78140 in Nixon
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