Nixon, TX ZIP Code

ZIP code, county, time zone and coordinates of Nixon, Texas

The ZIP code of Nixon, TX is 78140. It is in Gonzales County.

Mailing address format for Nixon

John Smith
123 Main St
NIXON TX 78140
USA

USPS prefers capital letters without punctuation. Check the exact ZIP+4 for a street address on the USPS website.

ZIP code	Population	Area
78140	—	175.0 sq mi	Main

ZIP Code Tabulation Areas (ZCTA), U.S. Census Bureau. A ZCTA can cover parts of more than one town.

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What is the ZIP code for Nixon, TX?

The main ZIP code for Nixon, TX is 78140.

How many ZIP codes does Nixon have?

Nixon has 1 ZIP code.

What county is Nixon, TX in?

Nixon is in Gonzales County, Texas.

What time zone is Nixon in?

Nixon is in the America/Chicago time zone (CST, UTC-06:00 right now).

What are the coordinates of Nixon?

Latitude 29.26967, longitude -97.76588.

Last updated: November 14, 2026