Nixon Texas ZIP Codes

Nixon holds a single ZIP code.

Every ZIP code in Nixon

The complete list of Nixon, Texas ZIP codes with the county each falls in.
ZIP code	County
78140	Gonzales County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Nixon codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Nixon. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Nixon ZIP code begins 781. Those first three digits identify the sectional center facility that processes mail for this part of Texas. Statewide that range covers 46 ZIP codes, so Nixon accounts for 2% of it.

Every Texas ZIP prefix and the region it covers →

Area codes covering Nixon

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Nixon occupies.

830 Area code 830

Nixon Texas area codes in full →

Where Nixon's ZIP codes sit

Each point is one Nixon ZIP code, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Cities near Nixon

The closest places to Nixon with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Smiley Texas ZIP codes	7.7 mi	1 ZIP code
Stockdale Texas ZIP codes	12 mi	1 ZIP code
La Vernia Texas ZIP codes	22 mi	1 ZIP code
Poth Texas ZIP codes	23 mi	1 ZIP code
Falls City Texas ZIP codes	25 mi	1 ZIP code
Seguin Texas ZIP codes	25 mi	2 ZIP codes
Yorktown Texas ZIP codes	25 mi	1 ZIP code
Gonzales Texas ZIP codes	26 mi	1 ZIP code

Straight-line distance between place reference points, not driving distance.