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zipcodes.pro — STATE/TX/COUNTY/GONZALES

Gonzales County, TX ZIP codes

There are 10 ZIP codes in Gonzales County, TX, in 10 towns, from 78122 to 78959. The largest are 78629 (Gonzales), 78140 (Nixon) and 78959 (Waelder). 1 more crosses into it from a neighbouring county: 77984.

The county seat is Gonzales.

ZIP codes
10
Partly in it
1 more
Towns
10
County seat
Gonzales
County FIPS
48177
State
Texas
Population
19,851
Median household income
$58,672
Land area
1,067 sq mi

Gonzales County ZIP codes by town

Gonzales (county seat)
78629

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Gonzales County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Gonzales County.

Map of Gonzales County ZIP codes

78122781407815978604786147862978632786587867778959

The ZIP codes of Gonzales County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Gonzales County in numbers

About 19,851 people live in Gonzales County, in 7,926 households, the 125th most populous of Texas's 254 counties. The median household income is $58,672 a year, 25% below the Texas median of $78,476 (US: $80,734). The median owner-occupied home is valued at $159,100 (44% below the Texas median), and median gross rent is $840 a month. The median age is 39.3; 11.9% of adults 25 and over hold a bachelor's degree or higher (33.8% across Texas); the average commute takes 27 minutes.

Population19,851Gonzales19,851
Households7,926Gonzales7,926
Median age39.3Gonzales39.3Texas35.6US 38.9
Median household income$58,672Gonzales$58,672Texas$78,476US $80,734
Median home value$159,100Gonzales$159,100Texas$283,800US $332,700
Median gross rent$840Gonzales$840Texas$1,403US $1,413
Bachelor's degree or higher11.9%Gonzales11.9%Texas33.8%US 35.7%
Mean commute27.2 minGonzales27.2 minTexas26.7 minUS 26.4 min
Population density19 / sq miGonzales19 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Gonzales County

Largest towns in Gonzales County
TownZIP codesPopulation
Gonzales 1 7,200
Nixon 1 2,231
Harwood 1 1,245
Waelder 1 603
Smiley 1 543
Leesville 1 338
Cost 1 262
Ottine 1 94
Wrightsboro 1 44

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Gonzales County.

Not sure you are in Gonzales County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Gonzales County, with figures

ZIP codes in Gonzales County
ZIP City Type Population Median income Median home
78122 Leesville , TX Standard 338 — —
78140 Nixon , TX Standard 3,474 $50,250 $85,200
78159 Smiley , TX Standard 623 $35,083 $132,600
78604 Belmont , TX No street area — — —
78614 Cost , TX Standard 262 — —
78629 Gonzales , TX Standard 12,740 $59,521 $206,700
78632 Harwood , TX Standard 1,245 $62,500 $187,400
78658 Ottine , TX Standard 94 — $434,600
78677 Wrightsboro , TX Standard 44 — —
78959 Waelder , TX Standard 1,157 $60,472 —

Cite this page

zipcodes.pro. “Gonzales County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/tx/county/gonzales

Underlying data is public domain or openly licensed — sources, vintages and licences.