Nixon ZIP Code List — Gonzales County, TX

There is one unique ZIP code in Nixon, Texas and it is 78140. Area code: 830.

ZIP codes

175.04

sq mi land

0.74

sq mi water

830

area code

Nixon, TX ZIP code map

About Nixon, TX

Nixon is a charming city located in Gonzales County, Texas, known for its small-town feel and rich community spirit. The city offers a quiet lifestyle complemented by a scenic landscape that includes both land and water features. With a ZIP code of 78140, Nixon serves as a hub for local residents and connects them to the larger region of Texas.

Location & geography

Situated in the south-central part of Texas, Nixon covers a land area of 175.04 square miles and includes a minor water area of 0.74 square miles. It is bordered by several towns, with the nearest major cities being Gonzales, located about 20 miles to the northeast, and San Antonio, roughly 60 miles to the southwest. The terrain is primarily flat, typical of Central Texas, and supports various agricultural activities.

Community & economy

Nixon's community is characterized by a friendly atmosphere, where residents are known for their hospitality and pride in their city. The local economy is supported by agriculture and small businesses, with residents participating in daily activities centered around community events and local gatherings. Schools and recreational facilities help foster a strong sense of community among the inhabitants.

Transportation

Key highways serving Nixon include U.S. Highway 87 and State Highway 111, providing easy access to nearby towns and major cities. The nearest significant airport is San Antonio International Airport, located about 60 miles away, facilitating travel for residents. Public transportation options are limited, but the close-knit community often relies on personal vehicles.

History

Nixon was founded in the late 19th century and was initially centered around agricultural pursuits, particularly cotton farming. The city has grown steadily over the years and has played an important role in the agricultural sector of Gonzales County. Various local festivals celebrate the city's rich history and community heritage, reflecting its longstanding traditions.

Did you know?

One surprising fact about Nixon is that it hosts an annual event called the Nixon Rodeo, which draws participants and spectators from surrounding areas. Additionally, the city is part of the historical Cotton Gin Trail, emphasizing its agricultural roots.

ZIP codes for Nixon, TX (1)

ZIP code	City	County	Map
78140	Nixon	Gonzales	View map

Demographics & statistics

3,889

Population

27.6

Median age

$66,940

Median household income

$24,464

Per capita income

$90,100

Median home value

$875

Median monthly rent

67.3%

Home ownership

7.3%

Poverty rate

2.4%

Unemployment

1,053

Housing units

4.2%

Bachelor's or higher

Age distribution

Male Female

270

Under 5

286

140

5–9

148

161

10–14

170

130

15–19

138

149

20–24

159

325

25–34

345

203

35–44

215

148

45–54

157

119

55–59

127

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	1,342	34.5%
18 and over	2,547	65.5%
65 and over	340	8.7%
Median age	27.6 years

Race & ethnicity

White 62.6%

Hispanic or Latino 17.4%

Two or more races 11.2%

Other race 8.3%

Black or African American 0.4%

Group	Count	%
White	2,950	62.6%
Hispanic or Latino	820	17.4%
Two or more races	526	11.2%
Other race	392	8.3%
Black or African American	21	0.4%

Household income

Under $10k 2.8%

$10k–$15k 5.5%

$15k–$25k 4.3%

$25k–$35k 6.6%

$35k–$50k 18.8%

$50k–$75k 24.4%

$75k–$100k 14.8%

$100k–$150k 14.5%

$150k–$200k 7.6%

$200k+ 0.8%

Range	% of households
Under $10k	2.8%
$10k–$15k	5.5%
$15k–$25k	4.3%
$25k–$35k	6.6%
$35k–$50k	18.8%
$50k–$75k	24.4%
$75k–$100k	14.8%
$100k–$150k	14.5%
$150k–$200k	7.6%
$200k+	0.8%
Median income	$66,940

Housing

Home values

Under $50k 25.3%

$50k–$100k 34.0%

$100k–$150k 9.5%

$150k–$200k 4.5%

$200k–$300k 18.0%

$300k–$500k 3.8%

$500k–$1M 4.9%

Housing overview

Metric	Value
Median home value	$90,100
Median rent / month	$875
Owner occupied	67.3%
Renter occupied	32.7%
Vacant	13.0%
Single-family detached	64.8%
Large apartment buildings	0.0%
Mobile homes	29.2%
Median rooms	5.0
Avg household size (owned)	3.16

Year built

Era	%
2020 or later	0.9%
2010–2019	8.0%
2000–2009	3.3%
1990–1999	15.2%
1980–1989	24.5%
1970–1979	16.1%
1960–1969	8.6%
1950–1959	16.1%
1940–1949	1.6%
1939 or earlier	5.8%

Bedrooms

Size	% of units
No bedroom (studio)	0.2%
1 bedroom	13.4%
2 bedrooms	21.5%
3 bedrooms	51.7%
4 bedrooms	12.4%
5+ bedrooms	0.7%

Vehicles per household

Vehicles	% of households
No vehicle	7.3%
1 vehicle	34.1%
2 vehicles	34.8%
3 or more	23.7%

Heating fuel

Fuel type	%
Utility gas	14.9%
Electricity	83.1%
Propane / LP gas	2.0%

Households & families

Household type	Count	%
Married-couple family	580	45.3%
Cohabiting couple	135	10.5%
Male householder, no spouse	161	12.6%
Female householder, no spouse	404	31.6%
Households with children under 18	543	42.4%
Households with seniors (65+)	356	27.8%
Average household size	3.03

Marital status

Status	Male	Female
Never married	32.2%	34.3%
Married	58.4%	41.5%
Separated	0.3%	2.1%
Widowed	3.1%	5.6%
Divorced	6.0%	16.5%

Education

Less than 9th grade 11.5%

Some HS, no diploma 16.6%

HS graduate 44.7%

Some college, no degree 15.7%

Associate's degree 7.2%

Bachelor's degree 3.6%

Graduate / professional 0.6%

Metric	%
HS diploma or higher	71.9%
Bachelor's or higher	4.2%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	96	9.4%
Kindergarten	83	8.1%
Elementary school	521	50.9%
High school	211	20.6%
College / grad school	113	11.0%

Employment

Industry of employment

Manufacturing 37.5%

Agriculture & mining 16.5%

Education & healthcare 6.8%

Construction 5.8%

Retail trade 5.8%

Finance & real estate 5.8%

Other services 5.8%

Wholesale trade 5.4%

Arts, food & hospitality 4.5%

Transportation & utilities 2.7%

Professional & management 2.3%

Public administration 1.0%

Occupation

Category	%
Management, business & arts	12.8%
Service	8.3%
Sales & office	13.7%
Natural resources & construction	22.8%
Production & transportation	42.4%

Employment type

Type	%
Private sector	88.2%
Government	4.7%
Self-employed	7.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	83.1%
Carpool	4.1%
Public transit	0.0%
Walk	3.5%
Other means	3.7%
Avg commute (minutes)	23.9

Poverty

All people 7.3%

Under 18 years 4.2%

18 and over 8.9%

Married-couple families 1.2%

Female-led households 18.7%

Income support

Source	% of households
Social Security	25.9%
Retirement income	14.7%
Supplemental Security	2.0%
Cash public assistance	0.0%
Food stamps / SNAP	13.8%

Health indicators

Condition	%
High blood pressure	35.3%
High cholesterol	35.6%
Heart disease	7.1%
Stroke	3.4%
Asthma	9.2%
Arthritis	22.8%
Kidney disease	3.4%
Pulmonary disease	7.5%
Cancer	5.4%

Behavior / access	%
Binge drinking	17.5%
No physical activity	34.2%
Less than 7 hrs sleep	34.9%
Fair or poor health	23.8%
Poor mental health	16.4%
Poor physical health	13.8%
No health insurance	41.1%
Visited doctor (checkup)	69.5%
Visited dentist	44.1%
Cholesterol screening	86.0%
Teeth loss	19.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	52	2.0%

Disability	%
Any disability	12.8%
Under 18	15.7%
18–64 years	7.7%
65 and over	35.0%

Health insurance coverage

Type	%
Private insurance	52.0%
Public insurance	28.7%
Uninsured under 19	12.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	3,333	85.7%
Spanish	807	24.2%
Other Indo-European	807	24.2%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	3,081	79.2%
Born in same state	3,063	78.8%
Born in different state	2,750	70.7%
Foreign born	18	0.5%
Naturalized citizen	808	20.8%
Not a US citizen	181	22.4%

Ancestry

Ancestry	Count	%
Italian	185	4.8%
Arab	130	3.3%

Ancestry	Count	%
French	87	2.2%
English	18	0.5%

Technology access

Metric	% of households
Computer access	32.9%
Internet access	90.5%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What is the ZIP code for Nixon, TX?

Nixon, TX has one ZIP code: 78140.

What is the main ZIP code for Nixon, TX?

The primary ZIP code for Nixon, TX is 78140. The city uses area code 830 for phone service.

What county is Nixon, TX in?

Nixon is located in Gonzales County, Texas.

How many ZIP codes are in Nixon, TX?

Nixon, TX has 1 ZIP code.

What is the ZIP code for the downtown Nixon area near the Gonzales County Courthouse?

The downtown Nixon area, including locations near the historic Gonzales County Courthouse, uses ZIP code 78140.

What ZIP code should I use when mailing something to a business in Nixon located on Highway 183?

Businesses in Nixon along Highway 183 and throughout the city use ZIP code 78140.