78121 ZIP Code — La Vernia, TX

Wilson County, Texas

ZIP code 78121 is located in La Vernia, Texas, within Wilson County. It covers approximately 102.62 square miles and serves a population of 14,461 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 830.

About ZIP code 78121

The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $328,300. Owner-occupancy is high at 88%, well above the national average.

Median household income is $114,338.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 36 minutes suggests many residents work outside the immediate area.

Educational attainment is near the national average, with 31% of residents holding a bachelor's degree or higher.

Notable community characteristics include a notable veteran presence at 16% of civilians, above the national average of 7%.

Overall, ZIP code 78121 reflects a community defined by a strong veteran community and high homeownership.

14,461

population

102.62

sq mi land

Standard

ZIP type

Central (CT)

timezone

78121 ZIP code map

Cities in ZIP code 78121

Below are the cities the US Postal Service accepts for ZIP code 78121. Using any city not on this list may result in mail delivery delays.

City	Status
La Vernia	Acceptable
La Vernia	Preferred

Nearby ZIP codes

78161 Sutherland Springs (7.3 mi) 78152 Saint Hedwig (8.8 mi) 78101 Adkins (9.6 mi) 78124 Marion (12.8 mi) 78124 Marion (12.8 mi) 78109 Converse (14 mi) 78263 San Antonio (14.1 mi) 78160 Stockdale (15.3 mi) 78123 Mc Queeney (15.8 mi) 78155 Seguin (15.8 mi) 78150 Jbsa Randolph (16.1 mi) 78108 Cibolo (16.1 mi)

Demographics updated 05/2026

Population
Total population	14,461
Population density	141 / sq mi
State FIPS	48
County FIPS	493

Geography
Land area	102.62 sq mi
Water area	0.32 sq mi
Latitude	29.3738
Longitude	-98.0747
Timezone	Central (CT)
Area code	830

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	21.1%	32.6%	39.5%
$50k – $100k	27.9%	28.3%	30.1%
$100k – $200k	38.4%	31.2%	22.6%
Over $200k	12.7%	8.0%	7.8%

Demographics & statistics

14,461

Population

141

People per sq mi

38.9

Median age

$114,338

Median household income

$45,715

Per capita income

$328,300

Median home value

$1,055

Median monthly rent

88.2%

Home ownership

9.0%

Poverty rate

3.3%

Unemployment

4,567

Housing units

30.6%

Bachelor's or higher

Age distribution

Male Female

498

Under 5

510

5–9

523

556

10–14

571

534

15–19

547

279

20–24

286

699

25–34

716

1,084

35–44

1,111

1,171

45–54

1,201

496

55–59

509

460

60–64

471

475

65–74

487

302

75–84

309

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	3,818	26.4%
18 and over	10,643	73.6%
65 and over	1,729	12.0%
Median age	38.9 years

Race & ethnicity

White 70.6%

Hispanic or Latino 12.6%

Two or more races 11.7%

Other race 3.3%

Black or African American 1.3%

Asian 0.3%

American Indian / Alaska Native 0.2%

Group	Count	%
White	11,686	70.6%
Hispanic or Latino	2,085	12.6%
Two or more races	1,933	11.7%
Other race	553	3.3%
Black or African American	209	1.3%
Asian	44	0.3%
American Indian / Alaska Native	36	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	21.1%	32.6%	39.5%
$50k – $100k	27.9%	28.3%	30.1%
$100k – $200k	38.4%	31.2%	22.6%
Over $200k	12.7%	8.0%	7.8%

Under $10k 2.7%

$10k–$15k 2.6%

$15k–$25k 3.2%

$25k–$35k 2.5%

$35k–$50k 6.2%

$50k–$75k 13.6%

$75k–$100k 13.2%

$100k–$150k 20.9%

$150k–$200k 15.0%

$200k+ 20.3%

Range	% of households
Under $10k	2.7%
$10k–$15k	2.6%
$15k–$25k	3.2%
$25k–$35k	2.5%
$35k–$50k	6.2%
$50k–$75k	13.6%
$75k–$100k	13.2%
$100k–$150k	20.9%
$150k–$200k	15.0%
$200k+	20.3%
Median income	$114,338

Housing

Home values

Under $50k 7.7%

$50k–$100k 3.3%

$100k–$150k 8.1%

$150k–$200k 10.5%

$200k–$300k 15.9%

$300k–$500k 34.9%

$500k–$1M 19.0%

$1M+ 0.6%

Housing overview

Metric	Value
Median home value	$328,300
Median rent / month	$1,055
Owner occupied	88.2%
Renter occupied	11.8%
Vacant	6.3%
Single-family detached	69.6%
Large apartment buildings	0.1%
Mobile homes	25.4%
Median rooms	6.1
Avg household size (owned)	3.05

Year built

Era	%
2020 or later	1.8%
2010–2019	24.6%
2000–2009	28.3%
1990–1999	25.1%
1980–1989	8.4%
1970–1979	6.1%
1960–1969	1.5%
1950–1959	1.3%
1940–1949	0.7%
1939 or earlier	2.2%

Bedrooms

Size	% of units
No bedroom (studio)	1.9%
1 bedroom	2.4%
2 bedrooms	11.0%
3 bedrooms	46.6%
4 bedrooms	30.6%
5+ bedrooms	7.6%

Vehicles per household

Vehicles	% of households
No vehicle	1.3%
1 vehicle	14.9%
2 vehicles	39.2%
3 or more	44.6%

Heating fuel

Fuel type	%
Utility gas	1.8%
Electricity	92.7%
Propane / LP gas	4.8%
Wood	0.5%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	3,629	75.5%
Cohabiting couple	232	4.8%
Male householder, no spouse	350	7.3%
Female householder, no spouse	596	12.4%
Households with children under 18	1,949	40.5%
Households with seniors (65+)	1,194	24.8%
Average household size	2.99

Marital status

Status	Male	Female
Never married	26.2%	21.5%
Married	66.5%	64.3%
Separated	0.3%	0.6%
Widowed	1.7%	5.5%
Divorced	5.2%	8.2%

Education

Less than 9th grade 2.1%

Some HS, no diploma 2.3%

HS graduate 29.9%

Some college, no degree 25.6%

Associate's degree 9.6%

Bachelor's degree 21.4%

Graduate / professional 9.2%

Metric	%
HS diploma or higher	95.6%
Bachelor's or higher	30.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	355	9.6%
Kindergarten	170	4.6%
Elementary school	1,785	48.4%
High school	893	24.2%
College / grad school	483	13.1%

Employment

Industry of employment

Education & healthcare 19.2%

Retail trade 13.7%

Professional & management 13.7%

Construction 10.1%

Transportation & utilities 7.1%

Finance & real estate 6.9%

Public administration 6.1%

Manufacturing 5.6%

Arts, food & hospitality 5.2%

Agriculture & mining 4.9%

Other services 4.4%

Wholesale trade 1.8%

Information 1.2%

Occupation

Category	%
Management, business & arts	41.0%
Service	13.4%
Sales & office	24.2%
Natural resources & construction	9.5%
Production & transportation	11.9%

Employment type

Type	%
Private sector	76.4%
Government	16.3%
Self-employed	7.1%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	80.5%
Carpool	4.8%
Public transit	0.0%
Walk	0.1%
Work from home	13.7%
Other means	0.8%
Avg commute (minutes)	36.3

Poverty

All people 9.0%

Under 18 years 12.5%

18 and over 7.7%

Married-couple families 5.3%

Female-led households 23.0%

Income support

Source	% of households
Social Security	29.2%
Retirement income	32.2%
Supplemental Security	2.9%
Cash public assistance	0.4%
Food stamps / SNAP	4.9%

Health indicators

Condition	%
Obesity	35.7%
High blood pressure	33.0%
High cholesterol	34.3%
Diabetes	10.2%
Heart disease	5.8%
Stroke	2.6%
Asthma	8.9%
Arthritis	22.8%
Kidney disease	2.6%
Pulmonary disease	6.1%
Cancer	6.2%

Behavior / access	%
Smoking	17.6%
Binge drinking	19.7%
No physical activity	22.1%
Less than 7 hrs sleep	34.4%
Depression	22.3%
Fair or poor health	14.3%
Poor mental health	14.8%
Poor physical health	10.3%
No health insurance	21.6%
Visited doctor (checkup)	70.2%
Visited dentist	58.5%
Cholesterol screening	90.5%
Teeth loss	12.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,671	15.7%

Disability	%
Any disability	11.1%
Under 18	2.7%
18–64 years	11.0%
65 and over	30.9%

Health insurance coverage

Type	%
Private insurance	78.0%
Public insurance	23.8%
No insurance	8.0%
Uninsured under 19	3.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	13,453	93.0%
Spanish	480	3.6%
Other Indo-European	475	3.5%
Asian & Pacific Islander	5	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	13,705	94.8%
Born in same state	13,460	93.1%
Born in different state	10,248	70.9%
Foreign born	245	1.7%
Naturalized citizen	756	5.2%
Not a US citizen	283	37.4%

Ancestry

Ancestry	Count	%
French	1,587	11%
Italian	1,470	10.2%
Arab	1,079	7.5%
English	103	0.7%

Ancestry	Count	%
Polish	101	0.7%
German	37	0.3%
Irish	18	0.1%

Technology access

Metric	% of households
Computer access	33.2%
Internet access	96.7%

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

Frequently asked questions about ZIP code 78121

What city is ZIP code 78121 in?

ZIP code 78121 is primarily assigned to La Vernia, Texas.

What county is ZIP code 78121 in?

ZIP code 78121 falls within Wilson County, Texas.

Is ZIP code 78121 mostly owner-occupied?

88% of occupied units in ZIP code 78121 are owner-occupied, well above the national average.

Does ZIP code 78121 have a large veteran population?

16% of civilians in ZIP code 78121 are veterans, above the national average of ~7%.

What is the median household income in ZIP code 78121?

The median household income in ZIP code 78121 is $114,338, above the national median of ~$75,000.

What is the typical home value in ZIP code 78121?

The median home value in ZIP code 78121 is $328,300.

What timezone is ZIP code 78121 in?

ZIP code 78121 observes the CST timezone.