78039 ZIP Code — La Coste, TX

Medina County, Texas

ZIP code 78039 is located in La Coste, Texas, within Medina County. It covers approximately 20.76 square miles and serves a population of 2,193 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 830.

About ZIP code 78039

The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $86,600. Owner-occupancy is high at 86%, well above the national average.

The gap between median ($69,669) and mean household income suggests income inequality — a small number of higher earners pull the average up. 44% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 27 minutes is near the national average.

College attainment at 19% is below the national average, consistent with a trades and production-oriented local economy.

Overall, ZIP code 78039 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.

2,193

population

20.76

sq mi land

Standard

ZIP type

Central (CT)

timezone

78039 ZIP code map

Cities in ZIP code 78039

Below are the cities the US Postal Service accepts for ZIP code 78039. Using any city not on this list may result in mail delivery delays.

City	Status
La Coste	Preferred

Nearby ZIP codes

78009 Castroville (4.7 mi) 78002 Atascosa (6.6 mi) 78252 San Antonio (7 mi) 78052 Lytle (7.1 mi) 78059 Natalia (8.7 mi) 78245 San Antonio (9.3 mi) 78016 Devine (10.6 mi) 78253 San Antonio (10.8 mi) 78066 Rio Medina (11.3 mi) 78236 Jbsa Lackland (12.8 mi) 78069 Somerset (12.8 mi) 78073 Von Ormy (13.2 mi)

Demographics updated 05/2026

Population
Total population	2,193
Population density	106 / sq mi
State FIPS	48
County FIPS	325

Geography
Land area	20.76 sq mi
Water area	0.11 sq mi
Latitude	29.3174
Longitude	-98.8277
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	33.1%	38.5%	39.5%
$50k – $100k	32.2%	33.0%	30.1%
$100k – $200k	32.6%	23.4%	22.6%
Over $200k	2.2%	5.1%	7.8%

Demographics & statistics

2,193

Population

106

People per sq mi

44.6

Median age

$69,669

Median household income

$37,029

Per capita income

$86,600

Median home value

$933

Median monthly rent

85.9%

Home ownership

12.1%

Poverty rate

0.3%

Unemployment

779

Housing units

19.1%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

143

25–34

187

149

35–44

193

45–54

108

55–59

127

60–64

165

107

65–74

138

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	349	15.9%
18 and over	1,844	84.1%
65 and over	397	18.1%
Median age	44.6 years

Race & ethnicity

White 55.6%

Hispanic or Latino 21.2%

Two or more races 19.7%

Other race 2.2%

Black or African American 1.3%

Group	Count	%
White	1,547	55.6%
Hispanic or Latino	589	21.2%
Two or more races	548	19.7%
Other race	61	2.2%
Black or African American	37	1.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	33.1%	38.5%	39.5%
$50k – $100k	32.2%	33.0%	30.1%
$100k – $200k	32.6%	23.4%	22.6%
Over $200k	2.2%	5.1%	7.8%

Under $10k 9.8%

$10k–$15k 2.8%

$15k–$25k 7.3%

$25k–$35k 1.9%

$35k–$50k 8.0%

$50k–$75k 23.8%

$75k–$100k 6.9%

$100k–$150k 25.3%

$150k–$200k 6.0%

$200k+ 8.1%

Range	% of households
Under $10k	9.8%
$10k–$15k	2.8%
$15k–$25k	7.3%
$25k–$35k	1.9%
$35k–$50k	8.0%
$50k–$75k	23.8%
$75k–$100k	6.9%
$100k–$150k	25.3%
$150k–$200k	6.0%
$200k+	8.1%
Median income	$69,669

Housing

Home values

Under $50k 18.7%

$50k–$100k 33.8%

$100k–$150k 20.5%

$150k–$200k 1.8%

$200k–$300k 7.4%

$300k–$500k 12.0%

$500k–$1M 0.3%

$1M+ 5.5%

Housing overview

Metric	Value
Median home value	$86,600
Median rent / month	$933
Owner occupied	85.9%
Renter occupied	14.1%
Vacant	8.0%
Single-family detached	63.4%
Large apartment buildings	0.0%
Mobile homes	35.6%
Median rooms	6.5
Avg household size (owned)	2.69

Year built

Era	%
2020 or later	0.0%
2010–2019	11.5%
2000–2009	13.9%
1990–1999	33.2%
1980–1989	8.9%
1970–1979	8.3%
1960–1969	9.8%
1950–1959	6.5%
1940–1949	2.7%
1939 or earlier	5.3%

Bedrooms

Size	% of units
No bedroom (studio)	2.7%
1 bedroom	3.1%
2 bedrooms	25.8%
3 bedrooms	50.1%
4 bedrooms	16.0%
5+ bedrooms	2.3%

Vehicles per household

Vehicles	% of households
No vehicle	6.0%
1 vehicle	23.3%
2 vehicles	31.2%
3 or more	39.5%

Heating fuel

Fuel type	%
Utility gas	36.3%
Electricity	54.7%
Propane / LP gas	7.4%
No fuel used	1.6%

Households & families

Household type	Count	%
Married-couple family	440	53.5%
Cohabiting couple	29	3.5%
Male householder, no spouse	73	8.9%
Female householder, no spouse	281	34.1%
Households with children under 18	244	29.6%
Households with seniors (65+)	334	40.6%
Average household size	2.66

Marital status

Status	Male	Female
Never married	37.3%	29.2%
Married	51.2%	41.0%
Separated	0.0%	2.1%
Widowed	4.0%	16.3%
Divorced	7.6%	11.4%

Education

Less than 9th grade 3.6%

Some HS, no diploma 5.2%

HS graduate 53.6%

Some college, no degree 13.1%

Associate's degree 5.3%

Bachelor's degree 13.9%

Graduate / professional 5.2%

Metric	%
HS diploma or higher	91.2%
Bachelor's or higher	19.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	15	3.3%
Kindergarten	0	0.0%
Elementary school	157	34.5%
High school	142	31.2%
College / grad school	141	31.0%

Employment

Industry of employment

Education & healthcare 43.6%

Finance & real estate 11.6%

Transportation & utilities 10.4%

Retail trade 6.8%

Professional & management 6.4%

Manufacturing 5.1%

Public administration 4.9%

Construction 4.8%

Arts, food & hospitality 4.8%

Agriculture & mining 0.9%

Other services 0.6%

Occupation

Category	%
Management, business & arts	31.9%
Service	19.2%
Sales & office	26.7%
Natural resources & construction	7.8%
Production & transportation	14.4%

Employment type

Type	%
Private sector	72.5%
Government	16.7%
Self-employed	10.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	77.6%
Carpool	7.8%
Public transit	0.0%
Walk	1.6%
Work from home	13.0%
Other means	0.0%
Avg commute (minutes)	27.3

Poverty

All people 12.1%

Under 18 years 26.6%

18 and over 9.3%

Married-couple families 4.5%

Female-led households 16.5%

Income support

Source	% of households
Social Security	43.9%
Retirement income	41.3%
Supplemental Security	21.0%
Cash public assistance	6.4%
Food stamps / SNAP	12.9%

Health indicators

Condition	%
Obesity	39.9%
High blood pressure	35.9%
High cholesterol	36.7%
Diabetes	13.4%
Heart disease	7.0%
Stroke	3.1%
Asthma	8.7%
Arthritis	23.4%
Kidney disease	3.2%
Pulmonary disease	6.5%
Cancer	6.3%

Behavior / access	%
Smoking	16.1%
Binge drinking	17.3%
No physical activity	27.0%
Less than 7 hrs sleep	32.2%
Depression	21.2%
Fair or poor health	18.7%
Poor mental health	14.7%
Poor physical health	11.8%
No health insurance	29.8%
Visited doctor (checkup)	71.8%
Visited dentist	54.7%
Cholesterol screening	89.7%
Teeth loss	13.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	138	7.6%

Disability	%
Any disability	21.9%
Under 18	13.5%
18–64 years	19.2%
65 and over	39.0%

Health insurance coverage

Type	%
Private insurance	61.5%
Public insurance	41.0%
No insurance	11.9%
Uninsured under 19	2.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,136	97.4%
Spanish	301	14.1%
Other Indo-European	301	14.1%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,167	98.8%
Born in same state	2,124	96.9%
Born in different state	1,917	87.4%
Foreign born	43	2.0%
Naturalized citizen	26	1.2%
Not a US citizen	23	88.5%

Ancestry

Ancestry	Count	%
French	192	8.8%
Italian	127	5.8%
Polish	75	3.4%

Ancestry	Count	%
Arab	29	1.3%
English	8	0.4%

Technology access

Metric	% of households
Computer access	37.5%
Internet access	93.7%

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

Frequently asked questions about ZIP code 78039

What city is ZIP code 78039 in?

ZIP code 78039 is primarily assigned to La Coste, Texas.

What county is ZIP code 78039 in?

ZIP code 78039 falls within Medina County, Texas.

Is ZIP code 78039 mostly owner-occupied?

86% of occupied units in ZIP code 78039 are owner-occupied, well above the national average.

Does ZIP code 78039 have a large retiree population?

44% of households in ZIP code 78039 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 78039?

The median home value in ZIP code 78039 is $86,600.

What is the population of ZIP code 78039?

ZIP code 78039 has an estimated population of 2,193 residents, with a density of 106 people per square mile.

What timezone is ZIP code 78039 in?

ZIP code 78039 observes the CST timezone.