78614 ZIP Code — Cost, TX

Gonzales County, Texas

ZIP code 78614 is located in Cost, Texas, within Gonzales County. It covers approximately 54.95 square miles and serves a population of 302 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 830.

About ZIP code 78614

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $403,100. Owner-occupancy is high at 93%, well above the national average.

Median household income is $58,553.

The dominant occupation class is production, transportation, and material moving, with retail trade as the leading industry. The average commute of 29 minutes is near the national average.

Educational attainment is near the national average, with 44% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of smoking (21%) compared to national benchmarks.

302

population

54.95

sq mi land

Standard

ZIP type

Central (CT)

timezone

78614 ZIP code map

Cities in ZIP code 78614

Below are the cities the US Postal Service accepts for ZIP code 78614. Using any city not on this list may result in mail delivery delays.

City	Status
Cost	Acceptable
Cost	Preferred

Nearby ZIP codes

78629 Gonzales (7.1 mi) 78140 Nixon (10.2 mi) 78122 Leesville (12.3 mi) 78159 Smiley (12.9 mi) 78632 Harwood (18.6 mi) 77994 Westhoff (18.7 mi) 78648 Luling (19.3 mi)

Demographics updated 05/2026

Population
Total population	302
Population density	5 / sq mi
State FIPS	48
County FIPS	177

Geography
Land area	54.95 sq mi
Water area	0.00 sq mi
Latitude	29.4201
Longitude	-97.5741
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	37.2%	43.0%	39.5%
$50k – $100k	33.2%	33.7%	30.1%
$100k – $200k	26.5%	18.6%	22.6%
Over $200k	3.1%	4.7%	7.8%

Demographics & statistics

302

Population

People per sq mi

60.2

Median age

$58,553

Median household income

$34,422

Per capita income

$403,100

Median home value

Median monthly rent

92.5%

Home ownership

2.0%

Poverty rate

0.0%

Unemployment

249

Housing units

44.4%

Bachelor's or higher

Age distribution

Male Female

10–14

15–19

20–24

35–44

45–54

55–59

60–64

65–74

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	25	8.3%
18 and over	277	91.7%
65 and over	60	19.9%
Median age	60.2 years

Race & ethnicity

White 87%

Hispanic or Latino 6.5%

Two or more races 6.5%

Group	Count	%
White	281	87%
Hispanic or Latino	21	6.5%
Two or more races	21	6.5%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	37.2%	43.0%	39.5%
$50k – $100k	33.2%	33.7%	30.1%
$100k – $200k	26.5%	18.6%	22.6%
Over $200k	3.1%	4.7%	7.8%

Under $10k 3.8%

$15k–$25k 30.0%

$35k–$50k 8.1%

$50k–$75k 18.8%

$75k–$100k 8.1%

$100k–$150k 25.0%

$150k–$200k 6.3%

Range	% of households
Under $10k	3.8%
$15k–$25k	30.0%
$35k–$50k	8.1%
$50k–$75k	18.8%
$75k–$100k	8.1%
$100k–$150k	25.0%
$150k–$200k	6.3%
Median income	$58,553

Housing

Home values

Under $50k 16.9%

$150k–$200k 12.8%

$200k–$300k 19.6%

$300k–$500k 21.6%

$500k–$1M 4.7%

$1M+ 24.3%

Housing overview

Metric	Value
Median home value	$403,100
Median rent / month	$0
Owner occupied	92.5%
Renter occupied	7.5%
Vacant	38.7%
Single-family detached	82.0%
Large apartment buildings	0.0%
Mobile homes	18.0%
Median rooms	6.0
Avg household size (owned)	1.80

Year built

Era	%
2020 or later	0.0%
2010–2019	10.3%
2000–2009	39.8%
1990–1999	16.9%
1980–1989	5.0%
1970–1979	6.5%
1960–1969	2.3%
1950–1959	13.0%
1940–1949	0.0%
1939 or earlier	6.1%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	46.4%
3 bedrooms	36.4%
4 bedrooms	16.1%
5+ bedrooms	1.1%

Vehicles per household

Vehicles	% of households
No vehicle	0.0%
1 vehicle	41.9%
2 vehicles	34.4%
3 or more	23.8%

Heating fuel

Fuel type	%
Electricity	89.4%
Propane / LP gas	10.6%

Households & families

Household type	Count	%
Married-couple family	93	58.1%
Cohabiting couple	0	0.0%
Male householder, no spouse	12	7.5%
Female householder, no spouse	55	34.4%
Households with children under 18	15	9.4%
Households with seniors (65+)	56	35.0%
Average household size	1.89

Marital status

Status	Male	Female
Never married	16.3%	1.9%
Married	74.0%	59.9%
Separated	0.0%	3.2%
Widowed	0.0%	12.1%
Divorced	9.8%	22.9%

Education

Less than 9th grade 1.9%

Some HS, no diploma 6.6%

HS graduate 16.3%

Some college, no degree 19.1%

Associate's degree 11.7%

Bachelor's degree 32.3%

Graduate / professional 12.1%

Metric	%
HS diploma or higher	91.4%
Bachelor's or higher	44.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	22	66.7%
High school	7	21.2%
College / grad school	4	12.1%

Employment

Industry of employment

Retail trade 37.9%

Education & healthcare 20.7%

Agriculture & mining 20.1%

Transportation & utilities 7.5%

Manufacturing 5.7%

Wholesale trade 4.0%

Other services 4.0%

Occupation

Category	%
Management, business & arts	19.5%
Service	4.6%
Sales & office	23.6%
Natural resources & construction	11.5%
Production & transportation	40.8%

Employment type

Type	%
Private sector	83.3%
Government	13.2%
Self-employed	3.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	68.4%
Carpool	20.7%
Public transit	0.0%
Walk	2.9%
Work from home	5.2%
Other means	2.9%
Avg commute (minutes)	29.0

Poverty

All people 2.0%

Under 18 years 0.0%

18 and over 2.2%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	24.4%
Retirement income	21.9%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	38.1%
High blood pressure	37.4%
High cholesterol	37.6%
Diabetes	13.0%
Heart disease	8.0%
Stroke	3.6%
Asthma	9.2%
Arthritis	25.5%
Kidney disease	3.3%
Pulmonary disease	8.6%
Cancer	6.7%

Behavior / access	%
Smoking	20.7%
Binge drinking	18.2%
No physical activity	28.4%
Less than 7 hrs sleep	33.6%
Depression	22.4%
Fair or poor health	19.9%
Poor mental health	15.7%
Poor physical health	13.1%
No health insurance	28.7%
Visited doctor (checkup)	71.0%
Visited dentist	50.8%
Cholesterol screening	88.4%
Teeth loss	18.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	25	9.0%

Disability	%
Any disability	7.3%
Under 18	0.0%
18–64 years	3.2%
65 and over	25.0%

Health insurance coverage

Type	%
Private insurance	83.8%
Public insurance	19.9%
No insurance	8.6%
Uninsured under 19	17.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	302	100.0%
Spanish	10	3.3%
Other Indo-European	10	3.3%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	292	96.7%
Born in same state	292	96.7%
Born in different state	260	86.1%
Foreign born	0	0.0%
Naturalized citizen	10	3.3%
Not a US citizen	5	50.0%

Ancestry

Ancestry	Count	%
Arab	39	12.9%
French	33	10.9%

Ancestry	Count	%
Italian	12	4%
Polish	9	3%

Technology access

Metric	% of households
Computer access	53.0%
Internet access	96.3%

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

Frequently asked questions about ZIP code 78614

What city is ZIP code 78614 in?

ZIP code 78614 is primarily assigned to Cost, Texas.

What county is ZIP code 78614 in?

ZIP code 78614 falls within Gonzales County, Texas.

Is ZIP code 78614 mostly owner-occupied?

93% of occupied units in ZIP code 78614 are owner-occupied, well above the national average.

What is the typical home value in ZIP code 78614?

The median home value in ZIP code 78614 is $403,100.

What is the population of ZIP code 78614?

ZIP code 78614 has an estimated population of 302 residents, with a density of 5 people per square mile.

What is the median household income in ZIP code 78614?

The median household income in ZIP code 78614 is $58,553, below the national median of ~$75,000.

What timezone is ZIP code 78614 in?

ZIP code 78614 observes the CST timezone.