78648 ZIP Code — Luling, TX

Caldwell County, Texas

ZIP code 78648 is located in Luling, Texas, within Caldwell County. It covers approximately 132.92 square miles and serves a population of 8,250 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 830/737.

About ZIP code 78648

The housing stock consists of a mix of housing types. Most homes were built in the 1970s, giving the area an established character. Median home value is $183,500. Owner-occupancy sits near the national average at 72%.

Median household income is $55,406. 47% 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 28 minutes is near the national average.

College attainment at 13% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of diabetes (15%), smoking (21%) compared to national benchmarks. 22% of residents lack health insurance, above the national average.

Notable community characteristics include disability rates above the national average at 23%.

Overall, ZIP code 78648 reflects a community defined by a trades-oriented workforce and a significant Social Security-dependent population.

8,250

population

132.92

sq mi land

Standard

ZIP type

Central (CT)

timezone

78648 ZIP code map

Cities in ZIP code 78648

Below are the cities the US Postal Service accepts for ZIP code 78648. Using any city not on this list may result in mail delivery delays.

City	Status
Luling	Acceptable
Luling	Preferred

Nearby ZIP codes

78632 Harwood (8.8 mi) 78638 Kingsbury (12 mi) 78655 Martindale (12.8 mi) 78644 Lockhart (13.6 mi) 78616 Dale (13.8 mi) 78656 Maxwell (17.9 mi) 78953 Rosanky (18.5 mi) 78614 Cost (19.3 mi) 78629 Gonzales (19.3 mi)

Demographics updated 06/2026

Population
Total population	8,250
Population density	62 / sq mi
State FIPS	48
County FIPS	055

Geography
Land area	132.92 sq mi
Water area	0.69 sq mi
Latitude	29.6946
Longitude	-97.6311
Timezone	Central (CT)
Area code	830/737

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	47.5%	43.7%	39.5%
$50k – $100k	35.3%	36.0%	30.1%
$100k – $200k	15.2%	16.9%	22.6%
Over $200k	2.1%	3.4%	7.8%

Demographics & statistics

8,250

Population

People per sq mi

48.8

Median age

$55,406

Median household income

$26,875

Per capita income

$183,500

Median home value

$1,023

Median monthly rent

71.5%

Home ownership

9.2%

Poverty rate

5.8%

Unemployment

2,773

Housing units

13.0%

Bachelor's or higher

Age distribution

Male Female

303

Under 5

282

5–9

177

10–14

165

15–19

154

279

20–24

260

476

25–34

443

547

35–44

508

482

45–54

449

285

55–59

265

379

60–64

352

606

65–74

564

311

75–84

290

184

85+

172

← Male

Female →

Age summary

Group	Count	%
Under 18	1,212	14.7%
18 and over	7,038	85.3%
65 and over	2,127	25.8%
Median age	48.8 years

Race & ethnicity

White 45.8%

Hispanic or Latino 23.3%

Two or more races 16.3%

Other race 8.8%

Black or African American 5%

Asian 0.5%

American Indian / Alaska Native 0.2%

Group	Count	%
White	4,928	45.8%
Hispanic or Latino	2,512	23.3%
Two or more races	1,757	16.3%
Other race	945	8.8%
Black or African American	543	5%
Asian	52	0.5%
American Indian / Alaska Native	25	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	47.5%	43.7%	39.5%
$50k – $100k	35.3%	36.0%	30.1%
$100k – $200k	15.2%	16.9%	22.6%
Over $200k	2.1%	3.4%	7.8%

Under $10k 7.2%

$10k–$15k 1.4%

$15k–$25k 12.0%

$25k–$35k 12.5%

$35k–$50k 8.4%

$50k–$75k 26.4%

$75k–$100k 16.8%

$100k–$150k 7.1%

$150k–$200k 6.2%

$200k+ 2.1%

Range	% of households
Under $10k	7.2%
$10k–$15k	1.4%
$15k–$25k	12.0%
$25k–$35k	12.5%
$35k–$50k	8.4%
$50k–$75k	26.4%
$75k–$100k	16.8%
$100k–$150k	7.1%
$150k–$200k	6.2%
$200k+	2.1%
Median income	$55,406

Housing

Home values

Under $50k 16.0%

$50k–$100k 16.5%

$100k–$150k 10.3%

$150k–$200k 13.3%

$200k–$300k 33.3%

$300k–$500k 7.7%

$500k–$1M 1.7%

$1M+ 1.1%

Housing overview

Metric	Value
Median home value	$183,500
Median rent / month	$1,023
Owner occupied	71.5%
Renter occupied	28.5%
Vacant	8.8%
Single-family detached	66.8%
Large apartment buildings	3.9%
Mobile homes	14.0%
Median rooms	4.9
Avg household size (owned)	2.42

Year built

Era	%
2020 or later	0.0%
2010–2019	5.7%
2000–2009	8.3%
1990–1999	10.4%
1980–1989	8.2%
1970–1979	23.3%
1960–1969	13.1%
1950–1959	13.5%
1940–1949	5.1%
1939 or earlier	12.4%

Bedrooms

Size	% of units
No bedroom (studio)	0.9%
1 bedroom	11.9%
2 bedrooms	29.2%
3 bedrooms	42.6%
4 bedrooms	10.7%
5+ bedrooms	4.6%

Vehicles per household

Vehicles	% of households
No vehicle	10.0%
1 vehicle	27.8%
2 vehicles	42.0%
3 or more	20.2%

Heating fuel

Fuel type	%
Utility gas	23.6%
Electricity	67.2%
Propane / LP gas	7.5%
Wood	0.8%

Households & families

Household type	Count	%
Married-couple family	1,694	49.6%
Cohabiting couple	92	2.7%
Male householder, no spouse	749	21.9%
Female householder, no spouse	879	25.7%
Households with children under 18	779	22.8%
Households with seniors (65+)	1,464	42.9%
Average household size	2.36

Marital status

Status	Male	Female
Never married	32.0%	20.4%
Married	53.0%	52.6%
Separated	1.1%	0.0%
Widowed	3.3%	11.2%
Divorced	10.6%	15.8%

Education

Less than 9th grade 7.0%

Some HS, no diploma 14.4%

HS graduate 36.7%

Some college, no degree 25.0%

Associate's degree 3.9%

Bachelor's degree 7.8%

Graduate / professional 5.2%

Metric	%
HS diploma or higher	78.6%
Bachelor's or higher	13.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	106	12.8%
Kindergarten	45	5.4%
Elementary school	219	26.4%
High school	257	30.9%
College / grad school	204	24.5%

Employment

Industry of employment

Education & healthcare 17.6%

Retail trade 15.3%

Arts, food & hospitality 10.6%

Agriculture & mining 9.4%

Professional & management 9.2%

Transportation & utilities 8.8%

Manufacturing 7.4%

Public administration 6.0%

Other services 5.3%

Construction 4.6%

Finance & real estate 2.5%

Information 2.1%

Wholesale trade 1.3%

Occupation

Category	%
Management, business & arts	27.2%
Service	26.2%
Sales & office	12.8%
Natural resources & construction	15.5%
Production & transportation	18.2%

Employment type

Type	%
Private sector	80.9%
Government	10.7%
Self-employed	8.2%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	74.2%
Carpool	13.9%
Public transit	0.0%
Walk	2.8%
Work from home	7.2%
Other means	2.0%
Avg commute (minutes)	28.3

Poverty

All people 9.2%

Under 18 years 7.1%

18 and over 9.6%

Married-couple families 1.9%

Female-led households 12.0%

Income support

Source	% of households
Social Security	47.3%
Retirement income	26.1%
Supplemental Security	7.1%
Cash public assistance	1.6%
Food stamps / SNAP	9.3%

Health indicators

Condition	%
Obesity	39.9%
High blood pressure	39.8%
High cholesterol	36.7%
Diabetes	15.4%
Heart disease	8.4%
Stroke	4.2%
Asthma	9.7%
Arthritis	26.6%
Kidney disease	3.9%
Pulmonary disease	9.1%
Cancer	6.5%

Behavior / access	%
Smoking	21.1%
Binge drinking	16.3%
No physical activity	33.7%
Less than 7 hrs sleep	33.5%
Depression	22.5%
Fair or poor health	24.3%
Poor mental health	16.4%
Poor physical health	14.7%
No health insurance	34.7%
Visited doctor (checkup)	71.1%
Visited dentist	46.9%
Cholesterol screening	87.5%
Teeth loss	21.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	517	7.3%

Disability	%
Any disability	23.3%
Under 18	12.7%
18–64 years	17.7%
65 and over	43.9%

Health insurance coverage

Type	%
Private insurance	57.5%
Public insurance	38.2%
No insurance	21.6%
Uninsured under 19	11.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	7,665	92.9%
Spanish	739	9.6%
Other Indo-European	739	9.6%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	7,329	88.8%
Born in same state	7,271	88.1%
Born in different state	6,221	75.4%
Foreign born	58	0.7%
Naturalized citizen	921	11.2%
Not a US citizen	332	36.0%

Ancestry

Ancestry	Count	%
French	768	9.3%
Italian	561	6.8%
Arab	346	4.2%
English	26	0.3%

Ancestry	Count	%
Dutch	20	0.2%
Polish	7	0.1%
Norwegian	6	0.1%

Technology access

Metric	% of households
Computer access	41.4%
Internet access	90.1%

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

Frequently asked questions about ZIP code 78648

What city is ZIP code 78648 in?

ZIP code 78648 is primarily assigned to Luling, Texas.

What county is ZIP code 78648 in?

ZIP code 78648 falls within Caldwell County, Texas.

Does ZIP code 78648 have an older population?

26% of residents in ZIP code 78648 are 65 or older, above the national average of ~17%.

Does ZIP code 78648 have a large retiree population?

47% of households in ZIP code 78648 receive Social Security income, suggesting a significant retiree or disability population.

How educated is the population of ZIP code 78648?

13% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

What are the health statistics for ZIP code 78648?

Health data for ZIP code 78648 shows elevated rates of diabetes (15%) and smoking (21%) compared to national benchmarks.

What timezone is ZIP code 78648 in?

ZIP code 78648 observes the CST timezone.