78643 ZIP Code — Llano, TX

Llano County, Texas

ZIP code 78643 is located in Llano, Texas, within Llano County. It covers approximately 712.26 square miles and serves a population of 6,811 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 325.

About ZIP code 78643

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 $273,600. Owner-occupancy sits near the national average at 73%.

The gap between median ($64,451) and mean household income suggests income inequality — a small number of higher earners pull the average up. 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 23 minutes is near the national average.

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

6,811

population

712.26

sq mi land

Standard

ZIP type

Central (CT)

timezone

78643 ZIP code map

Cities in ZIP code 78643

Below are the cities the US Postal Service accepts for ZIP code 78643. Using any city not on this list may result in mail delivery delays.

City	Status
Llano	Acceptable
Llano	Preferred

Nearby ZIP codes

78609 Buchanan Dam (11.5 mi) 78639 Kingsland (13.1 mi) 78607 Bluffton (13.3 mi) 76885 Valley Spring (13.5 mi) 78672 Tow (14.7 mi) 76831 Castell (15.6 mi)

Demographics updated 07/2026

Population
Total population	6,811
Population density	10 / sq mi
State FIPS	48
County FIPS	299

Geography
Land area	712.26 sq mi
Water area	5.51 sq mi
Latitude	30.7038
Longitude	-98.6571
Timezone	Central (CT)
Area code	325

Total population by age

Gender

Race & ethnicity

Economics updated 07/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	42.3%	42.6%	39.5%
$50k – $100k	30.8%	28.8%	30.1%
$100k – $200k	17.1%	20.5%	22.6%
Over $200k	9.7%	8.1%	7.8%

Demographics & statistics

6,811

Population

People per sq mi

52.4

Median age

$64,451

Median household income

$40,895

Per capita income

$273,600

Median home value

$968

Median monthly rent

73.3%

Home ownership

9.1%

Poverty rate

5.5%

Unemployment

3,476

Housing units

30.7%

Bachelor's or higher

Age distribution

Male Female

140

Under 5

148

138

5–9

147

185

10–14

196

190

15–19

202

164

20–24

174

306

25–34

326

287

35–44

305

365

45–54

389

165

55–59

176

337

60–64

359

636

65–74

677

288

75–84

307

85+

105

← Male

Female →

Age summary

Group	Count	%
Under 18	1,212	17.8%
18 and over	5,599	82.2%
65 and over	2,112	31.0%
Median age	52.4 years

Race & ethnicity

White 90.9%

Hispanic or Latino 3.2%

Two or more races 2.6%

Other race 1.6%

Black or African American 0.7%

American Indian / Alaska Native 0.6%

Asian 0.4%

Group	Count	%
White	6,394	90.9%
Hispanic or Latino	226	3.2%
Two or more races	182	2.6%
Other race	110	1.6%
Black or African American	52	0.7%
American Indian / Alaska Native	42	0.6%
Asian	31	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	42.3%	42.6%	39.5%
$50k – $100k	30.8%	28.8%	30.1%
$100k – $200k	17.1%	20.5%	22.6%
Over $200k	9.7%	8.1%	7.8%

Under $10k 4.1%

$10k–$15k 2.7%

$15k–$25k 10.0%

$25k–$35k 9.7%

$35k–$50k 12.7%

$50k–$75k 19.5%

$75k–$100k 8.5%

$100k–$150k 17.9%

$150k–$200k 4.9%

$200k+ 10.1%

Range	% of households
Under $10k	4.1%
$10k–$15k	2.7%
$15k–$25k	10.0%
$25k–$35k	9.7%
$35k–$50k	12.7%
$50k–$75k	19.5%
$75k–$100k	8.5%
$100k–$150k	17.9%
$150k–$200k	4.9%
$200k+	10.1%
Median income	$64,451

Housing

Home values

Under $50k 5.8%

$50k–$100k 3.6%

$100k–$150k 13.2%

$150k–$200k 14.7%

$200k–$300k 17.5%

$300k–$500k 21.3%

$500k–$1M 17.7%

$1M+ 6.3%

Housing overview

Metric	Value
Median home value	$273,600
Median rent / month	$968
Owner occupied	73.3%
Renter occupied	26.7%
Vacant	29.7%
Single-family detached	79.3%
Large apartment buildings	1.0%
Mobile homes	12.2%
Median rooms	5.4
Avg household size (owned)	2.25

Year built

Era	%
2020 or later	0.3%
2010–2019	10.7%
2000–2009	19.0%
1990–1999	13.6%
1980–1989	15.0%
1970–1979	15.9%
1960–1969	10.3%
1950–1959	5.4%
1940–1949	3.6%
1939 or earlier	6.2%

Bedrooms

Size	% of units
No bedroom (studio)	1.1%
1 bedroom	7.0%
2 bedrooms	24.2%
3 bedrooms	52.7%
4 bedrooms	14.0%
5+ bedrooms	0.9%

Vehicles per household

Vehicles	% of households
No vehicle	3.2%
1 vehicle	30.0%
2 vehicles	37.9%
3 or more	28.9%

Heating fuel

Fuel type	%
Utility gas	10.8%
Electricity	78.6%
Propane / LP gas	7.4%
Wood	1.9%
Solar	1.0%
No fuel used	0.1%

Households & families

Household type	Count	%
Married-couple family	1,522	50.6%
Cohabiting couple	166	5.5%
Male householder, no spouse	483	16.1%
Female householder, no spouse	837	27.8%
Households with children under 18	632	21.0%
Households with seniors (65+)	1,471	48.9%
Average household size	2.22

Marital status

Status	Male	Female
Never married	26.1%	15.9%
Married	56.5%	50.6%
Separated	1.8%	0.4%
Widowed	2.4%	13.9%
Divorced	13.2%	19.2%

Education

Less than 9th grade 2.8%

Some HS, no diploma 5.9%

HS graduate 28.2%

Some college, no degree 25.3%

Associate's degree 7.2%

Bachelor's degree 23.8%

Graduate / professional 6.9%

Metric	%
HS diploma or higher	91.3%
Bachelor's or higher	30.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	106	9.0%
Kindergarten	19	1.6%
Elementary school	554	46.8%
High school	389	32.9%
College / grad school	116	9.8%

Employment

Industry of employment

Education & healthcare 21.4%

Retail trade 13.8%

Construction 12.4%

Professional & management 12.4%

Transportation & utilities 10.9%

Arts, food & hospitality 6.5%

Finance & real estate 6.3%

Agriculture & mining 3.6%

Manufacturing 3.6%

Wholesale trade 2.5%

Information 2.5%

Public administration 2.3%

Other services 1.8%

Occupation

Category	%
Management, business & arts	35.4%
Service	13.8%
Sales & office	23.6%
Natural resources & construction	14.3%
Production & transportation	12.8%

Employment type

Type	%
Private sector	68.1%
Government	17.8%
Self-employed	14.1%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	77.4%
Carpool	12.0%
Public transit	0.0%
Walk	1.9%
Work from home	7.9%
Other means	0.8%
Avg commute (minutes)	22.7

Poverty

All people 9.1%

Under 18 years 12.3%

18 and over 8.4%

Married-couple families 1.7%

Female-led households 18.0%

Income support

Source	% of households
Social Security	46.8%
Retirement income	36.2%
Supplemental Security	5.9%
Cash public assistance	1.4%
Food stamps / SNAP	8.8%

Health indicators

Condition	%
Obesity	35.6%
High blood pressure	44.1%
High cholesterol	43.0%
Diabetes	14.6%
Heart disease	9.9%
Stroke	4.4%
Asthma	9.4%
Arthritis	31.8%
Kidney disease	4.0%
Pulmonary disease	10.4%
Cancer	9.2%

Behavior / access	%
Smoking	19.9%
Binge drinking	15.6%
No physical activity	27.3%
Less than 7 hrs sleep	32.1%
Depression	22.7%
Fair or poor health	20.5%
Poor mental health	14.7%
Poor physical health	14.2%
No health insurance	22.9%
Visited doctor (checkup)	74.9%
Visited dentist	54.5%
Cholesterol screening	91.4%
Teeth loss	16.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	527	9.4%

Disability	%
Any disability	20.5%
Under 18	12.9%
18–64 years	15.2%
65 and over	33.9%

Health insurance coverage

Type	%
Private insurance	67.8%
Public insurance	43.6%
No insurance	12.0%
Uninsured under 19	4.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	6,523	95.8%
Spanish	162	2.5%
Other Indo-European	152	2.3%
Asian & Pacific Islander	7	0.1%
Other languages	3	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	6,639	97.5%
Born in same state	6,569	96.4%
Born in different state	4,774	70.1%
Foreign born	70	1.0%
Naturalized citizen	172	2.5%
Not a US citizen	75	43.6%

Ancestry

Ancestry	Count	%
French	1,122	16.5%
Italian	829	12.2%
Arab	652	9.6%
Polish	113	1.7%
English	70	1%

Ancestry	Count	%
German	20	0.3%
Norwegian	10	0.1%
Dutch	10	0.1%
Irish	7	0.1%

Technology access

Metric	% of households
Computer access	44.2%
Internet access	94.2%

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

Frequently asked questions about ZIP code 78643

What city is ZIP code 78643 in?

ZIP code 78643 is primarily assigned to Llano, Texas.

What county is ZIP code 78643 in?

ZIP code 78643 falls within Llano County, Texas.

Does ZIP code 78643 have an older population?

31% of residents in ZIP code 78643 are 65 or older, above the national average of ~17%.

Does ZIP code 78643 have a large retiree population?

47% of households in ZIP code 78643 receive Social Security income, suggesting a significant retiree or disability population.

Does ZIP code 78643 have a large veteran population?

9% of civilians in ZIP code 78643 are veterans, above the national average of ~7%.

What is the population of ZIP code 78643?

ZIP code 78643 has an estimated population of 6,811 residents, with a density of 10 people per square mile.

What timezone is ZIP code 78643 in?

ZIP code 78643 observes the CST timezone.