78738 ZIP Code — Austin, TX

Travis County, Texas

ZIP code 78738 is located in Austin, Texas, within Travis County. It covers approximately 42.09 square miles and serves a population of 28,613 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 512.

About ZIP code 78738

The housing stock consists of predominantly single-family detached homes. Much of the housing stock is relatively new, reflecting recent development activity. Median home value is $691,400. Owner-occupancy is high at 77%, well above the national average.

The gap between median ($158,194) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 5% is below the national average.

The dominant occupation class is management, business, and professional, with professional and management as the leading industry. The average commute of 26 minutes is near the national average. Remote work is prevalent — 37% of workers work from home.

Educational attainment is high — 76% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 78738 reflects a community defined by a highly educated population, high homeownership, and a high rate of remote workers.

28,613

population

42.09

sq mi land

Standard

ZIP type

Central (CT)

timezone

78738 ZIP code map

Cities in ZIP code 78738

Below are the cities the US Postal Service accepts for ZIP code 78738. Using any city not on this list may result in mail delivery delays.

City	Status
Austin	Acceptable
Austin	Preferred

Nearby ZIP codes

78736 Austin (4.6 mi) 78734 Austin (5.9 mi) 78733 Austin (6.9 mi) 78732 Austin (8 mi) 78735 Austin (8.4 mi) 78737 Austin (9.2 mi) 78645 Leander (9.5 mi) 78730 Austin (10.4 mi) 78620 Dripping Springs (10.5 mi) 78749 Austin (10.6 mi) 78746 Austin (10.9 mi) 78739 Austin (11.1 mi)

Demographics updated 06/2026

Population
Total population	28,613
Population density	680 / sq mi
State FIPS	48
County FIPS	453

Geography
Land area	42.09 sq mi
Water area	0.05 sq mi
Latitude	30.3048
Longitude	-97.9967
Timezone	Central (CT)
Area code	512

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	19.3%	30.7%	39.5%
$50k – $100k	23.7%	29.5%	30.1%
$100k – $200k	31.1%	27.7%	22.6%
Over $200k	25.9%	12.1%	7.8%

Demographics & statistics

28,613

Population

680

People per sq mi

42.4

Median age

$158,194

Median household income

$79,709

Per capita income

$691,400

Median home value

$1,896

Median monthly rent

76.8%

Home ownership

4.8%

Poverty rate

1.7%

Unemployment

9,290

Housing units

75.7%

Bachelor's or higher

Age distribution

Male Female

835

Under 5

816

1,227

5–9

1,199

1,268

10–14

1,240

870

15–19

851

239

20–24

233

1,263

25–34

1,234

2,329

35–44

2,276

2,439

45–54

2,384

964

55–59

943

820

60–64

801

1,441

65–74

1,408

612

75–84

598

163

85+

160

← Male

Female →

Age summary

Group	Count	%
Under 18	7,972	27.9%
18 and over	20,641	72.1%
65 and over	4,382	15.3%
Median age	42.4 years

Race & ethnicity

White 70.3%

Asian 13.7%

Two or more races 6.7%

Hispanic or Latino 5%

Black or African American 3.1%

Other race 1.1%

American Indian / Alaska Native 0.1%

Group	Count	%
White	21,178	70.3%
Asian	4,117	13.7%
Two or more races	2,016	6.7%
Hispanic or Latino	1,521	5%
Black or African American	933	3.1%
Other race	334	1.1%
American Indian / Alaska Native	35	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	19.3%	30.7%	39.5%
$50k – $100k	23.7%	29.5%	30.1%
$100k – $200k	31.1%	27.7%	22.6%
Over $200k	25.9%	12.1%	7.8%

Under $10k 4.7%

$10k–$15k 1.0%

$15k–$25k 2.0%

$25k–$35k 1.6%

$35k–$50k 5.9%

$50k–$75k 7.3%

$75k–$100k 9.6%

$100k–$150k 15.7%

$150k–$200k 12.4%

$200k+ 39.7%

Range	% of households
Under $10k	4.7%
$10k–$15k	1.0%
$15k–$25k	2.0%
$25k–$35k	1.6%
$35k–$50k	5.9%
$50k–$75k	7.3%
$75k–$100k	9.6%
$100k–$150k	15.7%
$150k–$200k	12.4%
$200k+	39.7%
Median income	$158,194

Housing

Home values

Under $50k 0.2%

$50k–$100k 0.1%

$150k–$200k 0.4%

$200k–$300k 1.9%

$300k–$500k 17.5%

$500k–$1M 57.0%

$1M+ 22.9%

Housing overview

Metric	Value
Median home value	$691,400
Median rent / month	$1,896
Owner occupied	76.8%
Renter occupied	23.2%
Vacant	6.3%
Single-family detached	77.3%
Large apartment buildings	10.9%
Mobile homes	0.1%
Median rooms	7.4
Avg household size (owned)	2.76

Year built

Era	%
2020 or later	3.7%
2010–2019	51.9%
2000–2009	26.9%
1990–1999	10.8%
1980–1989	4.3%
1970–1979	1.3%
1960–1969	0.0%
1950–1959	0.3%
1940–1949	0.0%
1939 or earlier	0.7%

Bedrooms

Size	% of units
No bedroom (studio)	0.5%
1 bedroom	9.9%
2 bedrooms	14.4%
3 bedrooms	22.8%
4 bedrooms	35.4%
5+ bedrooms	17.0%

Vehicles per household

Vehicles	% of households
No vehicle	2.6%
1 vehicle	29.3%
2 vehicles	50.9%
3 or more	17.2%

Heating fuel

Fuel type	%
Utility gas	29.8%
Electricity	57.6%
Propane / LP gas	11.0%
Fuel oil	0.6%
Wood	0.2%
Solar	0.3%
No fuel used	0.1%

Households & families

Household type	Count	%
Married-couple family	7,940	71.4%
Cohabiting couple	519	4.7%
Male householder, no spouse	1,288	11.6%
Female householder, no spouse	1,381	12.4%
Households with children under 18	4,740	42.6%
Households with seniors (65+)	2,834	25.5%
Average household size	2.57

Marital status

Status	Male	Female
Never married	18.3%	14.6%
Married	72.6%	70.9%
Separated	1.0%	2.1%
Widowed	0.8%	3.2%
Divorced	7.3%	9.2%

Education

Less than 9th grade 0.5%

Some HS, no diploma 1.5%

HS graduate 7.4%

Some college, no degree 11.6%

Associate's degree 3.4%

Bachelor's degree 45.6%

Graduate / professional 30.1%

Metric	%
HS diploma or higher	98.0%
Bachelor's or higher	75.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	752	9.8%
Kindergarten	428	5.6%
Elementary school	3,874	50.2%
High school	1,655	21.5%
College / grad school	1,002	13.0%

Employment

Industry of employment

Professional & management 26.4%

Education & healthcare 17.0%

Finance & real estate 13.9%

Manufacturing 11.4%

Retail trade 9.7%

Arts, food & hospitality 5.4%

Public administration 3.6%

Transportation & utilities 3.1%

Construction 2.9%

Information 2.4%

Other services 2.2%

Wholesale trade 1.1%

Agriculture & mining 1.0%

Occupation

Category	%
Management, business & arts	66.0%
Service	6.6%
Sales & office	22.4%
Natural resources & construction	2.0%
Production & transportation	3.0%

Employment type

Type	%
Private sector	82.8%
Government	10.7%
Self-employed	6.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	55.0%
Carpool	4.4%
Public transit	0.4%
Walk	1.8%
Work from home	37.3%
Other means	1.1%
Avg commute (minutes)	25.7

Poverty

All people 4.8%

Under 18 years 2.3%

18 and over 5.7%

Married-couple families 5.5%

Female-led households 7.2%

Income support

Source	% of households
Social Security	23.7%
Retirement income	18.9%
Supplemental Security	1.1%
Cash public assistance	0.4%
Food stamps / SNAP	3.5%

Health indicators

Condition	%
Obesity	25.7%
High blood pressure	24.9%
High cholesterol	33.7%
Diabetes	6.9%
Heart disease	4.4%
Stroke	1.8%
Asthma	8.0%
Arthritis	18.0%
Kidney disease	2.1%
Pulmonary disease	3.7%
Cancer	6.1%

Behavior / access	%
Smoking	9.4%
Binge drinking	19.7%
No physical activity	12.8%
Less than 7 hrs sleep	26.9%
Depression	21.5%
Fair or poor health	8.3%
Poor mental health	11.8%
Poor physical health	6.9%
No health insurance	11.6%
Visited doctor (checkup)	70.4%
Visited dentist	72.5%
Cholesterol screening	93.3%
Teeth loss	5.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,465	7.1%

Disability	%
Any disability	6.9%
Under 18	0.7%
18–64 years	6.1%
65 and over	21.3%

Health insurance coverage

Type	%
Private insurance	89.0%
Public insurance	17.5%
No insurance	3.6%
Uninsured under 19	1.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	26,962	94.2%
Spanish	552	2.0%
Other Indo-European	161	0.6%
Asian & Pacific Islander	164	0.6%
Other languages	207	0.8%

Place of birth & citizenship

Origin	Count	%
Native born (US)	24,365	85.2%
Born in same state	23,923	83.6%
Born in different state	10,955	38.3%
Foreign born	442	1.5%
Naturalized citizen	4,248	14.8%
Not a US citizen	2,717	64.0%

Ancestry

Ancestry	Count	%
French	3,609	12.6%
Italian	1,936	6.8%
Arab	1,186	4.1%
Polish	491	1.7%
English	368	1.3%

Ancestry	Count	%
Dutch	95	0.3%
Irish	50	0.2%
German	45	0.2%
Norwegian	4	0%

Technology access

Metric	% of households
Computer access	38.9%
Internet access	99.8%

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

Frequently asked questions about ZIP code 78738

What city is ZIP code 78738 in?

ZIP code 78738 is primarily assigned to Austin, Texas.

What county is ZIP code 78738 in?

ZIP code 78738 falls within Travis County, Texas.

How educated is the population of ZIP code 78738?

76% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the median household income in ZIP code 78738?

The median household income in ZIP code 78738 is $158,194, above the national median of ~$75,000.

What is the typical home value in ZIP code 78738?

The median home value in ZIP code 78738 is $691,400.

What is the population of ZIP code 78738?

ZIP code 78738 has an estimated population of 28,613 residents, with a density of 680 people per square mile.

What timezone is ZIP code 78738 in?

ZIP code 78738 observes the CST timezone.