Postal Codes

78731 ZIP Code

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ZIP code 78731 covers Austin, Texas, with a population of about 27,136 and a median household income of $102,886.

Population
27,1363,103 per square mile
Median age
41.73 points above the US average
Median household income
$102,8861.3× the Texas median
Poverty rate
7.1%5.3 points below the US average
Typical home value
$1,035,664up 0.6% in five years
Median rent
$1,6731.2× the Texas median
Degree or higher
78.5%43.5 points above the US average
Homeownership
53.4%11.6 points below the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
1,964

Where 78731 is

Austin, Texas — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population27,136
Median age41.7
Family households47.5%
Born outside the US12.3%
Speaks a language other than English at home18.3%
White (non-Hispanic)72.1%
Black (non-Hispanic)1.8%
Asian (non-Hispanic)8.3%
Hispanic or Latino14.5%
Veterans4.8%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$102,886
Income per person$91,118
Poverty rate7.1%
Households on SNAP or cash assistance1.8%

Household income distribution

Under $10k4.3%
$10–15k2.4%
$15–20k1.9%
$20–25k1.3%
$25–30k1.9%
$30–35k3.1%
$35–40k2.9%
$40–45k4.6%
$45–50k4.9%
$50–60k4.2%
$60–75k8.7%
$75–100k8.6%
$100–125k9.4%
$125–150k4.3%
$150–200k9.6%
$200k or more28.0%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed14,190
Mean adjusted gross income$295,574
Returns declaring $200,000 or more31.3%
Returns, under $25k16.6%
Returns, $25k–$50k14.7%
Returns, $50k–$75k12.0%
Returns, $75k–$100k7.5%
Returns, $100k–$200k17.9%
Returns, $200k or more31.3%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$839,500
Median gross rent$1,673
Rent as a share of household income30%
Owner-occupied53.4%
Vacant homes5.2%
Median year built1979

What the homes are

Detached house46.9%
Attached house7.7%
2 to 4 units5.8%
5 to 19 units19.7%
20 or more units19.4%
Mobile home0.4%
Boat, RV or van0.1%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$1,035,664as of 2026-07
Typical home value, 1 yearup 0.5%
Typical home value, 5 yearsup 0.6%
Typical home value, 10 yearsup 64%
Typical asking rent$1,729as of 2026-07
Typical asking rent, 1 yearup 1.6%
Typical asking rent, 5 yearsup 2.4%
Typical home value since 2000
200020132026$1,263,952$367,671

$374,594 in 2000 to $1,035,664 in 2026.

Typical asking rent
201720212026$1,865$1,347

$1,347 in 2017 to $1,729 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate4.2%
Bachelor's degree or higher78.5%
High school diploma or higher98.5%
Works from home33%
Drives to work alone59.1%
Takes public transport2%
Commutes 45 minutes or more3%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity25.9% 7.5 pts below the national average of 33.4%
Diagnosed diabetes7.7% 4.3 pts below the national average of 12%
Currently smokes6.4% 6.8 pts below the national average of 13.2%
High blood pressure27.5% 6.6 pts below the national average of 34.1%
Fair or poor general health11.2% 9.1 pts below the national average of 20.3%
No health insurance (18–64)7.5% 3.8 pts below the national average of 11.3%
Depression21.7% same as the national average of 21.9%
No leisure-time physical activity14.6% 10.8 pts below the national average of 25.4%
Arthritis20.7% 4.4 pts below the national average of 25.1%
Binge drinking18.6% 2.6 pts above the national average of 16%
Taking blood pressure medication74.8% same as the national average of 74.7%
Cancer (non-skin)8.7% 1 pts above the national average of 7.7%
Current asthma8.9% 1.5 pts below the national average of 10.4%
Coronary heart disease4.5% 1.7 pts below the national average of 6.2%
Routine check-up in past year76.1% 0.6 pts below the national average of 76.7%
Cholesterol screening89.8% 3.9 pts above the national average of 85.9%
Cognitive disability9% 5.8 pts below the national average of 14.8%
Colorectal screening70.7% 6.4 pts above the national average of 64.3%
COPD3.6% 3 pts below the national average of 6.6%
Visited a dentist71.8% 10.5 pts above the national average of 61.3%
Any disability19.8% 10.9 pts below the national average of 30.7%
Hearing disability5.3% 1.4 pts below the national average of 6.7%
High cholesterol35.3% 0.9 pts below the national average of 36.2%
Independent living disability4.7% 3.7 pts below the national average of 8.4%
Mammography use81.1% 5.2 pts above the national average of 75.9%
Poor mental health (14+ days)13.3% 3.5 pts below the national average of 16.8%
Mobility disability8.3% 5.7 pts below the national average of 14%
Poor physical health (14+ days)8.7% 4.8 pts below the national average of 13.5%
Self-care disability2% 2 pts below the national average of 4%
Sleeps under 7 hours27.3% 9.1 pts below the national average of 36.4%
Stroke2.2% 1.2 pts below the national average of 3.4%
All natural teeth lost4.5% 8.5 pts below the national average of 13%
Vision disability2.7% 2.9 pts below the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments1,964
People employed21,430
Annual payroll$1,898,784,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 39.1% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 9 census tracts this ZIP code covers
Expected annual loss50.4 out of 100
Community resilience62.6 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Hail89.2Relatively High at its worst in this ZIP code
Tornado81.3Relatively High at its worst in this ZIP code
Landslide70.9Relatively Low at its worst in this ZIP code
Wildfire68.2Relatively Moderate at its worst in this ZIP code
Heat wave63.5Relatively Moderate at its worst in this ZIP code
River flooding53.4Relatively Moderate at its worst in this ZIP code
Hurricane48.1Very Low at its worst in this ZIP code
Strong wind40.9Relatively Low at its worst in this ZIP code
Cold wave30.5Relatively Low at its worst in this ZIP code
Ice storm29.1Relatively Low at its worst in this ZIP code
Winter weather28.6Relatively Low at its worst in this ZIP code
Lightning28.4Relatively Low at its worst in this ZIP code
Earthquake6.8Very Low at its worst in this ZIP code
Compared with Texas and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPTexasUnited States
Median household income$102,886$76,292$78,538
Income per person$91,118$39,446$43,289
Poverty rate7.1%13.8%12.4%
Median home value$839,500$260,400$303,400
Median gross rent$1,673$1,339$1,348
Homeownership53.4%62.6%65%
Bachelor's degree or higher78.5%33.1%35%
Unemployment rate4.2%5.1%5.2%
Works from home33%12.8%13.5%
Born outside the US12.3%17.2%13.9%
Median age41.735.538.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationAUSTIN-CAMP MABRY, TX US2.9 km away
Rain in a year36 in
Snow in a year0 in

Average high and low by month

January62.5°F / 41.8°F2.64 in rain
February66.5°F / 45.8°F1.89 in rain, 0.2 in snow
March73.3°F / 52.2°F2.88 in rain
April80.3°F / 58.9°F2.42 in rain
May86.9°F / 66.8°F5.04 in rain
June93.2°F / 72.9°F3.68 in rain
July96.6°F / 75°F1.96 in rain
August97.8°F / 75.1°F2.74 in rain
September91.4°F / 70.1°F3.45 in rain
October82.5°F / 60.8°F3.91 in rain
November71.5°F / 50.5°F2.92 in rain
December63.9°F / 43.4°F2.72 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarket60% of this ZIP code's area
No vehicle and far from a supermarket4% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

Austin Independent School District100% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability15more vulnerable than 15% of US census tracts
Socioeconomic status13more vulnerable than 13% of US census tracts
Household characteristics22more vulnerable than 22% of US census tracts
Racial and ethnic minority status32more vulnerable than 32% of US census tracts
Housing type and transport44more vulnerable than 44% of US census tracts
Walkability10.4 out of 20Below average
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

73301 Austin, TX2.5 km away
73344 Austin, TX2.5 km away
78651 Mc Neil, TX2.5 km away
78708 Austin, TX2.5 km away
78709 Austin, TX2.5 km away
78711 Austin, TX2.5 km away
78718 Austin, TX2.5 km away
78720 Austin, TX2.5 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Travis County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area8.75 sq mi
Water area0.2 sq mi
Population density3,103 people per sq mi
Latitude, longitude30.3471, -97.7609

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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