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ZIP Code 78731
Austin, TX, Travis County
Population
27,507
Land area
8.7sq mi
People per sq mi
3,145
City
Austin
ZIP 78731 and nearby ZIP codes
ZIP 78731 at a glance
- ZIP 78731 (Austin) is about 27 times as dense as Texas as a whole.
- The median household income is $105,494, 34% above the Texas median of $78,476.
- A typical owner-occupied home is valued at $903,200 (about 3.2 times the Texas figure) and median rent is $1,737 a month.
Local data for ZIP 78731
Counts from official public data
Housing and community stats
ZIP 78731, American Community Survey 2020-2024
Median household income
$105,494
Poverty rate
6.0%
Median home value
$903,200
Prices +0.1% in a year
Median rent
$1,737/mo
Homeownership
53.1%
Bachelor's or higher
78.3%
Median age
42.3
Average commute
20.9 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
2,255
ZIP Business Patterns 2023
Employees
24,680
$1.85B annual payroll
PPP loans
$166M
1,648 loans
Campaign donations
$2.79M
34% D, 18% R, 2026 cycle
Environment and hazard risk
ZIP 78731, from FEMA, NOAA and EPA
Natural hazard risk
Relatively High
Top: tornado
Storm events since 1996
1,072
Countywide, mostly hail
Flood insurance policies
6,295
2.0% of homes, county
July high / Jan low
97° / 42°F
36.3 inches of rain a year
Health statistics
Share of adults in ZIP 78731, CDC PLACES estimates
Obesity
25.9%
U.S. 33.3% -7.4 pts
Diabetes
7.7%
U.S. 12.1% -4.4 pts
Smoking
6.4%
U.S. 12.8% -6.4 pts
Uninsured (18-64)
7.5%
U.S. 11.1% -3.6 pts
Cities in ZIP 78731
ZIP codes near 78731
| Name | Distance | Land area (sq mi) |
|---|---|---|
| 78757Austin | 2.4 mi | 5 |
| 78756Austin | 2.8 mi | 1.7 |
| 78759Austin | 3.4 mi | 14.3 |
| 78703Austin | 3.7 mi | 5.6 |
| 78751Austin | 4.1 mi | 2.4 |
| 78730Austin | 4.1 mi | 15.1 |
| 78752Austin | 4.2 mi | 3.3 |
| 78705Austin | 4.2 mi | 2.1 |
| 78758Austin | 4.3 mi | 9.1 |
| 78746West Lake Hills | 4.6 mi | 22.9 |
| 78750Austin | 5.1 mi | 11.8 |
| 78712Austin | 5.1 mi | 0.6 |
Frequently asked questions
- What city is ZIP code 78731?
- ZIP code 78731 is in Austin, TX (Travis County).
- What county is ZIP code 78731 in?
- ZIP code 78731 is mostly in Travis County, Texas.
- How many people live in ZIP code 78731?
- About 27,507 people live in the 78731 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.