ZIP Code 78731
standardSource:
Austin · Travis County · Texas
- Population
- 24,614
- Median income
- $105,494
- Median home value
- $903,200
- Bachelor's or higher
- 78.3%
- Land area
- 22.4 sq mi
1,097/sq mi
▲ 38% vs US
higher than 84% of US ZIPs
▲ 225% vs US
higher than 97% of US ZIPs
Median age 42.3
Chicago
ZIP code 78731 in Austin, Texas has a population of 24,614. The median household income is $105,494, which is 38% above the national average. Median home value is $903,200, 225% above the US average. 78.3% of residents hold a bachelor's degree or higher.
ZIP code 78731 is classified by USPS as a standard delivery area and covers roughly 22.4 square miles in Austin, Travis County, Texas. The area is home to 24,614 residents, producing a population density of 1,097 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 78731 against Texas and the nation.
On the economic side, the median household income for ZIP 78731 sits at $105,494 (40% above the Texas average), while per-capita income is $94,483. The poverty rate stands at 6.0% and the unemployment rate at 4.6%. On housing, the median home value is $903,200 (265% above the state average) with median rent at $1,737 per month, and 53.1% of occupied units are owner-occupied, a direct signal of whether 78731 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 78.3% of adults hold a bachelor's degree or higher, the median age is 42.3, and the average commute is 21 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Travis County, so you can benchmark 78731 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 78731
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 78731.
- Professional, scientific, and technical services
Professional, scientific, and technical services
684 establishments
- Health care and social assistance
Health care and social assistance
370 establishments
- Real estate and rental and leasing 191
Real estate and rental and leasing
191 establishments
- Finance and insurance 161
Finance and insurance
161 establishments
- Administrative and support and waste management and remediation services 133
Administrative and support and waste management and remediation services
133 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 78731, Austin, TX · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
24,614
Population
22.4
Area (sq mi)
1,097
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 78731?
42.3
Median Age
52.5%
Male
47.5%
Female
11.7%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$105,494
Median Household Income
+40% vs state
$94,483
Per Capita Income
6.0%
Poverty Rate
4.6%
Unemployment Rate
20.9 min
Mean Commute Time
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
15,163
Total Housing Units
14,343
Occupied Units
820
Vacant Units
1.91
Avg Household Size
Occupancy Type
$903,200
Median Home Value
+265% vs state
$1,737
Median Rent
1980
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
-0.1%
YoY Change (2024)
344
HPI Index (2000 = 100)
+244%
Total Change Since 2000
Home values in ZIP 78731 have decreased 0.1% over the past year (2024). Since 2000, this ZIP has seen +244% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +4.9% | 262 |
| 2021 | +12.7% | 295 |
| 2022 | +20.4% | 355 |
| 2023 | -3.1% | 344 |
| 2024 | -0.1% | 344 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 2,255 business establishments in ZIP 78731, employing approximately 24,680 people with a combined annual payroll of $1,850,666,000.
2,255
Businesses
24,680
Employees
$1.9B
Annual Payroll
18
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Professional, scientific, and technical services | 684 | 30.3% |
| Health care and social assistance | 370 | 16.4% |
| Real estate and rental and leasing | 191 | 8.5% |
| Finance and insurance | 161 | 7.1% |
| Administrative and support and waste management and remediation services | 133 | 5.9% |
| Other services (except public administration) | 127 | 5.6% |
| Retail trade | 105 | 4.7% |
| Construction | 102 | 4.5% |
| Information | 78 | 3.5% |
| Accommodation and food services | 70 | 3.1% |
| Educational services | 51 | 2.3% |
| Wholesale trade | 50 | 2.2% |
| Transportation and warehousing | 46 | 2.0% |
| Arts, entertainment, and recreation | 36 | 1.6% |
| Manufacturing | 25 | 1.1% |
| Management of companies and enterprises | 16 | 0.7% |
| Utilities | 4 | 0.2% |
| Mining, quarrying, and oil and gas extraction | 3 | 0.1% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 78731 vs 78757 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 78757 | Austin, TX | 21,310 | 2.2 mi |
| 78756 | Austin, TX | 7,194 | 2.4 mi |
| 78703 | Austin, TX | 19,690 | 3.7 mi |
| 78759 | Austin, TX | 38,891 | 3.8 mi |
| 78752 | Austin, TX | 18,064 | 4.0 mi |
| 78751 | Austin, TX | 14,385 | 3.7 mi |
| 78705 | Austin, TX | 31,340 | 4.1 mi |
| 78730 | Austin, TX | 7,955 | 4.3 mi |
| 78746 | Austin, TX | 26,928 | 4.3 mi |
| 78712 | Austin, TX | 860 | 4.8 mi |
More ZIP Codes in Travis County
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Frequently Asked Questions
What county is ZIP code 78731 in? ▼
What is the population of ZIP code 78731? ▼
What is the median household income in ZIP 78731? ▼
What is the average home value in ZIP 78731? ▼
What is the demographic makeup of ZIP 78731? ▼
How many businesses are in ZIP code 78731? ▼
What are the main industries in ZIP code 78731? ▼
How have home values changed in ZIP code 78731? ▼
What is the education level in ZIP code 78731? ▼
What is the average commute time in ZIP 78731? ▼
What percentage of residents own vs. rent in ZIP 78731? ▼
What is the poverty rate in ZIP code 78731? ▼
ZIP Code Research Guides
Official Data Resources for Austin, TX
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.