Zip Code 78739
Austin, Texas — Travis County
📍 ZIP code 78739 is in Austin, Travis County, Texas.
ZIP code 78739 is located in Austin, Travis County, Texas. It is a zip code in the Central (CST/CDT) Time Zone with an estimated population of 20,850. The area code for ZIP code 78739 is 512.
Quick Answer
Zip code 78739 is in Austin, Texas (Travis County). It has a population of 20,850, median household income of $222,552, and median home value of $699,400.
Population
20,850
Income
$222,552
Home Value
$699,400
Climate
94°F / 39°F
About Zip Code 78739
Zip code 78739 is located in Austin, Texas, within Travis County. Home to approximately 20,850 residents, this area sits at an elevation of 809 ft and falls within the Central (CST/CDT) timezone. The local area code is 512.
The median household income is $222,552 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $699,400, and the cost of living index is 248 (148% above the national average of 100).
Summers average a high of 94°F while winters drop to 39°F. The area receives about 36 in of rain annually. The zip code covers 11.4 square miles of land area.
Key Statistics
20,850
$222,552
$699,400
Central (CST/CDT)
512
809 ft
11.4 sq mi
40.2
7,127
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Compare With Nearby Zip Codes
| Metric | 78739 | 78749 | 78652 | 78748 | 78737 | 78745 |
|---|---|---|---|---|---|---|
| City | Austin, TX | Austin, TX | Manchaca, TX | Austin, TX | Austin, TX | Austin, TX |
| Population | 20,850 | 34,939 | 5,012 | 54,942 | 26,413 | 61,122 |
| Median Income | $222,552 | $113,918 | $118,750 | $107,652 | $164,066 | $84,529 |
| Home Value | $699,400 | $530,900 | $480,600 | $434,100 | $689,200 | $459,100 |
| Cost of Living | 248 | 165 | 161 | 133 | 216 | 128 |
| Median Age | 40.2 | 41.7 | 41.9 | 36.5 | 39 | 37.7 |
Cost of Living
100 = National Average. Austin's cost of living is 148% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
3.1x
Demographics
Zip code 78739 has a population of 20,850 people with a median age of 40.2. There are 7,127 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Austin (78739) population trend from 2010 to 2024
↑ 155.0%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
94°F
39°F
36 in
0 in
Austin experiences hot summers with average highs around 94°F. Winters are mild with lows averaging 39°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$699,400
Median Household Income
$222,552
With 7,127 housing units across 11.4 square miles, 78739 has a housing density of 625 units per square mile. The home price-to-income ratio is 3.1x.
Location & Geography
Latitude
30.1785°
Longitude
-97.8887°
Land Area
11.4 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 78739 (Austin, TX) with distances:
All Zip Codes in Austin, TX
Other zip codes serving Austin:
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ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 78739's $222,552. A way to compare Austin to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 78739 (Austin, TX). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Austin, Texas?
Austin, Texas uses zip code 78739 along with 8 other zip codes.
What county is zip code 78739 in?
Zip code 78739 is located in Travis County, Texas.
What is the population of zip code 78739?
The population of zip code 78739 is 20,850 with a median age of 40.2.
Is 78739 in Austin, Texas?
Yes, zip code 78739 is in Austin, Travis County, Texas. The area code is 512.
Frequently Asked Questions
What city is zip code 78739 in?
Zip code 78739 is in Austin, Texas. It is part of Travis County and uses the Central (CST/CDT) timezone.
What is zip code 78739?
Zip code 78739 is a U.S. postal code in Austin, Texas (Travis County). It has a population of 20,850 and covers 11.4 square miles.
What is the population of zip code 78739?
The population of zip code 78739 (Austin, TX) is 20,850 with a median age of 40.2. There are approximately 7,127 housing units in this area.
What is the median income in zip code 78739?
The median household income in zip code 78739 (Austin, TX) is $222,552 per year. The cost of living index is 248 (100 = national average).
What is the average home price in zip code 78739?
The median home value in zip code 78739 (Austin, TX) is $699,400. The cost of living index is 248 compared to the national average of 100.
What county is zip code 78739 in?
Zip code 78739 is located in Travis County, Texas. The primary city is Austin.
What is the area code for zip code 78739?
Zip code 78739 in Austin, TX uses area code 512. It is located in the Central (CST/CDT) timezone.
Is zip code 78739 a good place to live?
Zip code 78739 (Austin, TX) has a cost of living index of 248 (100 = national average), a median household income of $222,552, and median home values of $699,400. The median age is 40.2. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 78739?
The cost of living index for zip code 78739 (Austin, TX) is 248, where 100 represents the national average. This area is above the national average. Median home value: $699,400.
What schools serve zip code 78739?
Zip code 78739 in Austin, Texas is served by the local school district of Travis County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.