ZIP code
78731
Austin, TX
78731 covers Austin in Travis County, with 27,136 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 78731. Methodology
ZIP code map of 78731
About ZIP code 78731
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 78731. Not ACS. Methodology
People in 78731
Race
- White20,739
- Black or African American458
- American Indian or Alaska Native79
- Asian2,425
- Native Hawaiian and Pacific Islander9
- Other race587
- Two or more races2,943
Hispanic or Latino (any race): 3,241
Age
- Under 102,780
- 10 to 192,890
- 20 to 293,959
- 30 to 394,028
- 40 to 493,604
- 50 to 593,321
- 60 to 693,054
- 70 to 792,167
- 80 and older1,437
Income and housing in 78731
Education
- High school graduate98.5%
- Bachelor's degree78.5%
- Graduate degree38.9%
Places covering 78731
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Austin100.0%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Travis County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Population history for 78731
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 22,367 | |
| 2006 | 21,197 | |
| 2007 | 21,825 | |
| 2008 | 21,902 | |
| 2009 | 22,619 | |
| 2010 | 22,875 | |
| 2011 | 24,898 | 23,431 |
| 2012 | 24,716 | 23,690 |
| 2013 | 25,575 | 23,360 |
| 2014 | 26,412 | 23,730 |
| 2015 | 26,595 | 24,180 |
| 2016 | 27,401 | 23,610 |
| 2017 | 27,447 | 23,970 |
| 2018 | 27,175 | 24,150 |
| 2019 | 27,298 | 24,550 |
| 2020 | 27,664 | 24,670 |
| 2021 | 26,506 | 24,480 |
| 2022 | 26,314 | 25,040 |
| 2023 | 27,136 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 78731
12 nearest ZIP centroids (any distance)
- 78757Austin2.1 miPop 24,327 · Income $104,946
- 78756Austin2.5 miPop 9,844 · Income $97,149
- 78751Austin3.7 miPop 16,027 · Income $81,657
- 78759Austin3.8 miPop 44,882 · Income $102,799
- 78703Austin3.8 miPop 22,484 · Income $144,637
- 78752Austin4.0 miPop 22,261 · Income $66,404
- 78705Austin4.1 miPop 32,937 · Income $30,336
- 78746Austin4.3 miPop 28,268 · Income $183,028
- 78730Austin4.4 miPop 9,669 · Income $146,450
- 78758Austin4.6 miPop 50,592 · Income $69,019
- 78712Austin4.9 miPop 206 · Income —
- 78722Austin5.1 miPop 6,576 · Income $101,034
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 78731, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 78731 FAQ
- What city is ZIP code 78731 in?
- 78731 is in Austin, TX.
- What county is 78731 in?
- 78731 is in Travis County.
- What is the median household income in 78731?
- The median household income in 78731 is $102,886.
- Which ZIP codes are near 78731?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 78731.