ZIP code
78729
Austin, TX
78729 covers Austin in Williamson County, with 30,440 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 78729. Methodology
ZIP code map of 78729

About ZIP code 78729
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 78729. Not ACS. Methodology
People in 78729
Race
- White19,181
- Black or African American2,487
- American Indian or Alaska Native197
- Asian3,720
- Native Hawaiian and Pacific Islander14
- Other race1,795
- Two or more races4,435
Hispanic or Latino (any race): 6,435
Age
- Under 103,722
- 10 to 192,938
- 20 to 296,058
- 30 to 396,846
- 40 to 494,320
- 50 to 593,289
- 60 to 692,811
- 70 to 791,322
- 80 and older523
Income and housing in 78729
Education
- High school graduate97.0%
- Bachelor's degree61.2%
- Graduate degree21.1%
Places covering 78729
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.
- Austin52.8%
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.
- Williamson County92.3%
- Travis County7.7%
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
47.2% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 78729
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 22,490 | |
| 2006 | 22,318 | |
| 2007 | 22,954 | |
| 2008 | 23,193 | |
| 2009 | 24,581 | |
| 2010 | 25,330 | |
| 2011 | 27,024 | 25,728 |
| 2012 | 28,228 | 25,930 |
| 2013 | 26,906 | 25,970 |
| 2014 | 28,786 | 26,280 |
| 2015 | 29,386 | 26,820 |
| 2016 | 30,151 | 26,080 |
| 2017 | 29,434 | 26,860 |
| 2018 | 29,315 | 27,110 |
| 2019 | 28,644 | 26,900 |
| 2020 | 27,707 | 25,950 |
| 2021 | 30,907 | 24,610 |
| 2022 | 31,309 | 24,070 |
| 2023 | 30,440 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 78729
12 nearest ZIP centroids (any distance)
- 78750Austin2.1 miPop 29,322 · Income $123,722
- 78717Austin2.2 miPop 36,085 · Income $140,483
- 78727Austin3.0 miPop 30,894 · Income $107,194
- 78759Austin3.8 miPop 44,882 · Income $102,799
- 78728Austin4.0 miPop 26,776 · Income $74,048
- 78613Cedar Park5.1 miPop 89,162 · Income $120,829
- 78726Austin5.3 miPop 14,117 · Income $92,275
- 78758Austin5.6 miPop 50,592 · Income $69,019
- 78681Round Rock6.3 miPop 58,531 · Income $136,215
- 78753Austin7.1 miPop 58,449 · Income $62,334
- 78664Round Rock7.3 miPop 62,272 · Income $85,919
- 78757Austin7.4 miPop 24,327 · Income $104,946
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 78729, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 78729 FAQ
- What city is ZIP code 78729 in?
- 78729 is in Austin, TX.
- What county is 78729 in?
- 78729 is in Williamson County.
- What is the median household income in 78729?
- The median household income in 78729 is $81,589.
- Which ZIP codes are near 78729?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 78729.