ZIP code
78642
Liberty Hill, TX
78642 covers Liberty Hill in Williamson County, with 24,146 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 78642. Methodology
ZIP code map of 78642

About ZIP code 78642
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 78642. Not ACS. Methodology
People in 78642
Race
- White15,792
- Black or African American421
- American Indian or Alaska Native142
- Asian298
- Native Hawaiian and Pacific Islander24
- Other race1,029
- Two or more races2,679
Hispanic or Latino (any race): 3,679
Age
- Under 103,114
- 10 to 193,168
- 20 to 291,882
- 30 to 393,030
- 40 to 492,952
- 50 to 592,624
- 60 to 692,153
- 70 to 791,090
- 80 and older372
Income and housing in 78642
Education
- High school graduate90.2%
- Bachelor's degree43.0%
- Graduate degree11.1%
Places covering 78642
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.
- Liberty Hill15.7%
- Santa Rita Ranch15.5%
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 County97.4%
- Burnet County2.6%
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
68.8% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 78642
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 7,948 | |
| 2006 | 8,071 | |
| 2007 | 8,986 | |
| 2008 | 9,031 | |
| 2009 | 9,372 | |
| 2010 | 9,549 | |
| 2011 | 8,498 | 10,123 |
| 2012 | 9,175 | 10,650 |
| 2013 | 9,341 | 11,060 |
| 2014 | 9,867 | 11,470 |
| 2015 | 9,879 | 12,640 |
| 2016 | 10,416 | 14,790 |
| 2017 | 11,087 | 16,230 |
| 2018 | 11,817 | 17,620 |
| 2019 | 12,363 | 21,250 |
| 2020 | 13,408 | 23,930 |
| 2021 | 18,347 | 26,570 |
| 2022 | 20,699 | 30,330 |
| 2023 | 24,146 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 78642
12 nearest ZIP centroids (any distance)
- 78605Bertram8.3 miPop 7,632 · Income $81,833
- 78641Leander9.6 miPop 93,399 · Income $131,421
- 78628Georgetown9.8 miPop 44,821 · Income $117,198
- 78633Georgetown11.3 miPop 28,877 · Income $99,967
- 76527Florence12.9 miPop 4,686 · Income $83,533
- 78613Cedar Park14.9 miPop 89,162 · Income $120,829
- 78608Briggs16.3 miPop 454 · Income —
- 78681Round Rock17.0 miPop 58,531 · Income $136,215
- 78645Leander17.1 miPop 15,042 · Income $108,393
- 78717Austin18.0 miPop 36,085 · Income $140,483
- 78654Marble Falls18.2 miPop 19,946 · Income $72,669
- 78726Austin19.2 miPop 14,117 · Income $92,275
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 78642, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 78642 FAQ
- What city is ZIP code 78642 in?
- 78642 is in Liberty Hill, TX.
- What county is 78642 in?
- 78642 is in Williamson County.
- What is the median household income in 78642?
- The median household income in 78642 is $128,086.
- Which ZIP codes are near 78642?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 78642.