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ZIP Code 78681
Round Rock, TX, Williamson County
Population
56,691
Land area
23.2sq mi
People per sq mi
2,445
City
Round Rock
ZIP 78681 and nearby ZIP codes
ZIP 78681 at a glance
- ZIP 78681 (Round Rock) is about 21 times as dense as Texas as a whole.
- The median household income is $137,819, 76% above the Texas median of $78,476.
- A typical owner-occupied home is valued at $497,300 (75% above Texas) and median rent is $1,963 a month.
Local data for ZIP 78681
Counts from official public data
Housing and community stats
ZIP 78681, American Community Survey 2020-2024
Median household income
$137,819
Poverty rate
5.5%
Median home value
$497,300
Prices -0.9% in a year
Median rent
$1,963/mo
Homeownership
73.9%
Bachelor's or higher
58.0%
Median age
39.3
Average commute
23.6 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
1,432
ZIP Business Patterns 2023
Employees
19,609
$1.3B annual payroll
PPP loans
$97.4M
1,389 loans
Campaign donations
$341K
47% D, 13% R, 2026 cycle
Environment and hazard risk
ZIP 78681, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Moderate
Top: hail
Storm events since 1996
876
Countywide, mostly hail
Flood insurance policies
1,949
1.1% of homes, county
July high / Jan low
96° / 38°F
37.1 inches of rain a year
Health statistics
Share of adults in ZIP 78681, CDC PLACES estimates
Obesity
31.7%
U.S. 33.3% -1.6 pts
Diabetes
9.4%
U.S. 12.1% -2.7 pts
Smoking
9.1%
U.S. 12.8% -3.7 pts
Uninsured (18-64)
10.4%
U.S. 11.1% -0.7 pts
Frequently asked questions
- What city is ZIP code 78681?
- ZIP code 78681 is in Round Rock, TX (Williamson County).
- What county is ZIP code 78681 in?
- ZIP code 78681 is mostly in Williamson County, Texas.
- How many people live in ZIP code 78681?
- About 56,691 people live in the 78681 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.