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ZIP Code 78664
Round Rock, TX, Williamson County
Population
62,060
Land area
16.6sq mi
People per sq mi
3,736
City
Round Rock
ZIP 78664 and nearby ZIP codes
ZIP 78664 at a glance
- ZIP 78664 (Round Rock) is about 32 times as dense as Texas as a whole.
- Households here earn a median of $87,417 a year, 11% more than the Texas figure of $78,476.
- A typical owner-occupied home is valued at $358,200 (26% above Texas) and median rent is $1,692 a month.
Local data for ZIP 78664
Counts from official public data
- Hospitals2
- Emergency Rooms2
- Nursing Homes1
- Schools25
- Colleges1
- Libraries1
- Banks15
- Post Offices1
- Parks28
- Grocery Stores36
- Restaurants256
- Affordable Housing1
- Home Health Agencies6
- Hospice Care3
- Dialysis Centers2
- Community Health Centers2
- Mental Health & Addiction Treatment2
- Private Schools2
- Community Colleges & Trade Schools1
- Toxic Release Facilities1
Housing and community stats
ZIP 78664, American Community Survey 2020-2024
Median household income
$87,417
Poverty rate
10.2%
Median home value
$358,200
Prices -0.1% in a year
Median rent
$1,692/mo
Homeownership
53.7%
Bachelor's or higher
36.4%
Median age
35.1
Average commute
25.6 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
1,841
ZIP Business Patterns 2023
Employees
28,470
$1.6B annual payroll
PPP loans
$141M
1,914 loans
Campaign donations
$195K
41% D, 22% R, 2026 cycle
Environment and hazard risk
ZIP 78664, 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 78664, CDC PLACES estimates
Obesity
35.7%
U.S. 33.3% +2.4 pts
Diabetes
10.5%
U.S. 12.1% -1.6 pts
Smoking
11.9%
U.S. 12.8% -0.9 pts
Uninsured (18-64)
16.8%
U.S. 11.1% +5.7 pts
Frequently asked questions
- What city is ZIP code 78664?
- ZIP code 78664 is in Round Rock, TX (Williamson County).
- What county is ZIP code 78664 in?
- ZIP code 78664 is mostly in Williamson County, Texas.
- How many people live in ZIP code 78664?
- About 62,060 people live in the 78664 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.