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Round Rock city, TX

ZIP 78664 — People & Community

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Middle ClassLarge CommunityLow Snow AreaRemote Work Hub

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 78664

78664 has a population of 62,272 with a median age of 34.8 yrs (47.3% male).

Race & Ethnicity
White
52.1%-15% vs US avg
x
Black
15.0%+21% vs US avg
x
Asian
6.1%+3% vs US avg
x
Hispanic
35.4%+89% vs US avg
x
Age Groups
0–17
22.5%+2% vs US avg
x
18–64
67.5%+9% vs US avg
x
65+
10.0%-39% vs US avg
x
Education
Less than HS
9.8%-12% vs US avg
x
High school
22.6%-14% vs US avg
x
Some college
33.0%+14% vs US avg
x
Bachelor's+
34.6%+3% vs US avg
x
Marital Status
Married
47.5%-1% vs US avg
x
Never married
37.8%+12% vs US avg
x
Divorced
11.4%+11% vs US avg
x
Widowed / Separated
3.3%
x
Diversity Index
58/100

Higher = more diverse (Simpson index from race/ethnicity)

Social & household profile

Poverty, nativity, veterans, disability, family structure, and births (ACS).

Poverty Rate
10.5%-9% vs US avg
x
Foreign Born
39.1%+181% vs US avg
x
Veterans
7.0%+17% vs US avg
x
Disability
10.9%-19% vs US avg
x
Single Parent
10.2%+26% vs US avg
x
Recent Births
44.3%+664% vs US avg
x
Top ancestry
GermanEnglishIrish

Health & Community Indicators in 78664

Poverty Rate
10.5%-9% vs US avg
x
Veterans
7.0%+17% vs US avg
x
Foreign Born
39.1%+181% vs US avg
x
Single Parent
10.2%+26% vs US avg
x
Disability
10.9%-19% vs US avg
x
Uninsured
15.3%+91% vs US avg
x
SNAP Benefits
9.2%-22% vs US avg
x
Private School
0.6%-95% vs US avg
x
Recent Births
44.3%+664% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population62,272
Median age34.8
Poverty rate10.5%
Demographics statistics
Demographics
White52.1%
Hispanic35.4%
Black15.0%
Asian6.1%
Foreign-born39.1%