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Round Rock city, TX

ZIP 78665 — People & Community

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

Upper Middle ClassLarge CommunityLow Snow AreaRemote Work Hub

Demographics, education attainment, health access, and community lifestyle

Population & Demographics in 78665

78665 has a population of 64,087 with a median age of 36.1 yrs (50.1% male).

Race & Ethnicity
White
55.0%-11% vs US avg
x
Black
11.1%-11% vs US avg
x
Asian
10.3%+74% vs US avg
x
Hispanic
23.5%+26% vs US avg
x
Age Groups
0–17
26.4%+20% vs US avg
x
18–64
63.1%+2% vs US avg
x
65+
10.4%-36% vs US avg
x
Education
Less than HS
2.9%-74% vs US avg
x
High school
16.2%-38% vs US avg
x
Some college
29.2%+1% vs US avg
x
Bachelor's+
51.6%+53% vs US avg
x
Marital Status
Married
59.3%+23% vs US avg
x
Never married
27.3%-19% vs US avg
x
Divorced
9.9%-4% vs US avg
x
Widowed / Separated
3.6%
x
Diversity Index
62/100

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

Social & household profile

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

Poverty Rate
4.8%-58% vs US avg
x
Foreign Born
30.8%+121% vs US avg
x
Veterans
8.2%+37% vs US avg
x
Disability
11.0%-18% vs US avg
x
Single Parent
8.1%+0% vs US avg
x
Recent Births
59.7%+929% vs US avg
x
Top ancestry
GermanEnglishIrish

Health & Community Indicators in 78665

Poverty Rate
4.8%-58% vs US avg
x
Veterans
8.2%+37% vs US avg
x
Foreign Born
30.8%+121% vs US avg
x
Single Parent
8.1%+0% vs US avg
x
Disability
11.0%-18% vs US avg
x
Uninsured
6.4%-20% vs US avg
x
SNAP Benefits
1.8%-84% vs US avg
x
Private School
0.6%-95% vs US avg
x
Recent Births
59.7%+929% vs US avg
x
Smartphone Only
0.0%
x

People & Community key statistics

Population statistics
Population
Population64,087
Median age36.1
Poverty rate4.8%
Demographics statistics
Demographics
White55.0%
Hispanic23.5%
Black11.1%
Asian10.3%
Foreign-born30.8%