Round Rock

County:: Williamson County
County Seat:: No
Area (mi²):: 37.918
State:: Texas

Round Rock is a city located in Williamson County, Texas. Round Rock has a 2025 population of 136,977. Round Rock is currently growing at a rate of 2.46% annually and its population has increased by 13.63% since the most recent census, which recorded a population of 120,549 in 2020.

The average household income in Round Rock is $125,545 with a poverty rate of 7.66%. The median age in Round Rock is 36.2 years: 35.2 years for males, and 36.9 years for females.

Demographics

The racial composition of Round Rock includes 58.31% White, 11.19% Black or African American, 7.3% Asian, 5.32% other race, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	72,476	58.31%
Two or more races	21,345	17.17%
Black or African American	13,905	11.19%
Asian	9,076	7.3%
Other race	6,616	5.32%
Native American	639	0.51%
Native Hawaiian or Pacific Islander	231	0.19%

Round Rock Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Round Rock's average per capita income is $59,136. Household income levels show a median of $97,187. The poverty rate stands at 7.66%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.

Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.

Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.

Name	Median	Mean
Married Families	$139,388	$166,373
Families	$119,382	$143,772
Households	$97,187	$125,545
Non Families	$62,381	$81,682

$59,136

Average Income

$97,187

Median Household Income

7.66%

Poverty Rate