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

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