Round Rock Flag

Round Rock

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 139,055 . Round Rock is currently growing at a rate of 2.73% annually and its population has increased by 15.33% since the most recent census, which recorded a population of 120,572 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. For every 100 females there are 96.6 males.

139.1K
Total Population
3,667
Density (mi²)
3.7K 2.73%
Growth

Round Rock Population

Round Rock Population

Data after 2023 is projected based on recent change

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 (58.31%)

Two or more races (17.17%)

Black or African American (11.19%)

Asian (7.3%)

Other race (5.32%)

Native American (0.51%)

Native Hawaiian or Pacific Islander (0.19%)

Race
Population
Percentage (of total)
White72,47658.31%
Two or more races21,34517.17%
Black or African American13,90511.19%
Asian9,0767.3%
Other race6,6165.32%
Native American6390.51%
Native Hawaiian or Pacific Islander2310.19%

Round Rock Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)