Round Rock is a city located in Texas. With a 2020 population of 134,255, it is the 27th largest city in Texas and the 207th largest city in the United States. Round Rock is currently growing at a rate of 2.10% annually and its population has increased by 34.41% since the most recent census, which recorded a population of 99,887 in 2010. Spanning over 37 miles, Round Rock has a population density of 3,707 people per square mile.
The average household income in Round Rock is $97,997 with a poverty rate of 7.73%. The median rental costs in recent years comes to $1,238 per month, and the median house value is $230,100. The median age in Round Rock is 33.9 years, 32.9 years for males, and 35.1 years for females. For every 100 females there are 98.1 males.