Round Rock, Texas

Round Rock, Texas
Dell Diamond baseball stadium in Round Rock
Motto: 
"Sports Capital of Texas"
Interactive map of Round Rock, Texas
Round Rock
Location within Texas
Round Rock
Location within the United States
Coordinates: 30°31′37″N 97°39′50″W / 30.52694°N 97.66389°W / 30.52694; -97.66389
Country United States
State Texas
CountiesWilliamson, Travis
Incorporated1913
Government
 • TypeCouncil–manager
 • City councilCraig Morgan, mayor
 • City managerBrooks Bennett
Area
 • Total
38.00 sq mi (98.41 km2)
 • Land37.64 sq mi (97.48 km2)
 • Water0.36 sq mi (0.93 km2)
Elevation
735 ft (224 m)
Population
 (2020)
 • Total
119,468
 • Estimate 
(2021)
123,876
 • RankUS: 212th
TX: 28th
 • Density3,174/sq mi (1,225.6/km2)
Time zoneUTC−6 (Central (CST))
 • Summer (DST)UTC−5 (CDT)
ZIP Codes
78664, 78665, 78680–78683
Area code(s)512 and 737
FIPS code48-63500
GNIS feature ID2411005
Websitewww.roundrocktexas.gov

Round Rock is a city in Williamson and Travis counties in the U.S. state of Texas. The population was 119,468 at the 2020 census. It is part of the Greater Austin metropolitan area.

The city straddles the Balcones Escarpment, a fault line in which the areas roughly east of I-35 are flat and characterized by having black, fertile soils of the Blackland Prairie, and the west side of the Escarpment, which consists mostly of hilly, karst-like terrain with little topsoil and higher elevations and which is part of the Texas Hill Country. Located about 20 miles (32 km) north of Austin, Round Rock shares a common border with Austin near State Highway 45.

Round Rock is the international headquarters of Dell, which employs about 16,000 people at its Round Rock facilities. Retailers in Round Rock include IKEA, Premium Outlets, and the mixed-use La Frontera center.