The drive from Marble Falls to Round Rock is a 40-mile journey heading east and south. You will take TX-29 East to Georgetown and then merge onto I-35 South to reach Round Rock. This route is a common commute for those living in the Hill Country and working in the Austin metro area. Expect the drive to take about 50 minutes, though traffic on I-35 can significantly increase this time. Round Rock is famous for its historic downtown and the Round Rock Donuts.
Total Distance: 65 km driving distance; 55 km straight-line air distance.
Try to avoid I-35 during peak hours to save significant time.
Any time of year, but avoid rush hour traffic on I-35.