Round Rock is not only one of the fastest growing cities in America (8.2% growth in 2008 alone!), but it has also been ranked among the top ten best American small cities in which to live and offers some of the best job growth in the United States. The outstanding Rock Rock Independent School District also ranks among the best in the state of Texas with 12 exemplary and 11 recognized schools! Looking for the perfect city in the Austin metroplex for your family? Trying to find an affordable home in an excellent school district? Start by searching available Round Rock homes in the 78664, 78665, and 78681 zip codes below using the Red Home Realty interactive map and search tool.