Jarrell is a city in Williamson County, Texas, United States, and is located about 12 miles north of Georgetown, Texas, or about 38 miles (62 km) north of Austin. It was incorporated as a city in 2001. The total population is 984 according to the 2010 census. The total population for Sonterra West is estimated for 2014 to be 3,000, based on the existing 1,200 households in the district.