Hutto is a city in Williamson County, Texas, United States. It is part of the Austin-Round Rock metropolitan area. The population was 1,250 at the 2000 census; it had grown to 7,401 in the 2005 census estimate and had reached 17,120 by January 2008.
Hutto is located at 30°32′40″N 97°32′43″W / 30.544517°N 97.545198°W / 30.544517; -97.545198 (30.544517, -97.545198), about seven miles (11 km) east of Round Rock and 22 miles (35 km) northeast of Austin.
According to the United States Census Bureau, the city has a total area of 1.0 square miles (2.5 km2), all of it land.