Garfield is a census-designated place in Travis County, Texas, United States. As of the 2020 census, the CDP population was 1,825. Garfield is located 12 miles southeast of downtown Austin. According to the United States Census Bureau in 2000, the CDP has a total area of 13.9 square miles, of which 13.7 square miles was land and 0.2 square mile was …Garfield is a census-designated place in Travis County, Texas, United States. As of the 2020 census, the CDP population was 1,825. Garfield is located 12 miles southeast of downtown Austin. According to the United States Census Bureau in 2000, the CDP has a total area of 13.9 square miles, of which 13.7 square miles was land and 0.2 square mile was water. Prior to the 2010 census, part of the CDP was annexed to the city of Austin, reducing its area to 12.2 square miles, of which 12.0 square miles was then land and 0.2 square miles was water.