Burley () is a city in Cassia and Minidoka counties in southern Idaho, United States. The population was 11,704 at the 2020 census, up from 10,345 in 2010. The city is the county seat of Cassia County. Burley is the principal city of the Burley, Idaho, Micropolitan Statistical Area, which comprises Cassia and Minidoka counties. Burley is the third-largest city in Idaho's Magic Valley region after Twin Falls, and Jerome. Along with nearby Rupert, it forms the bulk of the "Mini-Cassia" area of southern Idaho. History A post office called Burley has been in operation since 1905. The community was named after David Ellsworth Burley, a railroad official. Geography Most of the city lies in Cassia County, with a small portion extending north into Minidoka County. The Snake River forms the border between the two counties. On the north side of the river, Burley is bordered to the east by the city of Heyburn. U.S. Route 30 passes through the center of Burley, leading northeast to Interstate 84 in Heyburn and west to Kimberly. I-84 passes through the northern end of Burley, leading west to the Twin Falls area and southeast to Ogden, Utah. Idaho State Highway 27 passes through the center of Burley, leading north to Paul and south to its terminus in Oakley, while State Highway 81 leads east from Burley to Declo. According to the United States Census Bureau, Burley has a total area of , of which are land and , or 4.71%, are water, referring to the Snake River. Climate Burley experiences a semi-arid climate (Köppen BSk) with cold winters and hot, dry summers. The hottest temperature recorded in Burley was on July 30, 2000, while the coldest temperature recorded was on January 29, 1949 and January 22, 1962. Burley is also host to incredibly high wind speeds. In 2008, a group of local farmers sued the Idaho BLM (Bureau of Land Management) because pesticides that the Burley BLM office sprayed on their lands were carried by a wind storm onto farmers’ lands, effectively destroying crops. Demographics 2010 census As of the census of 2010, there were 10,345 people, 3,644 households, and 2,499 families living in the city. The population density was . There were 3,885 housing units at an average density of . The racial makeup of the city was 77.2% White, 0.4% African American, 1.0% Native American, 0.7% Asian, 17.4% from other races,