Cassia County, Idaho, established on February 20, 1879, and named after Cassia Creek, is a rural county in the south-central part of the state with Burley as its county seat since 1918. Spanning 2,580 square miles, it has a population of approximately 24,655 as of 2023, with a diverse demographic including a significant Hispanic community (28.9%). The county’s economy thrives on agriculture, producing crops like sugar beets, potatoes, and wheat, supported by irrigation from the Snake River and major employers like Amalgamated Sugar and McCain Foods. Historically, the area was home to the Shoshone and Paiute tribes and saw pioneer traffic along the Oregon and California Trails. Key developments include the Oregon Short Line railroad in the 1880s and the Minidoka Dam’s completion in 1906, which boosted farming. Cassia County hosts cultural events like the Idaho Regatta and Spudman Triathlon, while landmarks like City of Rocks National Reserve draw tourists. Despite economic challenges, such as factory closures, the county remains a vital agricultural and recreational region.