Cheyenne County is located in the western part of the state of Nebraska. It covers an area of approximately 2,500 square miles and is known for its vast plains and agricultural land. The county seat is Sidney, which serves as the main hub for local government and services. Established in 1870, Cheyenne County has a rich history tied to the westward expansion of the United States. The county is home to several historical sites, including the Oregon Trail, which played a significant role in the migration of settlers during the 19th century. Today, it offers a mix of rural charm and community events.