Newcastle is the county seat of Weston County, WY. Western traditions and manners are alive and well in Newcastle, WY. It is a town of tradition, gathering each summer for the Weston County Fair and Junior Rodeo; which dates back over 60 years. Most of the residents know each other and the community gathers for important events like a Friday night football game or a parade down Main Street. Thousands of acres of public land surround Newcastle. Mule deer, whitetail deer, and turkey are very prevalent in the area.