The value of all farms and ranches for sale in Laramie County, Wyoming, recently was almost $154 million, representing a total of 8,409 acres of land for sale in Laramie County. Laramie County ranks third out of 23 counties in Wyoming for the combined amount of land currently advertised for sale. Cheyenne featured the most land for sale. From an economic perspective, government and state-level services contribute most to Laramie County's overall GDP. Laramie County is the 15th biggest county (2,687 square miles) in Wyoming. It's located in the Southeast Wyoming region of the state.