There was a combined approximately $340 million of farms and ranches for sale in Colorado's Grand County recently on Land.com. The total of all Grand County land and rural real estate for sale was almost 100,000 acres. Grand County ranks 20th based on the total acres of land for sale of the 64 counties in the Mile High State. Of all land for sale in Grand County, Granby featured the most land for sale. Based on its natural assets, tourism and recreation contribute significant revenue toward Grand County's overall GDP. Grand County is Colorado's 21st largest county (1,869 square miles). It's located in the Northwest Colorado region of Colorado.