Of 64 counties in the Rocky Mountain State, Pitkin County ranks 44th in terms of size (973 square miles). Pitkin County is in South Central Colorado. A recent survey of Land Network data totals roughly 4,000 acres of ranches for sale in Colorado's Pitkin County, which is valued at a combined $150 million. Browse all Pitkin County ranches for sale on the Land Network to find the ranch that's right for your business or commercial needs, from the sprawling legacy ranch to unbelievable residential ranch for your second home, investment property or retirement nest egg. The most common type of land for sale by combined acreage in Pitkin County is residential property.