Of 64 counties in the Mile High State, Rio Blanco County is sixth in terms of its size (3,222 square miles). Rio Blanco County is in Northwest Colorado. Colorado's Rio Blanco County includes roughly 16,000 acres of riverfront land for sale based on recent Land Network data. The combined market value of land and rural real estate for sale here was roughly $2 million. Browse all waterfront property for sale in Rio Blanco County on the Land Network to find the marina, lakefront and other recreational property that meets your needs, from waterside land perfect as a retirement investment to existing residential waterfront land and property for hunting, fishing and other outdoor-recreation pursuits! The most common type of land for sale by combined acreage in Rio Blanco County is house.