The overall value of land and rural real estate for sale in Colorado's Summit County recently on Land.com was around $558 million. This represents around 1,000 acres of land and rural real estate for sale in Summit County. Summit County ranks 27th out of 64 counties in the Mile High State for the total acreage of land currently advertised for sale. Among cities in Summit County with ranches, farms, hunting land and other rural land and acreage for sale, Breckenridge featured the most land for sale. Based on its natural assets, tourism and recreation contribute significant revenue toward Summit County's overall GDP. Summit County is Colorado's 55th largest county (619 square miles). It's located in the Northwest Colorado region of Colorado.