The overall value of land for sale in Colorado's Broomfield County recently on Land.com was nearly $20 million. This represents approximately 1,000 acres of farms, ranches, and rural real estate for sale in Broomfield County. Broomfield County ranks 61st out of 64 counties in the Rocky Mountain State for the total acreage of land currently advertised for sale. Broomfield featured the most land for sale. Broomfield County is the 64th largest county (33 square miles) in Colorado. It's located in the Front Range Colorado region of Colorado.