Adams County is located in Colorado. The county covers 1,198 square miles (766,611 acres), which represents less than one percent of the state total. Of Colorado's 64 counties, Adams County ranks fifth in terms of the size of its population (491,337, according to 2015 Census estimates). Recent Lands of America data places the average value of ranches, land, farms and other recreational acreage for sale in Adams County at $5,798 per acre. The average listing price was $1,013,305 (the most expensive listing being for $5.8 million) and the median land-parcel size was 40 acres. Land for sale in Adams County totaled 3,320 acres and $19.3 million in overall land value, with the city of Byers featuring the most land for sale in the county. Farmland was the most common type of land for sale in Adams County.