Land for sale in Harper County recently totaled approximately $4 million and nearly 3,000 acres. Harper County ranks 77th out of 77 counties in the Cowboy Country for the total acreage of land currently advertised for sale. Of all locations in Harper County with ranches, farms, hunting land and other rural land and acreage for sale, Buffalo featured the most land for sale. Agriculture and farming drives the Harper County economy, with 532 farms recorded in the county during the U.S. Census in 2012. Farming activities in Harper County generate annual revenues of $3 million, the majority of which comes from livestock products. Harper County is the 17th largest county (1,041 square miles) in Oklahoma. It's located in the Red Carpet Country Oklahoma region of the state.