There was a combined nearly $4 million of land and rural real estate for sale in Harper County recently on Land.com. The total of all Harper County land for sale was almost 2,000 acres. Harper County ranks 76th in Oklahoma for the combined amount of land currently advertised for sale. Among cities in Harper County with farms, ranches, and rural real estate 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 Oklahoma.