A combined almost 3,000 acres were listed for sale in Oliver County recently; the overall value of all Oliver County land and rural real estate for sale was nearly $6 million. Oliver County ranks 31st based on the total amount of acres of land for sale among the 53 counties in the Rough Rider State. Among cities in Oliver County with land for sale, Center featured the most land for sale. Agriculture and farming drives the Oliver County economy, with 290 farms recorded in the county during the U.S. Census in 2012. Farming activities in Oliver County generate annual revenues of $3 million, most of which is from crops. Oliver County is the 49th biggest county (731 square miles) in North Dakota. It's located in the Central North Dakota region of North Dakota.