Land for sale in Mercer County, Missouri, recently totaled approximately $18 million and around 3,000 acres. Mercer County ranks 100th out of 115 counties in Missouri for the total number of acres of land currently advertised for sale. There were three properties listed as sold in Mercer County through the Land Network Comparable Sales Program. This represented a total value of $135,003. Of all locations in Mercer County with farms, ranches, hunting land and other land for sale, Princeton had the most land for sale. Agriculture and farming drives the Mercer County economy, with 567 farms recorded in the county during the U.S. Census in 2012. Farming activities in Mercer County generate annual revenues of $5 million, the majority of which comes from livestock products. Mercer County is Missouri's 95th biggest county (455 square miles). It's located in the Northwest Missouri region of Missouri.