The value of farms and ranches for sale in Johnson County, Nebraska, recently on Land.com was almost $4 million. This represents nearly 1,000 acres of ranches, farms, hunting land and other rural land and acreage for sale in Johnson County. Johnson County ranks 54th out of 93 counties in the state for the combined amount of land currently advertised for sale. Among cities in Johnson County with farms and ranches for sale, Tecumseh had the most land for sale. Government and state-level services are the main economic drivers in Johnson County. Johnson County is the 90th biggest county (376 square miles) in Nebraska. It's located in the Southeast Nebraska region of Nebraska.