The total value of land for sale in Nebraska's Johnson County recently on Land.com was around $5 million. This represents 1,000 acres of land and rural real estate for sale in Johnson County. Johnson County ranks 50th out of 93 counties in the Beef State for the combined amount of land currently advertised for sale. Among cities in Johnson County with land for sale, Tecumseh had the most land for sale. From an economic perspective, government and state-level services contribute most to Johnson County's overall GDP. Johnson County is Nebraska's 90th biggest county (376 square miles). It's located in the Southeast Nebraska region of the state.