Knox County is in Northeast Nebraska. Of the 93 counties in the state, 1,139-square-mile Knox County ranks 12th by size. A recent survey of Land Network data records nearly 1,000 acres of residential land and property for sale in Nebraska's Knox County, which is valued at a combined $1 million. The average price of residential land for sale in Knox County was $324,999. The county has a rural, farm-based economy. Browse all residential land and rural property for sale in Nebraska to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.