Of 105 counties in the state, Wallace County ranks 22nd by size (913 square miles). Wallace County is in High Plains Kansas. Kansas's Wallace County has nearly 1,000 acres of residential land and property for sale based on recent Land Network data. The combined market value of ranches, farms, hunting land and other rural land and acreage for sale here was nearly $400,000. Browse all residential property and land for sale in Wallace County 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. The most common type of land for sale by combined acreage in Wallace County is farms.