Dimmit County is in Rio Grande Plains Texas. Of the 254 counties in the Lone Star State, Dimmit County ranks 31st in terms of size (1,334 square miles). The total value of almost 2,000 acres of residential land recently listed for sale in Dimmit County, Texas, was around $9 million. The average price of residential acreage for sale in Dimmit County was $905,200. Browse all residential land and rural property for sale in Texas 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.