Mills County is in Hill Country North Texas. Of the 254 counties in the Lone Star State, Mills County ranks 213th in terms of size (749 square miles). There is 3,000 acres of residential land for sale in Texas's Mills County based on recent Land Network data. The combined market value of farms and ranches for sale here is about $26 million. The average price of residential acreage for sale in Mills County was $654,127. The county has a rural, farm-based economy. 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.