Martin County is in South Plains Texas. Of the 254 counties in the Lone Star State, Martin County ranks 135th in terms of size (586,049 acres). Recent listings of residential land for sale in Martin County, Texas, totals around 1,000 acres and a combined market value of nearly $6 million. The most common type of land for sale by combined acreage in Martin County is undeveloped land. The average price of residential acreage for sale in Martin County was $350,011. 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.