NULL Of 254 counties in the Lone Star State, Willacy County ranks 209th by size (784 square miles). Willacy County is in Lower Rio Grande Valley Texas. Recent listings of lakefront land and property for sale in Willacy County, Texas, totals nearly 1,000 acres and a combined market value of around $1 million. The most common type of land for sale by combined acreage in Willacy County is residential property. Browse all waterfront property for sale in Willacy County on the Land Network to find the marina, lakefront and other recreational property that meets your needs, from waterside land perfect as a retirement investment to existing residential waterfront land and property for hunting, fishing and other outdoor-recreation pursuits! The most common type of land for sale by combined acreage in Willacy County is residential property.