NULL Of 254 counties in the state, Madison County ranks 242nd in terms of size (472 square miles). Madison County is in Brazos Texas. Recent listings of riverfront land and property for sale in Madison County, Texas, totals around 1,000 acres and a combined market value of almost $600,000. The most common type of land for sale by combined acreage in Madison County is undeveloped land. Browse all waterfront property for sale in Madison 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 Madison County is undeveloped land.