Saint Tammany Parish is in Greater New Orleans Louisiana. Of the 64 counties in the Creole State, 1,095-square-mile Saint Tammany Parish ranks 12th by size. The most common type of land for sale by combined acreage in Saint Tammany Parish is undeveloped land. Browse all waterfront property for sale in Saint Tammany Parish 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!