Montgomery County is in Capital Maryland. Of the 24 counties in the Monumental State, 506-square-mile Montgomery County ranks 12th by size. The most common type of land for sale by combined acreage in Montgomery County is house. Browse all waterfront property for sale in Montgomery 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!