Fayette County is in Pittsburgh & Countryside Pennsylvania. Of the 67 counties in the Keystone State, 510,918-acre Fayette County ranks 24th by size. The most common type of land for sale by combined acreage in Fayette County is residential property. Browse all waterfront property for sale in Fayette 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!