Juniata County is in Alleghenies & Valleys Pennsylvania. Of the 67 counties in the Keystone State, Juniata County is 57th in terms of its size (251,849 acres). The most common type of land for sale by combined acreage in Juniata County is house. Browse all waterfront property for sale in Juniata 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!