Of 62 counties in the Empire State, Westchester County is 46th in terms of its size (499 square miles). Westchester County is in Southern New York. Recent listings of beachfront homes and property for sale in New York's Westchester County totals roughly 1,000 acres and a combined market value of roughly $16 million. The most common type of land for sale by combined acreage in Westchester County is house. Browse all waterfront property for sale in Westchester 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 Westchester County is house.