Of 62 counties in the Empire State, Warren County ranks 24th in terms of size (931 square miles). Warren County is in Northern New York. New York's Warren County includes 1,000 acres of riverfront land and property for sale based on recent Land Network data. The combined market value of farms, rural land, hunting land and other land for sale here was roughly $900,000. Browse all waterfront property for sale in Warren 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 Warren County is house.