Warren County is a county in the U.S. state of New York. As of the 2020 census, the population was 65,737. The county seat is Queensbury. The county was established in 1813 and is named in honor of General Joseph Warren, an American Revolutionary War hero of the Battle of Bunker Hill. Warren County is part of the Glens Falls, NY Metropolitan Statistical Area, which is also included in the Albany-Schenectady, NY Combined Statistical Area.