Main city: Walden
Timezone: Eastern
Phone type: Landline
Operator: Cablevision Lightpath

Walden, the largest of three villages of the Town of Montgomery in Orange County, New York, United States. The population was 6,978 at the 2010 census. It has the ZIP Code 12586 and the 778 telephone exchange within the 845 area code. Walden is part of the Poughkeepsie−Newburgh−Middletown, NY Metropolitan Statistical Area as well as the larger New York−Newark−Bridgeport, NY-NJ-CT-PA Combined Statistical Area. ^source

Area code 845 is a telephone area code straddling the Hudson Valley region of the U.S. state of New York. It serves Rockland, Putnam, Orange, and Ulster counties; most of Dutchess and Sullivan counties, plus parts of Delaware, Greene, and Columbia counties. Area code 845 was created on June 5, 2000 from most of area code 914, which was retained by Westchester County. 845 was the first new area code in New York (outside the New York City metropolitan area and Long Island) since 1954. ^source