Bloomingdale is a hamlet located in the town of St. Armand, Essex County in the State of New York in the United States of America. It is located at 44°24′28″N 74°5′15″W / 44.40778°N 74.0875°W / 44.40778; -74.0875. The United States Postal Service has assigned Bloomingdale the ZIP Code 12913.