Armonk, New York
Armonk is a hamlet and census-designated place in the town of North Castle, New York, located in Westchester County.As of the 2010 census, Armonk's CDP population was 4,330 and it has a total area of 6.1 square miles, of which 6.0 square miles is land and 0.077 square miles, or 1.54 percent, is water. The corporate headquarters of IBM are situated in Armonk.