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Armonk is a hamlet  located in the town of North Castle in Westchester County, New York. As of the 2010 census, the CDP population was 4,330.[1]

Armonk is home to the global headquarters of information technology company IBM and bond insurer MBIA, and the American headquarters of reinsurer Swiss Re.

The Byram Hills Central School District serves North Castle, New Castle, Mount Pleasant, and Bedford . All of the schools in the district are located in Armonk. The district has one secondary school, Byram Hills High School , one middle school, H. C. Crittenden Middle School , and two primary schools, Wampus Elementary School  and Coman Hill Elementary School (K-2).[6] The "Authentic Science Research Program" in the High School has led to many Intel Science Competition Finalists and Semi-Finalists.

Armonk plays host to several events that take place annually. Most notably is the Armonk Outdoor Art Show, a fine art and fine crafts juried show sponsored by Friends of the North Castle Public Library, Inc., where nearly two hundred artists working in various media gather in IBM Park to show and sell their work to patrons. 

The Lions Club sponsors a Fol-De-Rol, held during either the first or second weekend in June. The three-day event takes place in Wampus Brook Park and by Wampus Elementary School. It is very similar to a country fair in that it draws local businesses and artisans to come set up tents and sell their merchandise.

The latest Armonk tradition is Frosty Day. A parade goes down Main Street, onto Bedford Avenue, past the "Village Square" mentioned in the song, "Frosty the Snowman", to Wampus Brook Park for a gala holiday lighting ceremony.

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