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Armonk is a bucolic northeastern Westchester hamlet in the Town of North Castle, sharing a border with Connecticut, and 39 miles north of Manhattan. What had been a mere stagecoach stop in the eighteenth century, has grown and flourished over the years to become one of the county’s most exclusive bedroom communities, managing to retain a rural feeling with many of its houses sited on large tracts of land.

The hamlet became Armonk in the mid-1800s, after the name given it by the Siwanoy Native Americans of the Wappinger Confederacy. It had previously been called Mile Square, where a local barn served as a temporary holding pen for Major John André, the notorious spy and co-conspirator of Benedict Arnold, before his hanging in 1780 in Tappan, N.Y.

The hamlet of Armonk has less than 5,000 residents within its 6 square miles of rolling hills. With its handy location in close proximity to Route 22 and I-684, Armonk affords its residents easy accessibility to just about anywhere they want to go, including being only one exit away from the Westchester County Airport, a 15 minute drive brings you to White Plains, and the bustling financial centers of Stamford and Greenwich are within 30 minutes. This convenience has also attracted several large corporations to the area such as the headquarters of IBM, M.E. Sharpe, and Swiss Re.

There is a bustling, walkable village center complete with practical as well as specialty shops and diverse restaurants, anchored by a DeCicco & Sons Market. Surrounding the area is a wide variety of scenic parks, condos, single and attached homes, and farther from town center, gated communities and country clubs.

Town Facts

  • Hamlet of Armonk in the Town of North Castle
  • Incorporated in 1788
  • Local Highways: I-684, Bronx River Parkway
  • Distance to NYC: 35 miles
  • Area: 6 sq miles
  • Population: 4,381 (2020 est.)


With no train station in Armonk, commuters drive 10 minutes to use the North White Plains Train Station on Metro North’s Harlem Line, and reach Grand Central Terminal within an hour.


The North White Plains Train Station has a few parking lots (Parking Map):
  • LAZ Parking Commuter Lot: 500 spaces (Permit Required; currently a Waitlist).
    • Daily Meters are first come/first serve.
    • Metered Parking in effect Mon-Friday 6:00 am to Midnight. Saturday and Sundays are Free.
  • Town of North Castle Commuter Lot: 100 spaces for town residents only. (Permit Required; currently a Waitlist).
  • Westchester County Dept. of Parks, Recreation & Conservation Commuter Lot: 892 spaces (Permit Required; currently a Waitlist).
  • City of White Plains Commuter Lot: 230 assigned spaces (Permit Required, currently a Waitlist); Metered Parking (Map).




  • The Westchester County Airport is one exit away in nearby White Plains, offering convenient service via major air carriers to points throughout the United States.



The Byram Hills Central School District is a top-rated, nationally recognized district serving students from Armonk and areas of Bedford, Chappaqua and Pleasantville. It has been awarded the National “School of Excellence” by the U. S. Department of Education, and offers its students a productive student to teacher ratio of 11 to 1. For a full school report on the Byram Hills CSD, please visit the New York State Education Department.




Market profiles are prepared in collaboration with real estate agents who either live or work in the town they write about.


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