Town Geography

The Town of North Castle comprises approximately 26 square miles and is situated at the narrow waist of Westchester County where the corner of the State of Connecticut extends west toward the Kensico Reservoir. The bulk of the Town's land area lies north of this corner, but the most densely populated part of the Town lies to the south. The Kensico Reservoir separates these two parts of North Castle.
For purposes of the Town Master Plan, the Town has been divided into three distinct geographic areas: North White Plains, Armonk, and the Eastern District (the hamlet area in the Eastern District is referred to as Banksville). North White Plains is the oldest and most urban portion of the Town. Suburban expansion has spread from the western portion of Armonk to the north and east. As in the 1974 Plan, the population center remains the Armonk-Windmill area. The Eastern District still retains its low-density residential character.

In the southern part of the Town, North White Plains and Quarry Heights are physically and economically oriented toward White Plains. The County Airport area and King Street/New King Street are oriented toward Port Chester, Harrison, and Rye. The northern part of the Town is not related directly to any large population center, but many of its residents go to the Town of Bedford and the Village of Mount Kisco to shop and some of the children attend the Bedford Schools.

A number of highways link the Town with neighboring communities and other parts of the New York Metropolitan Region. Route 22 connects the Town with White Plains and Bedford. Route 128 links Armonk with Mount Kisco and Bedford-Banksville Road joins Bedford and Greenwich. King Street (Route 120) provides a connection to Port Chester, Rye Brook, and Chappaqua. Interstate 684 is a major regional north-south route, which connects to other expressways, and parkways, providing access to all parts of the New York Region and beyond. The Bronx River and Merritt Parkways also serve the Town, although the latter does not pass through the Town.