THE NEW CASTLE LAND BRIEF
Land in the
Southern New England Coastal Plains and Hills setting.
New Castle town has 23.1 square miles of land in Westchester County. Its Census reference point is in Southern New England Coastal Plains and Hills, within Northeastern Coastal Zone.
Irregular plains and low hills form a coastal transition with glacial lakes and oak-pine woodland. This northeastern landscape is gentler than the mountainous country farther inland.
Regional context: Northeastern Coastal Zone ↗ · Classification at the Census reference point
New Castle and Westchester County
New Castle is associated with Westchester County in the Census boundary data. Start with the parcel’s tax bill to match the property to that jurisdiction, then confirm which government handles its land use.
New Castle by land and water
The Census records 0.35 square miles of water within New Castle, or 1.5% of its total area. It is 12.3 percentage points lower than the 13.9% recorded for Westchester County. This is geographic context; waterfront status and usable land must be checked at the parcel.
For scale, New Castle town has 38.4 times the land area of nearby Millwood CDP (0.6 square miles). These areas describe boundaries, not comparable property prices.

