NY 128 soon enters the town of New Castle, where it changes names to Armonk Road on its way north, remaining a two-lane residential street. The route winds its way north via several bends, soon becoming a wooded roadway through New Castle.
NY 128 enters New Castle and becomes Armonk Road on its way north, winding through the town with multiple bends. It eventually transforms into a wooded roadway in New Castle.