A geographically indexed representation of postal code boundaries within Westchester County facilitates the efficient sorting and delivery of mail. This visual tool delineates the areas served by each unique postal code, aiding in identifying the specific regions they encompass. As an example, a cartographic depiction might illustrate how postal code 10504 covers the area primarily associated with Armonk.
Accurate delineation of these zones offers substantial advantages. It supports logistical planning for businesses, assists in demographic analysis for research, and enables precise geographic targeting for marketing campaigns. Historically, such mappings evolved from rudimentary postal routes to sophisticated digital geodatabases, reflecting the increasing demand for locational precision in various sectors.