Why isn't my ZIP Code being recognized?

If your ZIP Code isn't being recognized by ENVISION, it may be because it's a point-level ZIP.

Five-digit ZIP codes are defined by the USPS and can be represented visually in two ways:

  1. Area ZIP codes
    • Represented by polygons
    • Can contain households, group quarters and businesses
  2. Point-level ZIP codes
    • Represented by points
    • Typically used for Post Offices or large office buildings
    • Do not contain any households or population.

A reference file downloads a file listing all point level ZIP codes and all Area ZIP codes is available.