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ZipCode

type ZipCode: Tagged<string, "ZipCode">;

A ZIP (Zone Improvement Plan) Code is a five-digit code assigned by the USPS to a section of a street, a collection of streets, an establishment, structure, or group of post office boxes, for the delivery of mail.

  • The first 3 digits of the ZIP code represent a specific central mail processing facility, which can be used to identify the locality and region of the address, i.e. the city and state.
  • The last 2 digits of the ZIP code represent a specific post office or delivery area.
       90210
      / |⎿__(Post Office)
     /   \
 (State)  \
           \
          (City)

Note that ZIP codes are not truly areas, but rather a group of deliverable addresses, which can and do change over time.

Title​

ZIP Code

See​

ZipCodePlusFour for the extended ZIP code format.