Zip code

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Mr. Zippy, the Post Office Mascot, introduced ZIP Codes to the United States in 1963.

ZIP codes are often used as a way to determine sales tax rates, but this is not their purpose, and tax jurisdictions do not always align neatly with the boundaries of ZIP codes. Geolocation is a better way to find accurate sales tax rates.

ZIP codes were introduced in 1963 as a new way for the United States Post Office (USPS) to accurately determine address locations.

Other new and exciting things from 1963:

  • Chubby Checker
  • lava lamps
  • push-button desktop phones
  • audio cassette tapes.

In 1983, the USPS extended ZIP Codes with the +4 system, moving to optional nine digit codes, adding geographical subsections to the original ZIP Codes.

Other new and exciting things from 1983:

  • Lotus 1-2-3, the first popular spreadsheet software
  • The Final Episode of MASH
  • Minivans


Georgia struggles to collect tax by ZIP Code

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