zipcodes.md

Zip + Post codes

What are some interesting input tests for zipcodes?

US Zipcodes

• 00501
  • Lowest ZIP
  • Holtsville, NY
  • Also detects fields that might truncate leading zeros
• 06390
  • NY ZIP that Belongs in Connecticut?
  • Fishers Island, NY.
• 09603
  • Armed Forces Europe, City is APO, State is AE
• 12345
  • General Electric’s Unique ZIP
  • Schenectady, NY.
• 20252
  • Smokey Bear’s Personal ZIP
  • Washington, DC.
• 22313
  • P.O. box only ZIP
  • Alexandria, Virginia.
• 99530-9998
  • ZIP for Santa Claus in the north pole.
  • Anchorage, AK.
• 99950
  • Highest ZIP
  • Ketchikan, AK

Non-US Postal Codes

• H0H 0H0
  • Post Code for North Pole
  • North Pole, Canada
• LL61 5QH
  • Post Code for Llanfair­pwllgwyngyll­gogery­chwyrn­drobwll­llan­tysilio­gogo­goch
  • Sometimes abbreviated to Llanfairpwllgwyngyll
  • Wales, UK
• 10200
  • Krung Thep Maha Nakhon, Thailand
• SW1A 2AA
  • Downing Street in London, England

Zipcode Formats

• 5 digits (ZIP)
  • 99530
• 9 digits (ZIP + 4)
  • 995309998
• 10 digits (ZIP + "-" + 4)
  • 99530-9998