Source Information

• ZIP code data source information

  Primary source:

  Wolfram|Alpha Knowledgebase, 2024.

  Background sources and references:

  • Demographics USA 2008: Zip Edition. Trade Dimensions, 2008.
  • United States Census Bureau. ZIP Code Statistics. »
  • United States Postal Service. Zip Code Lookup. »
  • The Wikimedia Foundation, Inc. Wikipedia. »
  • ZIP Code Download. ZIP Code Directory. »
  • Zip-Codes.com. ZIP Code Database, Maps, and Boundary Data. »

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