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  1. ZIP Code - Wikipedia

    The ZIP Code system (an acronym for Zone Improvement Plan[1]) is the system of postal codes used by the United States Postal Service (USPS). The term ZIP was chosen to suggest that …

  2. Introduction of the ZIP Code - U.S. Postal Facts

    The first number in the five-digit ZIP Code represents a general geographic area of the nation, “0” in the east, moving to “9” in the west. The next two numbers represent regional areas, and the …

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  3. ZIP Code Meaning & History: Everything You Need to Know

    Jun 11, 2025 · What is a ZIP Code? A ZIP Code is a smart system that keeps America’s mail moving efficiently. It was created by the United States Postal Service (USPS) in 1963. ZIP …

  4. ZIP CODE Definition & Meaning - Merriam-Webster

    The meaning of ZIP CODE is a number that identifies a particular postal delivery area in the U.S..

  5. This Is What ZIP Code Really Means | Trusted Since 1922

    Feb 15, 2023 · The U.S. Postal Service started using the current ZIP code system in 1963. This is what each digit means and how they get mail into your mailbox.

  6. ZIP Code Meaning: What the Numbers Mean & How They Work

    Jun 21, 2025 · ZIP codes are structured to provide a systematic way of identifying geographic locations for efficient mail delivery. The standard ZIP code consists of five digits, while an …

  7. ZIP CODE Definition & Meaning | Dictionary.com

    to provide or mark with a zip code. Zip-code all mail. Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.