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How to Find USPS ZIP Codes
Long gone are the days when postal mail could be addressed with only a person's name, city and state. Since 1963, the U.S. Postal Service has promoted the use of Zone Improvement Plan numbers on mail. These ZIP codes ease mail sorting and delivery. With... More »
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ZIP Code - Wikipedia


ZIP Codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP, an acronym for Zone Improvement Plan, was ...

Zip Codes - USPS.com® - ZIP Code™ Lookup


Look up ZIP Codes™ by street address, city, and state. OR you can find ZIP Codes within a city and state.

USPS - Find a ZIP Code


A ZIP Code is an essential part of the mailing process. We provide your business with several different ways to find a ZIP Code and understand it.

USPS.com® - ZIP Code™ Lookup - USPS Tracking


Postal Store · Stamps · Shipping Supplies · Cards & Envelopes · Collectors ... Look Up a ZIP Code™ ... Look up another ZIP Code™ › · Edit and Search Again ›  ...

Free ZIP code map, zip code lookup, and shipping comparisons


US ZIP codes are a type of postal code used within the United States to help the United States Postal Service (USPS) route mail more efficiently. Some still refer ...

USPS.com® - ZIP Code™ Lookup


Start with a company name and address to find its ZIP Code™. However, this tool can't confirm whether the company is actually located at that address.

USPS - Post Offices by ZIP Code


Postmaster Finder. Post Offices by ZIP Code. Remember! Many discontinued Post Offices are not listed. See FAQs about Postmaster Finder. Action: Enter three  ...

Free USPS Lookup and Boundary Map


The Most Accurate Free USA Zip Code Map Anywhere! Find USPS postal Zip codes by address or click on the map to display the zip code as a boundary map.

Unique ZIP Codes - SmartyStreets


For efficiency, the USPS may assign organizations like these their own unique ZIP Code consisting of a single delivery point. All mail addressed to a unique ZIP  ...