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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

en.wikipedia.org/wiki/ZIP_Code

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

tools.usps.com/go/ZipLookupAction!input.action

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

www.usps.com/nationalpremieraccounts/findzipcodes.htm

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

tools.usps.com/go/ZipLookupAction

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

www.unitedstateszipcodes.org/

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

www.viviano.com/store/findazip.asp

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

webpmt.usps.gov/pmt008.cfm

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

www.usnaviguide.com/

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

smartystreets.com/articles/unique-zip-codes

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  ...