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Enter a corporate or residential street address, city, and state to see a specific ZIP Code ™. Enter city and state to see all the ZIP Codes ™ for that city. Enter a ZIP Code ™ to see the cities it covers. A ZIP Code result does not confirm that a person or company is at that address.
Enter an address and receive the ZIP+4 code. Here you will find ZIP Code frequently asked questions. Check online and get the answers quickly. Find publications and guides to assist you in managing your addresses. Retrieve information on Postal abbreviations quickly and easily.
Click here to Look up ZIP Codes™ for corporate and residential addresses. ZIP Code by Address Enter street address, city, and state to see a specific ZIP Code. Note: A ZIP Code result does not confirm that a person or company is at that address.
Also called plus-four codes, 9-digit ZIP Codes, and full ZIP Codes, you can look up USPS ZIP+4 Codes using various tools. Smarty provides some easy-to-use options for single ZIP+4 Code lookups by address, ZIP+4 Codes in bulk (up to millions at a time), and ZIP plus 4 lookup via API.
Looking for how to find your own extended ZIP Code for an address? See our article on ZIP+4 Code™ Lookup tools. ZIP+4™ is the US Postal Service’s extended ZIP code format that includes an additional four digit code. The four extra numbers in the extended ZIP code represent specific delivery routes within the delivery area.
To determine a ZIP +4 Code you will need to know an address. The last four digits are not specific to a city but to a street address or Post Office Box. The first five digits identify the area of the country and the delivery office to which the mail is directed.
Find answers to common USPS questions, including how to look up the last 4 digits of a ZIP Code.