Download Our USA 9 Digit Zip Code Database (zip+4)
Introducing ZIP+4 Code Databases from ZIP Code Download - when you need raw power and the most comprehensive list of ZIP Codes anywhere, our ZIP+4 data products are the best candidates for the job.
Why use Zip+4 Codes?
ZIP+4 Codes indicates the delivery route and using ZIP+4 Codes will get your mail there faster and more accurately. Using full ZIP Codes ensure a faster and more accurate mailing.
Zip+4 codes are only provided for an address once it has been validated and proven real. These codes indicate a specificdelivery route, meaning the actual path the mail truck would travel in a single drop-off. ZIP+4 Codes are also assigned to PO Boxes.
Typically, each PO Box gets its own +4 Code, which often matches the box number.ZIP+4 Codes are the last 4 digits of a nine-digit full ZIP Code. A 9-digit ZIP Code is made of two parts. The five digits of the zip code indicate the destination post office or delivery area.
The last 4 digits of the nine-digit ZIP Code represents a specific delivery route within that delivery area. All 9-digits of a zip code assist the USPS in effectively sorting the mail and ensure a faster and more accurate mailing.
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USA - ZIP+4 Data Product Family Details
|Address Primary High Number
|Address Primary Low Number
|Address Primary Odd/Even Code
|Address Secondary Abbreviation
|Address Secondary High Number
|Address Secondary Low Number
|Address Secondary Odd/Even Code
|Base Alternate Code
|Building or Firm Name
|Carrier Route ID
|Congressional District Number
|Government Building Indicator
|LACS Status Indicator
|Municipality City State Key
|Preferred Last Line City State Key
|Urbanization City State Key
|ZIP Add-On High Sector
|ZIP Add-On High Segment
|ZIP Add-On Low Sector
|ZIP Add-On Low Segment
What is a 9 Digit Zip Code or +4 zip code database?
ZIP+4 Codes indicate the delivery route and using ZIP+4 Codes will get your mail there faster and more accurately. Using full ZIP Codes ensure faster and more accurate mailings. They're only provided for an address once it has been validated and proven real. These codes indicate a specific delivery route, meaning the actual path the mail truck would travel in a single drop-off.
Benefits of Full ZIP+4 Codes
There are a number of reasons why ZIP+4 Codes are important for your mailings/shipping or for use on your website. ZIP+4 Codes require validation; that means you know for sure an address is real if it has a ZIP+4 attached to it. Additionally, +4 codes can assist you in getting bulk mailing discounts.
Zip Code Download's Guaranteed Data Integrity
Do you get tired of customers entering false information on your web forms? It's a constant annoyance to have to manually weed out the bad information before processing the data.
With our ZIP Code Database you have a completely accurate source of information. When a user enters information, just check it against the ZIP Code Database. If a match is found, then let the customer continue. Otherwise, you know you've got incorrect information and you can then take care of the issue.
What Does +4 Code Mean?
Zip+4-digits are used to identify a geographic segment within the 5-digit delivery area, such as a city block or a group of apartments or an individual high-volume receiver of mail, or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery. This code is the low end of the range of +4 Codes that pertain to this ZIP Code.
ZIP+4 Codes associated with nondelivery areas are composed of valid ZIP sector numbers and "ND" for the ZIP segment number, for example 12345-12ND. Non-deliverable areas are areas to which the USPS does not deliver mail, such as vacant lots and land that borders railroad tracks. Mailers should not match an address identified as a nondelivery area.
If you absolutely must have numeric characters in the +4 Code column, you may treat "ND" values as "00" (zero zero).
How will your zip code data improve my business?
Our database can guarantee your data integrity. Are you tired of your customers entering incorrect information on your web forms? Let your frustration be a thing of the past, because with the ZIP Code Download data, you have a totally accurate source of information. You can check every users information against the Zip Code Database. You’ll know right away whether or not match is found, and can redirect the customer to enter correct information if they failed to provide accurate information. If you're looking for the most effective solution, get ZIP Code Download's ZIP Code Directory in either the Basic, Premium , or Commercial version. Also available is Canadian Postal Code Data.
ZIPCODE DATA SINCE 2002