Territory Listings By ZIP Code

NISS provides multiple tools to help our member companies prepare and analyze their data.

These listings provide valid Territory Code assignments for each ZIP code recognized as effective by the United States Postal Service for statistical reporting purposes.  Specifically, the Automobile Statistical Plan listings provide the State code (and 2-digit State abbreviation), ZIP Code, Territory code, whether the territory code applies to Private Passenger or Commercial risks or both, County, City, Effective Date and Obsolete Date of the ZIP Code.  The Homeowners Statistical Plan and Fire and Allied Lines module from the Commercial Lines Statistical Plan do not include the Private Passenger versus Commercial distinctions. 

Note that the dates are in "yyyymmdd" format; a date of '99999999' indicates the ZIP Code is still in effect. NISS utilizes ZIP Codes and related territories for obsolete dates back 5 full calendar years for losses.  However, exceptions to the 5-year rule are New York Automobile and all Assigned Risk losses, for which 7 full calendar years are used.  In all cases, however, ZIP Codes that are obsolete prior to the calendar year premiums reported in a Call Year are not considered valid. 

You can view these numerical listings of territory codes in pdf format, or download the Excel files for the added capability to sort and filter by the various columns.  The Automobile codes for Voluntary, Assigned Risks and North Carolina Quarterly are broken into separate files.  Due to the file size, we have made the files available in a compressed format. We suggest you download the .zip files to your computer and view the information there, rather than opening the file directly in your browser. Opening it from our web site may take some time, due to the file size.

Automobile Statistical Plans (All States) 

Homeowners Statistical Plan 

Commercial Lines Statistical Plan

Please Note: The Zip/Territory listings are updated every 2 months, in conjunction with updates received from the United States Postal Service (USPS). File names include a month and year to represent the most current update. For instance, the file name "Homeowners, Mobilehome & Dwelling 0425.xls" indicates the USPS updated the file in April, 2025.

Also please note that if NISS announces regulatory changes to territories, you will want to be sure to use your old territory codes on losses occurring prior to any changes.  However, these ZIP/territory lists will only contain the most current codes. 

Fast Track Utility

The NISS Fast Track Utility is a resource designed for two purposes. The first is to help companies that report Fast Track data to NISS review and verify their data prior to submission. These companies can find a database with their Fast Track historic data loaded in their Company Correspondence page. 

The second purpose is for companies that purchase the Fast Track Reports from NISS. This is a blank database for a company’s individual use, where they can import their company data into the database and compare it to industry data. The blank utility and documentation can be downloaded below.

View Fast Track Utility Documentation
Download Fast Track Utility & Documentation (Zip File)

If you are interested in purchasing Fast Track reports or would like more information on this helpful database, please contact us at questions@niss-stat.org.