This product provides a listing of Congressional Districts by 9-digit ZIP Code for the current 118th Congress.
Sometimes a regular 5-digit ZIP Code spans more than one Congressional District, so using the 9-digit ZIP+4 adds a level of precision not otherwise found. The foundation of this product is true commercial grade ZIP+4 data. From there we utilize multiple sources – including our own plotting when necessary – to obtain a complete and accurate 9-digit ZIP Code to Congressional District relationship. Plus, we add some extras such as congressional representatives by name, primary county, primary city, and more.
Comma-Separated Values (CSV) Text File
Official U.S. Postal Service five digit ZIP Code
2-digit district number. Notes: ‘98’ is used for U.S. territories such as Guam and the U.S. Virgin Islands which have congressional delegates, but not true representatives. Also, if there is only one district for a state (due to low population, such as Alaska), the district ‘99’ will be used.
Primary City for this ZIP Code
Primary county for this ZIP Code.
Official U.S. Postal Service State Abbreviation
Rank given to ZIPs with more than one district (primary, secondary, etc)
Representative's first name may include middle initials.
Representative's last name may include a suffix such as ‘Jr.’.
Representative's nick name, if applicable.
Contains ‘Y’ if the seat is currently vacant, otherwise ‘N’.
