With the 2024 U.S. elections over, now is the perfect time to update your database with the newest legislative information available. Cicero is the most accurate database of elected official and legislative districts data in the world and in early 2024, Melissa acquired Cicero, adding this robust political data tool to our address, identity and data quality offerings.

Our Cicero API offers flexibility for all types of users so that you can power your apps, web forms and websites to fit your needs.

Compared with USPS or other congressional data providers, Cicero’s data is the most accurate and up-to-date. We begin updating as soon as election data becomes available. This way, you receive the new data as soon as it goes into effect. We also monitor for out-of-cycle changes so you’re not waiting for important updates.

Our data is specific to an address-to-district level instead of a ZIP or ZIP+4 level. Why does this matter? Sometimes two districts are represented in a ZIP+4 area, which means that if you don’t have address-to-district matching, you could be giving out inaccurate information. We make sure that each address is correctly assigned to its proper district.

Cicero also tracks changes to elected officials’ contact information and other profile data, updated regularly to keep our data fresh and accurate.

We have coverage on national, state and local levels in multiple countries. You can get a current list by using our coverage resource.

The Cicero API has a wealth of features that you can take advantage of to power your various projects.

The Cicero API enables district matching at the address level - not just the ZIP or ZIP+4 level - which gives you the highest possible accuracy. The API also returns map images that offer a clear visual display of districts and matching results.

The Cicero API goes beyond standard name and contact information collection to provide the most updated social media profiles, websites, photos and biography for elected officials.

The Cicero API includes committee and subcommittee assignments for national and state legislators in the U.S.

To access the full features and data we have to offer, check out the Cicero API. It’s flexible and easy to integrate into your platforms and applications and uses a credits-per-call system.

Basic Cicero congressional district data is also available in these Melissa products:

Additional resources and further reading:

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