With the most accurate and frequent update schedule, USgeocoder brings you the most precise state legislative by zip code district data you can find for 2024 state legislative district files.

A few companies offer "State Legislative District by 5 Digit Zip Code" and "State Legislative District by 9 Digit Zip Code" data files. Following are common problems users have experienced:

USgeocoder Solutions

Over 99% Accuracy Nationwide

USgeocoder’s proprietary algorithm combines the Census TIGER files, USPS files, state district boundary files and supplemental parcel data files to produce the most accurate matches for address and postal zip codes to districts. USgeocoder files are built entirely in house and are constantly being tested and improved. We are in regular contact with the USPS and Census TIGER officials regarding accuracy improvements.

Most Frequently Updated Data Available in Today's Market

USgeocoder uses 2020 and subsequent Census TIGER data upon which all political districts are built.

Every month, USgeocoder receives the latest US Postal Service data to update the TIGER census files. Typically, a new address is available to USgeocoder within thirty days after the Postal Services' first delivery to it.

After the 2020 census recount, states have been going through redistricting for congressional districts and state legislative districts since 2021. Upon states releasing their new boundary files, USgeocoder integrates the new boundary data with its precise GIS data and the latest postal data to produce the state legislative district data. Our State legislative Re-districting files are up to date with the latest court orders and the current legislative assignments.

USgeocoder also provides district data with the state legislative elected officials' contact, committee assignment and staff information. This information is updated on a monthly basis.

Covering the entire country and its possessions

USgeocoder provides the most complete state legislative district data you can find. We cover the 50 states, Puerto Rico and the rest of the island territories.

Using federal standards for naming conventions:

We use THE GOVERNMENT STANDARD for our district names. The district names in our files are provided by the states and automatically adopted by the federal government. The naming convention and field lengths are set by census Bureau to accommodate the requirements of each state. The federal governments use them for all federal matters and communications.

More Affordable and More Flexible

As one of the very few zip to district data compilers, we are more flexible in customization and pricing. We can produce custom data files per your specifications.

USgeocoder State Legislative district data is provided in csv format. It works seamlessly with any database, computer or operating system. Files are updated as often as monthly. They may be purchased by district, state, region, or the whole country. Please contact us for flexible options and pricing details.

You can use USgeocoder district data files in many ways:

Contact us to see how we can help.