USgeocoder API

Powered by location intelligence technology, the USgeocoder Application Programming Interface (API) provides precise up to date address information for authorized users.

Users can provide either address (street address and zip code) or geocodes (latitude and longitude) to USgeocoder servers to obtain the following information:


USgeocoder APIs are used by advocacy groups, political campaigns, marketing agencies, delivery service providers, and online merchants.

You can use the USgeocoder API output to:

Auto-populate your constituents' political jurisdictions from Congressional to municipal, tribal reservation, and school board levels
Auto-populate your constituents' Senators, Congress people, State Legislators, and State Governor and Lieutenant Governor
Auto-populate your constituents' voting precincts
Auto-populate zip+9 and carrier route information for your mass mailings, member service files and customer files
Calculate Sales and Use Tax rates for your online stores
And much more....

USgeocoder Engine is hosted in a co-location facility in a SAS70 Type 2 and PCI audited zone 4 seismic compliant facility located on a major optical fiber trunk in the center of Silicon Valley. The center is under 24 hour guard and requires biometric authentication for entry. Its state-of-the-art redundant systems assure power availability, temperature and humidity control and security.

When you connect to USgeocoder API, you are assured to have the most accurate and up-to-date information! USgeocoder engine uses proprietary methods to seamlessly integrate multiple data sources such as US Postal System delivery data and US TIGER Census data. USgeocoder is loaded with the most recent US TIGER Census files within a few days of release. Our U.S. Postal records are updated monthly. We also update our elected officials database once every month.

To find out more about what USgeocoder API can produce, please take a test drive from our live demo or take a look at the sample API data output.

Get started using USgeocoder API, signup for a free 2-week API trial account now! You will get instant access to our entire database for full 2 weeks or 1,000 free lookups, whichever comes earlier. No credit card is required.