At present, limited data is available. We are starting with a listing of all governments of the United States and establishing relationships with them so we can get further information from each one of them.
Governements are divided into three categories by the US Census Bureau, general, school, and special. The database can be had by any member. Just drop me a line for the latest version (see contact page for addresses). It's currently undergoing a first pass through to add web pages and wikipedia links.