Census Online

The Census of Governments identifies the scope and nature of the nation's state and local government sector; provides authoritative benchmark figures of public finance and public employment; classifies local government organizations, powers, and activities; and measures federal, state, and local fiscal relationships--a treasure of information. It is free and online at census.gov.

 The data are available by:

• level of government (state, local, or state and local combined),
• type of government (state, county, city, township, special district, school district), and
• category of governmental activity 

Source: census.gov