The what, why, and how of Census geography. What are the definitions of geographic terms, why are geographic areas defined, and how we define geographic areas. Find reference information such as FIPS and ANSI codes, geographic boundary change notes, significant county boundary changes, and county adjacency information.
A world of information. It brings UN statistical databases within easy reach of users through a single entry point. Users can now search and download a variety of statistical resources of the UN system.