Understanding Census Geography [framework for collection/tabulation/dissemination]
Hierachy of the Census Geography see: http://www2.census.gov/geo/pdfs/reference/geodiagram.pdf
[Census and census surveys rest not only on collecting data but linking it to the correct geographic areas]
There are these TWO Broad categories of the Census Geography
Highlight data. click on Data, Tools and Apps
Go to the American FactFinder, follow directions to search community facts, click on street address link
When starting to work with the Census, you need to understand how the Census describes small-area geography. Large geography (Nation, State, County) is easy to understand, however, other geographic terms can be confusing for the novice because specialized terminology is used to describe small areas of the country. The Census Bureau standardizes this language across the US to facilitate comparison of geographic areas. The image below illustrates how the specialized terms fit together.
Census Terms to Know