U.S. Census video on using block level data from the American Community Survey

U.S. Census provides tutorial on using block level demographic data from the American Community Survey (ACS). Block level data is data at the lowest level of aggregation as opposed to a census tract, zip code, or higher. A block may be as small as a few streets in a neighborhood.

Block level data is provided only in the 5 year summary file and for certain tables. The data is quite useful for a number of business, commercial, and research purposes.