A Census Summary Level is a level of geography for which the U.S. Census Bureau keeps track of data for tabulation purposes. In addition to political boundaries such as states and counties, the Census Bureau also creates smaller levels of geography so that data can be tabulated to smaller units. The smallest units are census blocks, followed by block groups and census tracts.
Maptitude Mapping Software gives you all of the tools, maps, and data you need to analyze and understand how geography affects you and your business. Maptitude includes detailed maps with Census data for the state, county, county subdivision, place, and tract summary levels. Additional summary levels including blocks, block groups, and congressional districts are also available from Caliper.