Provides population, housing, agricultural, and economic data, along with GIS-compatible boundary files, for geographic units in the United States from 1790 to the present. See Data Source
Collects, preserves and harmonizes U.S. census microdata and provides easy access to this data with enhanced documentation. Data includes decennial censuses from 1790 to 2010 and American Community Surveys (ACS) from 2000 to the present. See Data Source
It offers maps and data of all the transportation networks, maps of general areas of where people live and work, maps of traffic counts, and for the greater Indianapolis area See Data Source