Time series analysis (looking at the changes of a given location across time) of census data for decades 1970, 1980, 1990, 2000, and 2010 tract level. Includes an extensive subset of census variables - about 1,000 variables for each decade. Evaluate population trends without having to control for changes in boundary definitions. The year specific boundaries are also included to do tract level geographies and making it very easy to compare data across censuses.
There is a two concurrent user limit.