National Sources:
- US Census Bureau (census.gov)
Free public access to U.S. demographic, trade, and business data and statistical reports.
- US Census Bureau Data Site (data.census.gov)
Powerful interactive portal to search to view demographic statistics across a variety of topics for your state, county or town.
- Data.gov Open Data Portal
Thousands of data sets that can be incorporated into spreadsheets, BI dashboards, etc.
State/Local Sources
- State of Illinois Open Data
Lets you find data across the state, find facts about Illinois, create maps and graphs, and lets you freely download the data for your own analysis.
- Cook County Open Data
Download data sets about Cook County for use in spreadsheets, maps, dashboards, etc.