Data Services Staff compiles, maintains and monitors a vast amount of current and historical demographic data at various geographic levels for the five-county Bi-State Region, states of Illinois and Iowa and the Nation.  To access demographic data for the Region, please see the Data Clearinghouse page.  Or, to access multiple data sets and/or multiple geographies within the Nation, such as census blocks, tracts, voting districts, cities, counties and school districts, visit the Census’ American Factfinder or please contact our Data Services Staff.

pdf 1950 2010 census population (bi state region) (19 KB)

2010 Census Demographic Profiles

2000 Census Demographic Profiles