Cancer in Iowa 2011, State Health Registry of Iowa Report http://canceriowa.org/Files/Cancer_2011.aspx State Health Registry of Iowa (County Level Data) http://www.public-health.uiowa.edu/shri/ Iowa Cancer Smoothed Maps http://www.canceriowa.org/News---Publications/GIS-Smoothed-Cancer-Maps-of-Iowa.aspx National Cancer Institute's State Cancer Profiles http://statecancerprofiles.cancer.gov/ Behavioral Risk Factor Surveillance System (State Level Data) http://apps.nccd.cdc.gov/brfss/index.asp Iowa County Health Rankings http://www.countyhealthrankings.org/iowa Iowa Demographic Data http://statecancerprofiles.cancer.gov/census/index.php