This dataset contains one file containing data from the Iowa Department of Natural Resources shared with the Cornell Wildlife Health Lab (CWHL) at Cornell University for the purpose of the Surveillance Optimization Project for Chronic Wasting Disease (SOP4CWD): records in standardized form depicting the results of chronic wasting disease (CWD) testing of white-tailed deer (Odocoileus virginianus) in Iowa, US for hunting seasons from 2001-02 to 2019-20, as completed by wildlife health diagnosticians at (or in partnership with) the Iowa Department of Natural Resources.