Iowa Homicide age adjusted death rate ranked by county. Latest CDC data is used. The interactive chart can be used to rank county death rates from low to high and high to low to add perspective to your research.
CDC: 1999-2017 Final Data Published 12/6/2018
In order to get enough data to display county rankings multiple years must be used. Recently the CDC has begun suppressing even more counties. If your county is not included that is the reason.