A county map of the U.S. showing the gun death rate in each county from 2011 to 2020, as long as there were at least 20 gun deaths in that county during that time period.
Notes: The data used in the map is incomplete compared to the data used in the study. Also, data is not displayed when there are fewer than 20 firearm deaths in a county in the 10-year period.
Graphic: Joe Murphy / NBC News