To find out, I analyzed data from The Guardian’s The Counted, which tracks law enforcement-related deaths in the United States. I calculated population size-adjusted rates for every county, then made the maps below.

(Technical note: counties with low populations can throw off this kind of analysis, because a small county with one death might have a very high death rate. I used a method that takes this into consideration, and down-weights small counties towards the national average.)

Some takeaway points: