This map is repeatedly posted as misinformation. The blue counties here are simply the 100 or so largest in the US and combined add up to about 50% of the country's population. This style of map is popular on things like reddit's mapporn, etc.
The deep south has a bunch of Biden counties that are very small in population; something like 1/3 of counties in Mississippi went Biden. Another tell would be the native american counties in western South Dakota.
I don't know what that map is of but it isn't a map of the election results.
This map is repeatedly posted as misinformation. The blue counties here are simply the 100 or so largest in the US and combined add up to about 50% of the country's population. This style of map is popular on things like reddit's mapporn, etc.
The deep south has a bunch of Biden counties that are very small in population; something like 1/3 of counties in Mississippi went Biden. Another tell would be the native american counties in western South Dakota.