50.0% live in Pennsylvania
15.4% live in Michigan
3.8% live in New Jersey, Maryland, Florida, Ohio, Illinois and Wisconsin
If you don't like people
called dex
you should probably move to
New Hampshire (None live there).
Interesting fact: Pennsylvania
is the state with the most
last name dex per capita.
Check out the popularity
of the last name dex
for each state in the map below.