27.4% live in New York
13.0% live in Pennsylvania
8.0% live in New Jersey
If you don't like people
with the name mccaffery
you should probably move to
Vermont (None live there).
Interesting fact: Delaware
is the state with the most
last name mccaffery per capita.
Check out the popularity
of the last name mccaffery
for each state in the map below.