32.0% live in New York
17.3% live in Massachusetts
9.3% live in New Jersey
If you don't like people
called efstathiou
you should probably go to
Vermont (None live there).
Interesting fact: New Hampshire
is the state with the most
last name efstathiou per capita.
Check out the popularity
of the last name efstathiou
for each state in the map below.