23.1% live in Massachusetts
19.1% live in New Hampshire
13.6% live in Maine
If you don't like people
with the name rouillard
you should probably go to
New Jersey (None live there).
Interesting fact: New Hampshire
is the state with the most
last name rouillard per capita.
Check out the popularity
of the last name rouillard
for each state in the map below.