The majority of people
with the last name Grennan
are born in December
and die in October
born dead
30.6% live in New York
18.8% live in Illinois
8.7% live in California
If you don't like people
with the name grennan
you should probably go to
Maine (None live there).
Cool fact: Connecticut
is the state with the most
last name grennan per capita.
Check out the popularity
of the last name grennan
for each state in the map below.
