46.7% live in California
13.3% live in Michigan
6.7% live in New York, Maryland, Mississippi and Washington
If you don't like people
called grospe
you should probably go to
New Hampshire (None live there).
Cool fact: Mississippi
is the state with the most
last name grospe per capita.
Check out the popularity
of the last name grospe
for each state in the map below.