20.0% live in New Hampshire and California
10.0% live in New York, Pennsylvania, Maryland, Illinois, Washington and Oregon
If you don't like people
called borisova
you should probably go to
Maine (None live there).
Interesting fact: New Hampshire
is the state with the most
last name borisova per capita.
Check out the popularity
of the last name borisova
for each state in the map below.