The majority of persons
with the last name Kniffen
are born in July
and die in July
born dead
29.8% live in New York
12.9% live in Michigan
10.2% live in Illinois
If you don't like people
with the name kniffen
you should probably go to
New Hampshire (None live there).
Fun fact: South Dakota
is the state with the most
last name kniffen per capita.
Check out the popularity
of the last name kniffen
for each state in the map below.
