The majority of people
with the last name Koster
are born in March
and die in January
born dead
23.1% live in New York
13.4% live in Michigan
10.5% live in Illinois
If you don't like people
named koster
you should probably go to
Vermont (None live there).
Fun fact: Iowa
is the state with the most
last name koster per capita.
Check out the popularity
of the last name koster
for each state in the map below.
