27.3% live in New York
22.7% live in Illinois
4.5% live in Connecticut, Washington DC and Michigan
If you don't like people
called mclennon
you should probably move to
New Hampshire (None live there).
Fun fact: North Dakota
is the state with the most
last name mclennon per capita.
Check out the popularity
of the last name mclennon
for each state in the map below.