28.6% live in New York
      21.4% live in Illinois
      14.3% live in New Jersey and  Maryland
         
      If you don't like people
      called borisov
      you should probably move to
      New Hampshire (None live there).
          
      Interesting fact: Maryland
      is the state with the most
      last name borisov per capita.
      
      Check out the popularity
      of the last name borisov
      for each state in the map below.