According to the 2010 United States Census,Ii is the 39004th most common surname in the United States, belonging to 565 individuals.Ii is most common among White (50.44%), Black/African American (26.02%) and Hispanic/Latino (13.63%) individuals.
^Sirkka Paikkala, editor (2007),Suomalainen paikannimikirja [The Book of Finnish Place Names] (in Finnish), Helsinki: Karttakeskus, Kotimaisten kielten tutkimuskeskus,→ISBN