In recent years , Lincoln had the largest Yazidi ( Iraqi ethnic minority ) population in the U.S . In a three-year period , the immigrant and refugee student population at Lincoln Public Schools increased 52 % - from 1,606 students in 2014 , to 2,445 in 2017.The decade from 1990 to 2000 saw a significant rise in population from 191,972 to 225,581 .
Lincoln , Nebraska had the largest Yazidi ( Iraqi ethnic minority ) population in the U.S .