The number of black teachers and administrators in the Bulloch County Schools has increased from 11 percent of the school system’s total workforce with teaching certificates in 2012-13 to 14.2 percent this school year. But an educator workforce that is 84 percent white still does not closely resemble the diversity of the children in the classrooms. A Georgia Department of Education report in March showed that 5,074 of the Bulloch County Schools’ 10,370 students, or 49 percent, were nonwhite.