The district originally had a low-income rural white population. Schools were segregated until the late 1960s. By the 1970s, when the area was suburban and still mostly white, the state mandated racial integration of schools. African-American families moved to North Forest for the perceived quality of the schools. After desegregation, many white families moved to other communities along U.S. Highway 59, such as Aldine, Humble, and Porter, and African-American families became the majority and gained political control of NFISD. By the late 1970s it was one of the largest black-run school districts in the state; on October 12, 1989, it became the largest.