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Around the mid-20th century most of the families were Anglo White and blue collar. In 1968 the district had 7,016 students, a peak enrollment. However in 1983 it was down to 3,974, which became the lowest enrollment at the time. The enrollment declined because the area became more expensive, limiting the number of new families.[8] In 1985 the district's enrollment had increased to 4,030 students, with 42.9% being Anglo White, 37.3% being Latino or Hispanic, 13.9% being Asians, 5.6% being black, and 0.4% being Native American.[9]
James Waters served as the superintendent until 1991, when he moved to be the Santee School District superintendent. His resignation was effective after September 20, 1991.[11]
Around 1991 the annual growth rate for the student body was 100 as wealthier families were moving to the district. In 1991 Kim Kowsky of the Los Angeles Times stated that the district, in light of the expansion of the number of racial and ethnic minority students, was "rapidly changing" and that therefore there were "lively" board campaigns for three seats on the district board. As of October 1991, there were 4,332 students: 41% of the students were Latino or Hispanic, 31% were Anglo White, 13% were black, and 10% were Asian. Of the student body, limited English proficiency students made up less than 30%.[8] The enrollment circa August 1991 was about 4,500.[11]
In 2021 a block of unincorporated areas that was in the Lawndale School District and Centinela Valley USD voted on a proposal on whether it should move to the Wiseburn Unified School District; previously students living in the block living in Wiseburn would have had to get permission from their zoned school districts to attend Wiseburn. According to Hunter Lee the Daily Breeze, "few" people voted in the election.[12] The vote to transfer the area to Wiseburn was approved.[13]
^"Special Elections March 2, 2021". Los Angeles County Registrar-Recorder/County Clerk. Retrieved 2023-03-17. - See "LAWNDALE SCHOOL DISTRICT, CENTINELA VALLEY UNION HIGH SCHOOL DISTRICT, WISEBURN UNIFIED SCHOOL DISTRICT SPECIAL REORGANIZATION ELECTION - MEASURE A"