Dayton’s population grew by only 7.5% from the 1950 census to the 1960 census, but by 1970 it was back to the 1950 level. Not sure how much of that post-1960 shrinkage was due to suburbanization, though. More likely new campuses were built during this period to accommodate the first wave of post-WWII baby boomers who were not only more numerous than previous cohorts but also attended college at higher rates, spurred in part by newfound prosperity, a desire for upward mobility, and federal policies to support higher education through research grants and federal financial aid. Given changing demographics, some states like Ohio are probably overbuilt at this point.