Not sure about these colleges but honestly colleges offer a lot of services to the local community. They might police a certain area directly. They might mainta

Not sure about these colleges but honestly colleges offer a lot of services to the local community. They might police a certain area directly. They might maintain certain roads. They could run their own sewer setup or run their own powerplant. They probably maintain a datacenter. They might even run or own a hospital, or even run a small school for observational studies in their education program. To say nothing of the payroll tax added by their usually massive employee headcounts, plus all the tax revenue coming in from income tax of students working nearby and that payroll tax, sales taxes as well.