Thanks for all the help. I'm now going to see if I can increase the 1-10 age bracket so there will be more students in the future. I guess I can do that by adding more parks and playgrounds.
I tried the new University, it went up from 1200 to 3600, but after fast-forwarding for 5 years it dropped of to 3000. Education by age is very high, 180+ all the way across, I have more than 20 libraries. The largest population by age is 21-30 at 325,000. Second is 31-40 at 300,000.