my school has 10 different campus buildings scattered over about a mile of the South Loop Neighborhood in Chicago, and has a bit over 10,000 students. Class size is between 10 to 35 students per c lass, most classes that arent lecture based have about 18 people in them. A map wouldnt really be a sufficent estamation of my schools size.
see, the dorm i live in also houses people from 3 other colleges too, so really it feels like my school is even bigger because its like going to all the schools in the area since most of the schools share resorces.