On the show, did they ever tell us what the name of the college was that Rick and Wally went to? What location did they use?

I don't think they ever did give an exact name, but Ozzie's book says in real life Dave attended USC. I don't know where they did the exterior shots, either, but it wouldn't surprise me if it was just a set at General Service Studios, where they shot the series up until the last year, when they used a soundstage at Desilu studios.