CPSLO is highly selective for engineering majors, though.
The other CSUs are similar in cost to CPSLO. However, many of them are more commuter-based schools. Of the others with a selection of engineering programs, San Diego, Chico, San Francisco, San Jose, and Pomona are among the more residential ones (but they still have a substantial percentage of commuter students, up to about half).
The Pennsylvania equivalent of CSUs, the PASSHE schools, do not appear to have any with engineering (except one campus with computer engineering).