A quick Google search tells me the closest Cal State to me, Sacramento, has a 67.3% acceptance rate. Slightly higher than the national average of 64.7%, although I'm not sure how trustworthy those numbers are.
I went to CSUS. I'm very surprised it's that low. Shortly after the one year I went there, they implemented a "fast track" acceptance which basically meant they accepted you as long as you had a high school diploma.