Can someone point me to where I can find California Community Colleges transfer data?
There is a Datamart for the California Community Colleges. There are a variety of datasets to download, including the transfer volume (to in-state private and out-of-state BA/BS programs) and transfer velocity under student outcomes. For velocity, you can also choose by gender, ethnicity, and other attributes.
The system is a little awkward to use, but it does allow download in both CSV and Excel.