Here is the GPA information from each of the CA colleges CDS in the initial list; kudos to Stanford, USC, UC Berkeley, UCLA, Santa Clara, and UCSC for providing a mean gpa in unweighted terms, per CDS instructions:
California Institute of Technology 1555 36
……2018 GPA Info: 96% top tenth; 100% top quarter
Harvey Mudd College 1525 35
……2019 GPA info: 87% top tenth; 98% top quarter
……2018 GPA info: 97% top tenth; 98% top quarter
Stanford University 1495 34
……2019 GPA Info: 3.96 mean uwgpa, 81.8% reported
……2018 GPA Info: 3.95 mean uwgpa, 88.6% reported
University of Southern California 1440 32
……2018 GPA Info: 3.79 mean uwgpa, 100% reported
University of California-Berkeley 1425 33
……2018 GPA Info: 3.89 mean uwgpa, 100% reported
Claremont McKenna College 1425 33
……2019 GPA Info: 83% top tenth; 100% top quarter, 14% submitted rank
……2018 GPA Info: 78% top tenth; 93% top quarter, 17% submitted rank
……Note: CMC has the most comprehensive C9 score data I’ve seen
……https://www.cmc.edu/sites/default/files/registrar/CDS_2019-2020.pdf
University of California-Los Angeles 1405 32
……2019 GPA info: 3.90 mean uwgpa, 99% reported
……2018 GPA info: 3.89 mean uwgpa, 99% reported
University of California-San Diego 1365 30
……2018 GPA info: 4.07 wgpa, 96% submitted (UC gpa not fully weighted)
……probably converts to ~ 3.75 uwgpa
Santa Clara University 1355 30
……2018 GPA info: 3.71 uwgpa, 100% submitted
University of California-Santa Barbara 1345 30
……2018 GPA info: 4.12 wgpa, 95% submitted (UC gpa not fully weighted)
………………………probably converts to ~ 3.79 uwgpa
California Polytechnic State University-San Luis Obispo 1335 29
……2018 GPA info: 4.00 wgpa, 98% reported (CSU gpa not fully weighted)
………………………not sure how CSU converts to uwgpa
University of California-Irvine 1300 29
……2018 GPA info: 4.00 wgpa, 100% reported (UC gpa, not fully weighted)
…seems to be too rounded to be an actual mean
Loyola Marymount University 1300 29
……2018 GPA info: 3.81 uwgpa, 98.9% reported (numbers don’t seem to add up; ………………………USC has higher tiered percentage grades, so LMU’s should be < USC’s)
University of California-Santa Cruz 1295 29
……2018 GPA info: 3.55 uwgpa, 97% submitted (kudos to UCSC for submitting uw)
Note: UC Berkeley and UCLA, especially, come considerably short of maxing out their scores – undoubtedly the same for UCSB and UCSD – for economic (and racial) diversity. To show this, UCLA’s CA cohort scores, 1,250/1,500 would outpace its out-of-state’s 1,390/1,520, 25th/75th if the University approached native students scores in the same way – i.e., more stats-based – because of the lower acceptance rate and greater pool from which to choose.