At high school levels, San Diego really seems to be behind. There is no high school with API over 900 (yes, I know it is a flawed measure..). Bay area and LA/OC have several. Even Fresno has a high school with API in the 900s.
Checking API scores of some well known high schools
Scripps Ranch High – 875
Torrey Pines High -870
Westview High – 851
Poway High – 857
Rancho Bernardo High – 864
La Jolla High -841
Mt. Carmel High -818
Coronado High – ?
First of all they are all well bellow 900. Secondly, Scripps Ranch High school (in SDUSD) is doing better than all of the supposedly better school district high schools – in poway and North County….