I think there a few things at work…I have no doubt that the white collar base in SD has increased in the last decade. Therefore the mix that the median income stat is based on has changed. The population as a whole has seen income growth (more high paying jobs), but individuals families have not (or not significant). As to the home prices raising so much in the last ten years, well I am just scratching my head…the best I can come up with always includes restrictive development boards and just a population of people with poor fiscal values. There are just way too many “fake it till you make it” people in southern California who live way to close to the edge.