I would have gone with Davis for D. Used to live there. Nice town. Or Dixon where I used to work. Then I wouldn't have missed that one. :( Couldn't remember Daly City.
21 but I do live here. Couldn't think of King City, Joshua Tree or Quartz Hill. Could have gone with Discovery Bay for D as well. Great little community. By the way kalbahamut, I grew in Green Valley. Between Fairfield & Napa. 25 minutes to Dixon and a touch more to Davis.
Nice area all around. I'm originally from the Northern VA/Washington DC area, but I spent about 3 months living in San Pablo/Richmond and a year and a half in Davis. I worked for a while at the Denny's in Dixon. Don't eat there.
I love the backstory on Zzyzx, too. Really neat history. It is not incorporated but there is a CSU Desert Studies Center there and people do visit that and the site. It's pronounced so it rhymes with "Isaacs." :-)