2018 California gubernatorial primary election results by county.

  Newsom—60–70%
  Newsom—50–60%
  Newsom—40–50%
  Newsom—30–40%
  Newsom—20–30%
  Cox—20–30%
  Cox—30–40%
  Cox—40–50%
  Villaraigosa—30–40%
Own work
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