> Geographically though I believe most of the counties are quite republican.
The median D-R margin of California's 58 counties is D +3.7%.
This somewhat overstates the D advantage because California’s Decline to State/No Party Preference voters break somewhat Republican in elections; the median by county margin in the last gubernatorial election was about a 5 point GOP advantage (with the more Democratic counties having a huge population advantage, of course.)
The median D-R margin of California's 58 counties is D +3.7%.
This somewhat overstates the D advantage because California’s Decline to State/No Party Preference voters break somewhat Republican in elections; the median by county margin in the last gubernatorial election was about a 5 point GOP advantage (with the more Democratic counties having a huge population advantage, of course.)