My wife and I just retired and we have children and grand children living in the Bay Area (libville) but are considering buying a house two hours away on 1+ acres in the Nevada City/Placerville area which, based on cursory research and visits, appears pretty conservative.
Yes, used to be way up there on the list, all of them are slowly falling , certain areas of Dem areas have few sections that lean conservative, Merced County was very conservative at one time but slowly losing out. Family is the number one reason a lot of do not leave, and are hovering in their domains Praying God has Mercy on and allows a win for Trump.
That is a very nice area grown a lot but still pockets of very good people.