This is interesting when compared to Los Angeles, I think the Bay Area and LA are similar in terms of the sprawl but one is thought of as a single city and the other is not.
https://www.google.com/maps/dir/Los+Angeles,+CA/orange+count...
It's almost twice as long as SF to San Jose: https://www.google.com/maps/dir/San+Francisco,+CA/San+Jose,+...