I live in Bakersfield. Everyone here including meteorologists call it the Central Valley which also includes Fresno but not real sure how much further north than there; but south only to the Grapevine. So technically, we live in the southern tip of the Central Valley. When I think of northern CA, I think of anywhere above Sacramento.So I usually just say I'm in sunny southern CaliforniaHey all, hello! I have a friend who lives in Eureka, now THAT's northern California! He makes fun of me when I say I live in northern California (20miles east of Sacramento) because HE's in the north, lol. I would have to say that anything south of Sacramento and north of the grapevine is in the central valley. It's all good!