Orange and Riverside aren’t really urban counties . They are just major suburban ones
Certainly not urban, but far more densely populated than its geographic size suggests.
https://davesredistricting.org/maps#viewmap::2531b12e-5a11-4778-93ea-94f924a4730c90% of voters live in the red; another 5% in the blue; the remaining 5% in the green. Red and blue areas voted almost identical in 2020 (within 0.3 points of one another; a combined total of 9 points), while the green rural area voted for Trump by almost 6 points.