[norcal joe]

Here’s a link to an article talking about it.

https://fox5sandiego.com/news/california-news/what-california-counties-did-trump-flip-red-in-the-2024-presidential-election/

[Texas_Jarhead]

Great link... I will quote

"According to Golden State election maps provided by the Associated Press, Trump flipped 10 counties to red during the 2024 presidential election — as of Nov. 7, 2024 — that had previously been blue for Biden back in 2020.

Confirmation, 10 counties in CA flipped red. Excellent.

[kiryandil]

Those counties include Butte, Nevada, San Joaquin, Stanislaus, Merced, Inyo, Fresno, San Bernardino, Riverside, and Orange.

also:

Trump appears to have flipped nine counties that were won by Biden in 2020: Butte, Nevada, San Joaquin, Stanislaus, Merced, Fresno, Inyo, San Bernardino, and Orange.

Of these nine, all except Butte and Inyo were also won by Hillary Clinton in 2016. These counties appear to be outside of the San Francisco Bay Area, where Harris appears to have matched Biden's performance.