For the purposes of CDFW the state of California is divided up into six regions – 7 when you include the ocean. We’re the Bay Delta region and that includes just what you’d expect. Fresno is the central and Placer and Sacramento is the north central. Each region is in charge of granting permits for trapping in their respective boundaries and they all do things a little differently.
Here is a graph of the allowed depredation permits issued for beavers in 2021 by region. Let me know if you spot any patterns.