Hi there Norcal neighbor. :)
I say a 30 foot total length is about the same as a 35 foot as far as parks in the golden state.
In the regional sense I think most popular RV locations will accommodate most 29 to 36 foot trailers somewhere in that locale.
For instance:
Rocky Point at Lake Almanor has campsites ranging from "no way" to "no sweat"
A place like Jackson Meadows (above Truckee off 89) doesn't look like it would be an easy campground for 27 and above.
Yet it is often loaded with 30-36 foot rigs.
Seems to me if a state\NFS camp has under 25 sites or the initial access is tight it's usually best left for tenting anyway.
IMO the large issue with a big one is short stays.
Once you have the room to enjoy the visit, you may find yourselves hanging around longer.
*btw
We have a number of neighbors here that RV and tent camp.
It's always nice to get a scouting report from them.
It's way more fun to run with the big dawgs than to sit on the porch ... :)