Not many really great flying spots in the area that I've found, I kind of just fly where I can find space. Local parks, soccer fields, etc. Elk Grove park used to be good but has become fairly overgrown with trees in recent years. Not exactly close for Orangevale though.
Maidu Park in Roseville is decent, it's about 4-5 soccer fields if you drive all the way to the back side.
Ripon (Mistlin Sports Complex) is great and very spacious but it's about an hour drive from here. You'll have to come out sometime.
Looks like there are quite a few parks in Orangevale although I'm not sure how large/spacious they are. I know John had scouted out many parks in the area, maybe he'll chime in on if any will be local to you.