Hi Lenora! Sorry for delay in reply I was in route to TX
Re: Crater Lake camping, two places that I know about (maybe more) are Diamond Lake Resort at the NORTH entrance and Mazama Campground inside the park at the SOUTH entrance.
We will be at Mazama on Sat and Sun, August 13 and 14. Warning....traveling with TWO teenage boys! They are a handful, but lots of fun too!