Wife and I stayed here in April 2019, during our tour of the Olympic peninsula. We stayed in many places from Sequim to Westport, and had a great time. The Dungeness area was great for bird watching, but I wasn't really a fan of the campground. Nothing wrong with it, just too big and busy for me. 

They do take reservations, I guess it's necessary with 60+ sites, and group camping.  At $26/night for non-Clallam county residents, and a $10 reservation fee, this place is no bargain. One nice thing is they do have running water, which is a rarity in the places I usually go, and coin-operated showers. A nice shower sure does beat the adult bath wipes. Firewood is available here, for $5/bundle of 6 sticks. Looks like one round split in to six pieces. 

For the price, I'd almost recommend staying at a VRBO or AirBNB in the area. 

Pets must be allowed, because there were plenty.