Devil's lake camping

We're coming to Devil's lake for the first time and I was wondering where to camp (Saturday 28 - Tuesday 31, July; 2 people). I looked at the park camp-sites, but everything's booked for the Saturday. Where do people usually camp when the park campgrounds are full? I saw a bunch of options, but some local advice is appreciated!

It's not the nicest place, but last fall my friends and I camped at Red Oak Campground about 10 miles north of Devil's Lake.

They have a lot of forested camp sites, but are close to the highway so you won't get the same feel as camping in the park.

Heads up, they're also cash only.

https://www.redoakcampground.com

I have used Green Valley and it is awesome. Close and only $10per adult if you don't barter it down. That would be my suggestion.

You can also check at Devil's Lake campground and see if someone didn't show up once you arrive. I have also heard that they hold some spots for walk-ins that you cannot reserve, but i have never gotten a site this way so i can't speak to that too much. 

Go talk to Donna at Green Valley campground. It's the best place. Plus you can pet some donkeys before you climb.

I second the recommendation for Green Valley. Also, rocky arbor state park is about 15 minutes away and usually has available spots.

Thanks for the suggestions!

I liked Nordic Pines. Its right next to the park and has nice bathrooms. 

Mirror Lake State Park is only about 10 miles away.  The campground there sometimes has space when Devils Lake is full,

Keep checking back on the booking site. As people ditch their campsites, you can pick them up.