Our Story

Welcome to Willow Mill

More Than an RV Park. A Destination.

Welcome to Willow Mill Campsite, a family-oriented campsite in Rio, Wisconsin, serving campers since 1968. Located between Madison and Wisconsin Dells, our campground offers shaded lakefront sites, a welcoming community, and a relaxing atmosphere in the heart of Columbia County.

Whether you're visiting for a weekend or an extended stay, you'll enjoy convenient amenities including RV sites, a swimming pool, kayak rentals, a game room, pavilion, camp store, and laundry facilities. Nearby attractions include Madison, Wisconsin Dells, Devils Lake State Park, and the scenic Wisconsin River corridor, making Willow Mill the perfect base for work, recreation, and outdoor adventure.

Park Information: Office hours are Sunday–Tuesday: 8 AM–5 PM, Wednesday: 8 AM–7 PM, and Thursday–Saturday: 8 AM–9 PM.

4.4

Google Rating

211

Ways to Stay

rv park near lake wisconsin
Google Reviews

What Our Guests Are Saying

4.4
Based on 140 reviews
Nate Woodell
1 week ago

We really enjoyed our stay at Willow Mill! The staff was great, friendly and accommodating. Our cabin was clean with an awesome view of the lake. The kids enjoyed swimming, playing in the game room and playground. Hopefully we'll be back soon!

Kris Owens
2 weeks ago

I have made great friends with the permanent site family's over the years I have been camping there. It is nice to see that the new owners are making changes to update the campground to have better facilities.

NATE WOODELL
3 weeks ago

The family and l had a great time at Willow Mill! Staff was super accommodating, the cabin was great, kids had a blast swimming in the pool, fishing, playing games and exploring. Looking forward to our next stay there!

Mike Thibodeau
1 month ago

What a great group of people over here. Didn't camp there due to the fact my family has property about 10 minutes up the road. However on our way into town from ohio I missed the last truck stop with water. Called ahead and for what I would say was an extremely fair price let me pull in and fill my camper up with water. The maintenance guy and filled it then went and unlocked a gate on the other side so I didnt have to try and back out or drive all the way through and around. Even though I wasn't going to be camping there the friendliness of the staff was amazing. Thank you guys

Denise Schultz
1 month ago

We love camping at Willow Mills Campground. It needs work, but the friendly staff is doing an amazing job at fixing it up and making it come alive again. Everyone is so caring and accommodating. Keep up the good work and we will see you in August.

tomer alpert
1 month ago

Love this place, the most hospitable!

chris esfand
2 months ago

Super friendly and really nice for views

Brian Emmer
2 months ago

We go here every weekend. Friendly folks and many things to do. Great campground!

Doug Babler
2 months ago

It is a really peaceful campground with lots of great workers

Melvin Breunig
2 months ago

New owners. In the process of upgrading everything!! It will be awesome on completing!!

Ready to Experience Willow Mill?

Whether you are booking a weekend getaway or settling in for longer, we would love to have you.