After 23 years as Hidden Valley RV Resort Marcia and I have decided to join the KOA franchise system. Our new name is now Milton KOA. We have the same great staff and activities that we have had in the past, the only change you will notice is the color yellow will be everywhere. The employees will be in yellow as will all of the signage. The biggest plus of changing to KOA is that you are now able to book your sites on line 24/7. We have had a lot of requests for this so we hope you will check it out. Another big plus of going to KOA you will be able purchase a KOA Rewards card and get a 10% discount on your stay with us or any of the almost 500 KOA campgrounds in North America. If you have a Good Sam card we will also be accepting them. We look forward to seeing all of our great campers again this season plus we look forward to meeting many  new KOA campers.

Jim & Marcia

Welcome to The Milton KOA Family Campgrounds in Milton, Wisconsin

Hidden Valley R.V. Resort & Campgrounds in Milton, Wisconsin

It’s time to think about spring and the upcoming 2018 camping season! See what’s new for 2018 in our view The Milton KOA 2017 Spring Edition. The Milton KOA Family Campgrounds has a variety of exciting themed weekends planned again this season! As you know, we fill up fast so please make your reservations early to get the sites you prefer. We take reservations all winter and you can make them up to 2 years in advanced. Although we do our best to honor all site requests we do not guarantee specific site number requests. All you need to do is call us at (800) 469.5515 with your dates and a MasterCard, Visa or Discover for one night’s deposit to guarantee your site. Learn more about Milton KOA.

The WACO Guarantee
Full refund to any camper requesting a refund on campsite fees and leaving within one hour of check-in. Guarantee applies to campsite fees only and is not valid on holidays or holiday weekends. Please contact us with any questions to learn more.

WACO Reviews

Ranked #1 for Specialty Lodging in Milton. View our reviews from the community.

good-sam-10-10-10Good Sam members will SAVE 10%. Not a Member? Learn More here



Campsites Information

We offer ultra clean & spacious modern campsites & facilities for family camping with exceptionally manicured grounds and large grassy sites.

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Campground Map / Tour

Whether you’re looking for family fun or peace and quiet, you’ll find it at Milton KOA. Download our campground map!

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Resort Rates & Policies

Rates starting as low as $40.56 per night! Rates are determined by the type of site, length of stay and availability. Please call 1-800-469-5515 for a price with your dates.

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homepage-button-4Rental Information

Milton KOA has many rental options available. Rent a golf cart for the weekend for only $119.00 plus tax and enjoy our wooded trails!

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R.V. Resort & Campground in Southeastern Wisconsin

Whether you’re looking for family fun or peace and quiet, you’ll find it at Milton KOA!

Nestled in the rolling hills and valleys of Southern Wisconsin’s countryside, Milton KOA is isolated from today’s frantic pace–yet, it’s only minutes from the Wisconsin-Illinois border.

We are very proud of the resort we have built. In just 24 years it has gone from an empty field to one of the highest rated campgrounds in the county. Whether it is the immaculately landscaped grounds or the clean and modern facilities, we are so sure you will enjoy your stay with us that we guarantee it.* So if you are vacationing with us for a week or two or just passing through for a night, your stay with us will be one of the highlights of your trip.

2018 Rates Starting as Low as $40.56 Per Night!
The rates for 2018 start as low as $40.56 per night. Rates are determined by the type of site, length of stay and availability. Please call 1-800-469-5515 for a price with your dates or visit our Rates Page to learn more.  We offer back-in, drive-thru, or paved drive-thru sites with water, electric and sewer. Read More…


Make a reservation

This was our first time to Hidden Valley, and I was impressed at how nice the grounds are (trees to provide enough shade), the spots are pretty level, and the entire place seemed to be kept in great condition. Read More…

Upcoming Activities

April 27-28 Opening Weekend at Milton KOA!

April 27, 2018 / April 28, 2018
Milton KOA Campground (800) 469.5515 Campgrounds

Opening Weekend at Milton KOA! April 27-28

Join Milton KOA on April 27th & 28th for our opening weekend!


Pay for 1 night - get 1 night free!

May 4-5 Shotgun Jane Band

May 4, 2018 / May 5, 2018
Milton KOA Campground Music

Shotgun Jane Band (May 4-5)

shotgun jane

With a blend of pop/rockin' country, they are sure to bring you to your feet Saturday night and are ready to keep you dancing all night long.


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