Welcome to Milton KOA, where we've been making memories in Southern Wisconsin for over 25 years.
Nestled in the rolling hills of the Southern Wisconsin countryside, Milton KOA is a family escape to fun, excitement, and relaxation that feels worlds away from the frantic pace of everyday life, yet is close to countless great attractions near the Wisconsin/Illinois border. After 23 years as Hidden Valley RV Resort, we adopted the KOA Yellow into our family-owned and operated tradition of being a destination for our guests to make incredible memories year after year!
2026 Events Calendar
April/May
Camping season starts strong with Opening Weekend specials, live music, Memorial Day fun, carnival games, and poolside entertainment for the whole family.
June
Summer kicks into gear with pool parties, Fiesta Weekend, Father’s Day activities, and a sweet Death by Chocolate weekend everyone will love.
July
From Fourth of July celebrations and Christmas in July to back-to-back Corn Roast weekends, July is packed with classic summer camping fun.
August
August brings craft fairs, Wet ’N Wild weekends, poolside DJs, anniversary fireworks, and another crowd-favorite Corn Roast weekend.
September
Labor Day kicks off the fall season before the campground transforms into Halloween central with costumes, trick-or-treating, and the Haunted Barn.
October
Halloween fun keeps rolling with pumpkin painting, costume parades, campsite decorating, trick-or-treating, and spooky Haunted Barn adventures all month long!
All you need is Right Here:
Fun Runs in Our Family.
Since our beginnings as a Hidden Valley RV Resort, the Kersten and Riggio families have been your hosts for family memories in Milton, Wisconsin.
