Best Waterloo (IA) Hotels With 18+ Check-In (Updated January 2026)

Welcome to Waterloo, Iowa, a city bursting with youthful vibrancy and a hidden gem for the adventurous traveler. Step into a world where history meets modernity, where the beauty of nature coexists with the buzz of a thriving urban life. Located in the heart of the Midwest, Waterloo offers a unique blend of attractions that will make your visit unforgettable.

With a rich history dating back to the early 19th century, Waterloo is teeming with cultural attractions, from historic museums to contemporary art galleries. For the outdoor enthusiasts, the city is a paradise filled with picturesque parks, trails, and bodies of water. Nightlife in Waterloo is equally exciting, with a vibrant music scene, bustling bars, and gourmet eateries that cater to every palate.

Whether you're a history buff, an art lover, a foodie, or an adventure seeker, Waterloo promises a memorable experience for everyone.

Below is a list of hotels and motels in Waterloo that allow reservations for guests under 21, including those aged 18, 19, and 20. From cheap options to more adult-focused accommodations, there's a variety of places to rent that fit your needs and preferences!

Please note that hotel policies regarding the minimum check-in age in Waterloo can change at any time. While we aim to keep our information updated, we recommend confirming the minimum age requirement with the hotel or motel before making a reservation.