18+ Hotels in Waterloo, IA
Where You Can Check In at 18, 19 or 20

5 hotels in Waterloo, IA list a minimum check-in age of 18 on Hotels.com, so travelers aged 18, 19 and 20 can check in. Observed starting prices begin at $57 at Econo Lodge Inn & Suites, with a median of $67 per night. The Weis Mansion has the best guest rating, 10.0/10 from 68 reviews. Of these, 3 have a pool and 3 accept pets. Places mentioned near these hotels include Five Sullivan Brothers Convention Center, John Deere Tractor & Engine Museum and Lost Island Waterpark. Hotel data checked in November 2026.

Policies can change: confirm the minimum check-in age with the hotel before booking.

hotels with 18+ check-in
5
lowest starting price, Econo Lodge Inn & Suites
$57
median starting price per night
$67
best rating, The Weis Mansion
10.0/10
accept pets
3
have a pool
3

Dates are passed to Hotels.com to check availability and current prices.

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Showing 5 of 5 hotels.

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The Weis Mansion allows check-in for 18 year-old guests

The Weis Mansion

10.0/10 68 reviews Highly rated

3.0-star hotel

800 W 4th St, Waterloo, IA 50702, USA

Grout Museum of History · 0.4 km · 5 min walk

  • Fitness center
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

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Pets: Pets not allowed

Nearby

  • Grout Museum of History — 0.4 km, 5 min walk
  • Five Sullivan Brothers Convention Center — 0.8 km, 9 min walk
  • Waterloo Center for the Arts — 1.2 km, 14 min walk

From USD 98.00

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Econo Lodge Inn & Suites allows check-in for 18 year-old guests

Econo Lodge Inn & Suites

6.8/10 461 reviews

2.0-star hotel

226 W 5th St, Waterloo, IA 50701, USA

Five Sullivan Brothers Convention Center · 0.2 km · 2 min walk

  • Fitness center
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

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Parking: Wheelchair-accessible parking

Pets: Pets not allowed

Nearby

  • Five Sullivan Brothers Convention Center — 0.2 km, 2 min walk
  • Waterloo Convention Center — 0.2 km, 2 min walk
  • Waterloo Center for the Arts — 0.6 km, 6 min walk

From USD 57.00

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Motel 6 Waterloo, IA allows check-in for 18 year-old guests

Motel 6 Waterloo, IA

5.8/10 315 reviews

2.0-star hotel

2343 Logan Ave, Waterloo, IA 50703, USA

John Deere Tractor & Engine Museum · 5.9 km · 7 min drive

  • Pool
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

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Parking: Wheelchair-accessible parking · 1 on-site accessible parking spaces · Wheelchair-accessible van parking

Pets: Pets stay free (dogs only, 2 total)

Nearby

  • John Deere Tractor & Engine Museum — 5.9 km, 7 min drive
  • University of Northern Iowa — 14.4 km, 10 min drive
  • UNI-Dome — 16.5 km, 12 min drive

From USD 67.00

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Motel 6 Waterloo, IA - Crossroads Mall - Cedar Falls allows check-in for 18 year-old guests

Motel 6 Waterloo, IA - Crossroads Mall - Cedar Falls

5.8/10 781 reviews

2.0-star hotel

2141 LaPorte Rd, Waterloo, IA 50702, USA

Lost Island Waterpark · 3.2 km · 2 min drive

  • Pool
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

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Parking: Wheelchair-accessible parking · 1 on-site accessible parking spaces · Wheelchair-accessible van parking

Pets: Pets stay free (2 total)

Nearby

  • Lost Island Waterpark — 3.2 km, 2 min drive
  • South Hills Golf Course — 3.9 km, 3 min drive
  • Lost Island Theme Park — 4.2 km, 3 min drive

From USD 63.00

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Hampton Inn Waterloo allows check-in for 18 year-old guests

Hampton Inn Waterloo

8.8/10 977 reviews Highly rated

2.5-star hotel

2034 La Porte Rd, Waterloo, IA 50702, USA

Lost Island Waterpark · 3.2 km · 2 min drive

  • Pool
  • Fitness center
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

Show more details

Parking: Wheelchair-accessible parking · Wheelchair-accessible van parking

Pets: Pets allowed (dogs and cats only, 2 total)*

Nearby

  • Lost Island Waterpark — 3.2 km, 2 min drive
  • South Hills Golf Course — 3.9 km, 3 min drive
  • Lost Island Theme Park — 4.2 km, 3 min drive

From USD 109.00

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Nearby Cities With 18+ Hotels

Cedar Rapids 50 mi · 4 hotels
Williamsburg 60 mi · 3 hotels
Clear Lake 68 mi · 3 hotels
Iowa City 72 mi · 2 hotels
Ames 72 mi · 6 hotels
Ankeny 83 mi · 2 hotels
Dubuque 84 mi · 5 hotels
Des Moines 91 mi · 6 hotels
Fort Dodge 93 mi · 2 hotels
Muscatine 99 mi · 2 hotels
Algona 103 mi · 2 hotels
Davenport 111 mi · 2 hotels

See all Iowa cities with 18+ hotels

Waterloo Hotel Check-In FAQ

Can you check into a hotel in Waterloo at 18?

Yes. 5 hotels in Waterloo list a minimum check-in age of 18 on Hotels.com. Policies can change, so confirm with the property before booking and bring a government-issued photo ID.

Can I check in without a credit card in Waterloo?

Often, yes. Of the 5 hotels listed here, 3 accept debit cards and 3 accept cash, according to Hotels.com (The Weis Mansion, Hampton Inn Waterloo and Econo Lodge Inn & Suites). Most hotels still hold a deposit for incidentals at check-in, so call ahead to confirm they will take it without a credit card.

What time is check-in at 18+ hotels in Waterloo?

Check-in starts between 3 PM and 4 PM at the hotels listed here, most often at 3 PM (4 of 5). Check-out is usually at 11 AM.

Which 18+ hotel is closest to Five Sullivan Brothers Convention Center?

Econo Lodge Inn & Suites is the closest of the hotels listed here, 0.1 mi away, followed by The Weis Mansion (0.5 mi) and Motel 6 Waterloo, IA - Crossroads Mall - Cedar Falls (3.3 mi).

What is the cheapest hotel in Waterloo for 18-year-olds?

Econo Lodge Inn & Suites had the lowest observed starting price, from $57 per night when we checked in November 2026, against a median of $67 for the 5 hotels with a listed price. Prices change with dates: select your dates to see the current price on Hotels.com.