18+ Hotels in San Marcos, TX
Where You Can Check In at 18, 19 or 20

9 hotels in San Marcos, TX 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 $60 at Motel 6 San Marcos, TX, with a median of $75 per night. Best Western San Marcos has the best guest rating, 8.0/10 from 983 reviews. Of these, 8 have a pool and 6 accept pets. Places mentioned near these hotels include Texas State University, Bobcat Stadium and San Marcos River. 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
9
lowest starting price, Motel 6 San Marcos, TX
$60
median starting price per night
$75
best rating, Best Western San Marcos
8.0/10
accept pets
6
have a pool
8

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

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Showing 9 of 9 hotels.

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Best Western San Marcos allows check-in for 18 year-old guests

Best Western San Marcos

8.0/10 983 reviews

2.5-star hotel

917 N I 35, San Marcos, TX 78666, USA

Rio Vista Park · 1.0 km · 12 min walk

  • Pool
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

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

Pets: Pets not allowed

Nearby

  • Rio Vista Park — 1.0 km, 12 min walk
  • San Marcos River — 1.0 km, 12 min walk
  • Texas State University — 1.0 km, 12 min walk

From USD 98.00

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Baymont Inn & Suites by Wyndham San Marcos Outlet Malls allows check-in for 18 year-old guests

Baymont Inn & Suites by Wyndham San Marcos Outlet Malls

7.2/10 1,003 reviews

2.5-star hotel

4210 IH-35 South, San Marcos, TX 78666, USA

San Marcos Premium Outlets · 0.5 km · 5 min walk

  • Pool
  • Fitness center
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

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Parking: Wheelchair-accessible parking · 3 on-site accessible parking spaces · Wheelchair-accessible van parking

Pets: Pets not allowed

Nearby

  • San Marcos Premium Outlets — 0.5 km, 5 min walk
  • San Marcos River — 8.6 km, 5 min drive
  • Texas State University — 10.5 km, 7 min drive

From USD 75.00

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Motel 6 San Marcos, TX allows check-in for 18 year-old guests

Motel 6 San Marcos, TX

6.4/10 1,010 reviews

2.0-star hotel

1321 North I-35, San Marcos, TX 78666, USA

Texas State University · 0.8 km · 8 min walk

  • Pool
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

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Parking: Wheelchair-accessible parking · 8 on-site accessible parking spaces · Wheelchair-accessible van parking

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

Nearby

  • Texas State University — 0.8 km, 8 min walk
  • Bobcat Stadium — 1.6 km, 19 min walk
  • San Marcos River — 2.3 km, 1 min drive

From USD 60.00

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Days Inn by Wyndham San Marcos allows check-in for 18 year-old guests

Days Inn by Wyndham San Marcos

6.4/10 1,002 reviews

2.0-star hotel

1005 I 35 N, San Marcos, TX 78666, USA

Rio Vista Park · 0.9 km · 10 min walk

  • Pool
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

Show more details

Pets: Pets not allowed

Nearby

  • Rio Vista Park — 0.9 km, 10 min walk
  • Texas State University — 0.9 km, 10 min walk
  • San Marcos River — 1.0 km, 12 min walk

From USD 69.00

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La Quinta Inn by Wyndham San Marcos allows check-in for 18 year-old guests

La Quinta Inn by Wyndham San Marcos

6.4/10 1,001 reviews

3.0-star hotel

1619 N I 35, San Marcos, TX 78666, USA

Texas State University · 1.2 km · 14 min walk

  • Pool
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

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Parking: Wheelchair-accessible parking

Pets: Pets allowed (dogs and cats only, 2 total, up to 75 lbs per pet)*

Nearby

  • Texas State University — 1.2 km, 14 min walk
  • Blanco Shoals Natural Area — 2.3 km, 1 min drive
  • San Marcos River — 3.4 km, 2 min drive

From USD 76.00

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Studio 6 San Marcos, TX allows check-in for 18 year-old guests

Studio 6 San Marcos, TX

6.2/10 1,005 reviews

2.5-star hotel

2212 Interstate 35, San Marcos, TX 78666, USA

Blanco Shoals Natural Area · 0.5 km · 5 min walk

  • Free WiFi
  • Air conditioning
  • Kitchen

Minimum check-in age: 18

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Parking: Wheelchair-accessible van parking

Pets: Pets allowed (dogs only, 2 total, up to 51 lbs per pet)*

Nearby

  • Blanco Shoals Natural Area — 0.5 km, 5 min walk
  • Texas State University — 3.4 km, 3 min drive
  • Rio Vista Park — 5.3 km, 4 min drive

From USD 82.00

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Howard Johnson by Wyndham San Marcos allows check-in for 18 year-old guests

Howard Johnson by Wyndham San Marcos

5.8/10 1,009 reviews

2.0-star hotel

1601 I-H 35 North, San Marcos, TX 78666, USA

Texas State University · 0.8 km · 8 min walk

  • Pool
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

Show more details

Pets: Pets allowed (dogs only)*

Nearby

  • Texas State University — 0.8 km, 8 min walk
  • San Marcos River — 3.0 km, 2 min drive
  • Bobcat Stadium — 2.3 km, 3 min drive

From USD 62.00

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Motel 6 San Marcos, TX - North allows check-in for 18 year-old guests

Motel 6 San Marcos, TX - North

5.6/10 728 reviews

2.0-star hotel

1701 N I 35, San Marcos, TX 78666, USA

Texas State University · 1.5 km · 17 min walk

  • Pool
  • Air conditioning

Minimum check-in age: 18

Show more details

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

Pets: Pets stay free (2 total, up to 30 lbs per pet)

Nearby

  • Texas State University — 1.5 km, 17 min walk
  • Blanco Shoals Natural Area — 2.3 km, 1 min drive
  • Rio Vista Park — 3.4 km, 3 min drive

From USD 62.00

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Econo Lodge San Marcos University Area allows check-in for 18 year-old guests

Econo Lodge San Marcos University Area

4.6/10 665 reviews

2.0-star hotel

811 S Guadalupe St, San Marcos, TX 78666, USA

San Marcos River · 1.0 km · 12 min walk

  • Pool
  • Free WiFi
  • Air conditioning

Minimum check-in age: 18

Show more details

Pets: Pets allowed (2 total, up to 40 lbs per pet)*

Nearby

  • San Marcos River — 1.0 km, 12 min walk
  • Rio Vista Park — 1.0 km, 12 min walk
  • John J. Stokes Sr. San Marcos River Park — 1.2 km, 14 min walk

From USD 108.00

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Nearby Cities With 18+ Hotels

Kyle 9 mi · 2 hotels
Wimberley 12 mi · 5 hotels
Buda 15 mi · 5 hotels
New Braunfels 16 mi · 7 hotels
Canyon Lake 20 mi · 3 hotels
Austin 31 mi · 57 hotels
Gonzales 38 mi · 2 hotels
Manor 41 mi · 2 hotels
Cedar Park 45 mi · 3 hotels
San Antonio 45 mi · 92 hotels
Round Rock 48 mi · 6 hotels
Georgetown 57 mi · 2 hotels
Houston 153 mi · 145 hotels
Dallas 213 mi · 25 hotels

See all Texas cities with 18+ hotels

San Marcos Hotel Check-In FAQ

Can you check into a hotel in San Marcos at 18?

Yes. 9 hotels in San Marcos 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 San Marcos?

Often, yes. Of the 9 hotels listed here, 6 accept debit cards and 6 accept cash, according to Hotels.com, including Best Western San Marcos, Baymont Inn & Suites by Wyndham San Marcos Outlet Malls and Motel 6 San Marcos, TX. 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 San Marcos?

Check-in starts between 2 PM and 3 PM at the hotels listed here, most often at 3 PM (7 of 8). Check-out is usually at 11 AM.

Which 18+ hotel is closest to Texas State University?

Motel 6 San Marcos, TX is the closest of the hotels listed here, 0.5 mi away, followed by Howard Johnson by Wyndham San Marcos (0.5 mi) and Days Inn by Wyndham San Marcos (0.6 mi).

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

Motel 6 San Marcos, TX had the lowest observed starting price, from $60 per night when we checked in November 2026, against a median of $75 for the 9 hotels with a listed price. Prices change with dates: select your dates to see the current price on Hotels.com.