When you’re finished hanging out or shopping on the famous Pearl Street Mall, come visit us at the Boulder Rio for a little weekend spirit...every single day of the week. Whether you're bringing the family for Mexican food or just bringing your thirst for a good time, it’s always the refreshing, delicious escape you’re looking for!


1101 Walnut Street
Boulder, CO 80302

Main: 303-444-3690
Derek Stoldt, General Manager


  • Sun - Wed, 11a - close (closing time varies)
  • Thu - Sat, 11a - midnight
  • Happy Hour: Mon - Fri, 3 - 6p
  • Late Night Happy Hour: Thur, 9p - midnight
  • Brunch: Sat + Sun, 11a - 4p
  • CLOSED June 18th for The Rio Three-O Block Party in Fort Collins! JOIN US! Click HERE for more details on our 30th Anniversary!


Contact the Manager on Duty


Party Size:



Rio Grande Mexican Restaurant - Boulder (69040) Colorado Reservations

Reservations can be made by calling the Rio directly at 303-444-3690, or through Open Table.  For parties of 13 or more, or if Open Table shows your preferred time unavailable, it will be necessary to call the Rio directly. 


Don't have time to dine-in or pick up a to-go order? We've got you covered! Now offering convenient delivery via our partner Hungry Buffs.

You can also order from Grub Hub. Click on the link below.



Custom Catering available for pickup or delivery for groups of 10 or more (24 hours notice is required for delivery). Please call 303-444-3690 and ask for the manager on duty.



  • Happy Hour (Mon - Fri, 3-6p): $1 off Classic Rio Margs, Big Tex Margs, Ricky’s. $3 drafts, Tecate Cans, shots of Cuervo Cinge. $1 off small plates menu. $3 tacos.
  • Thursday Late Night Happy Hour (Thu, 9p - midnight): $4 Classic Rio Margs, $4 Half Quesadillas

  • The Rio Gives Back - The Boulder Rio will donate 10% of sales each Monday to There with Care Colorado!  Join us every Monday starting May 2nd through May 23rd.  After 30 years, we owe it to our community for our success!

  • Party like it's 1986 - The inception of the Rio started on June 15th, 1986, and we are having a THROWBACK PARTY! Join us on Wednesday, June 15th to Party like it's 1986.  Enjoy a throwback menu (with 1986 prices), and more!  Save the date and check back later for more info. 

  • The Rio Three-O Block Party!  Join us on Saturday, June 18th at the Fort Collins Rio to celebrate our 30th birthday! All other Rio locations will be closed and celebrating in FoCo - Live Music, Memories, and Margs.  For more information, click HERE.

Private Parties:

Memorable, good times at the Rio’s Shift Bar. The Boulder Rio's Shift Bar is a place where you can refresh your spirit with close family and friends – an ideal setting for special occasions, corporate events, banquets, and holiday parties. And when you add in some seriously good Mexican food, fun, and margaritas, your event will definitely be one to remember.

For  information or to book a private event, please contact:

Manager on Duty
Direct: 303-444-3690

Shift Bar Event Brochure Catering Flyer