Delicious Tex Mex and Margaritas - located just off Boulder’s famous Pearl Street Mall! We are open for dine-in service as well as food and margaritas for takeout. Whether you're coming in to unwind and dine with us, to have a drink on our rooftop patio with sweeping views of the Flatirons, bringing food home for the family or just grabbing some margs for a fun night at home, the Boulder Rio is a delicious escape.
One of my favorite restaurants in Boulder! Get the churros!
KL
Karen Lorden
Oct 11, 2025
5.0
I’m in town from Chicago for the CU game and my friend and I stopped here after the pep rally for some drinks and snacks. The folks that work there were SO WONDERFUL, and it was wild busy but they were all over it. Ari and Ben were the bartenders and were so kind and helpful! There was another very nice man, Alex, who was handling a pretty rowdy group very well. Such a great experience! Highly recommend!
HC
Hugh Chandler
Oct 8, 2025
5.0
Fantastic food in a beautiful environment!
Service was great and fantastic view from the roof top seating!
AY
Absalon Yoke
Sep 29, 2025
5.0
Really appreciate these folks letting me use the bathroom while waiting for my cab in the rain when others wouldn’t. Common courtesy. Thank you very much!
BM
Bessie Mullane
Sep 28, 2025
4.0
queso del mar and guac were excellent. no good margs
but service was mid. waited 30 min to be seated when we had a reservation. waited 15 more min to order by which time i was hangry. other issues too, seemed short-staffed
Evan was cute though:)
Frequently Asked Questions About Rio Grande Mexican Restaurant
Where are you located?
We are located off Pearl Street on the corner of Walnut & 11th!
Do offer happy hour specials?
Yes, we do! Check out our happy hour menu online which is available Monday through Friday from 3pm to 6pm!
Can you go to the Rio if you’re doing the keto diet?
The Rio has a variety of keto-friendly options available to our diners! Check out our blog post that outlines some of our favorite dishes that can be modified to be low carb.
Do you have a gluten-free menu?
Of course! Check out our gluten-free website on our website or talk with your server to find a delicious gluten-free TexMex meal!
Do you have a vegan menu?
Yes, of course! We are proud to offer vegan choices. Please know that our kitchen is not a dedicated vegan kitchen. Despite our best efforts, it is possible that cross contamination may occur.