Circle K is a clean and nice gas station, considered the best in Boulder by some. Reviews note the friendly and kind staff. It offers a gas discount card, a drive-through carwash, working vacuums, and an air pump. The store provides snacks, candy, essentials, and consistently fresh fountain pop. Some customers report a very positive and consistent experience. Criticisms include required TV ads at the pump, occasional cluttered walkways, and a desire for improved landscaping with new trees. Overall, it is a preferred location for many despite minor inconveniences.
What I saw today that the store manager did to customers was extremely horrible. I already reported this to the owner of this location. If I could give negative-5 stars I would!
January 2026
Went to fill up and to clean my windshield. I went in and asked if they could fill one of the reservoir so I cleaned my windshield and the man running the store said he would do it later. That doesn’t help my needs and safety now as a Circle K member. Horrible service and last time I will ever use this location
December 2025
They just scratched my car.This carwash have too many problems and they washed my car without soap.
