Store location:
6700 State Route NSaint Charles, MO 63304
Key Cannabis Dispensary O’Fallon - Saint Charles, MO | Cannabis Shop
Key Cannabis Dispensary O’Fallon photo gallery
Key Cannabis Dispensary O’Fallon - Saint Charles, MO | Cannabis Shop
Key Cannabis Dispensary O’Fallon is a THC dispensary in Saint Charles, MO. It is also listed as a cannabis store. Located at 6700 State Route N in Saint Charles. Rated 4.6★ from 570 Google reviews. See opening hours, photos, and the latest reviews on CannabisShop.com.
Opening Hours
Monday: 8:00 AM - 9:45 PM
Tuesday: 8:00 AM - 9:45 PM
Wednesday: 8:00 AM - 9:45 PM
Thursday: 8:00 AM - 1:45 AM
Friday: 8:00 AM - 1:45 AM
Saturday: 8:00 AM - 1:45 AM
Sunday: 8:00 AM - 9:45 PM
Key Cannabis Dispensary O’Fallon map
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Reviews
Amanda was very welcoming. It was clear to me that I didnt know what the heck I was doing. She was awesome. Made me feel very comfortable while explaining choices.
- John
December 6, 2025
Brendon G at Key dispensary was awesome. I am an old dude new to cannabis, and he answered all my newb questions about terpenes and aroma and everything else. Highly recommended.
- Greggers Grunderson
October 23, 2025
You can also view more reviews on Google.