# Key Cannabis Dispensary O'Fallon

> Adult-use dispensary in St Charles, Missouri, United States.

Source page: https://420.camp/weed/united-states/missouri/st-charles/key-cannabis-dispensary-o-fallon-monticello  
Data last changed 2026-10-18.  
Published by 420.camp — quote with attribution and a link (https://420.camp/license). A listing is not proof of a licence.

## Facts

- **Type:** Adult-use dispensary
- **Location:** St Charles, Missouri, United States
- **Address:** 6700 State Rte N, St Charles, MO 63304, USA
- **Phone:** +1 636-720-9830
- **Website:** https://keycannabis.com/shop/ofallon-mo/?utm_source=terrayn_gbp&utm_medium=organic&utm_campaign=ofallon
- **Email:** customercare@keycannabis.com
- **Minimum age:** 21
- **ID required:** yes
- **Google rating:** 4.6 from 598 reviews
- **Verification:** details confirmed against sources
- **Products:** flower, pre rolls, edibles, concentrates, vapes, oils tinctures, topicals, accessories
- **Amenities:** card payment, atm, pickup, online ordering, loyalty program
- **Photos:** 1

## Opening hours

- Monday–Wednesday 08:00–21:45
- Thursday–Saturday 08:00–01:45
- Sunday 08:00–21:45

## About Key Cannabis Dispensary O'Fallon

Key Cannabis is an adult-use cannabis dispensary at 6700 State Rte N in St. Charles, Missouri. Its product range includes flower, pre-rolls, edibles, concentrates, vapes, tinctures, topicals, and cannabis accessories.

## The law in St Charles

Cannabis rules for St Charles, Missouri, United States, as facts with sources: https://420.camp/weed/united-states/missouri/st-charles.md