Cannabis Regulations in St. Charles County, MO (2026)

2 rules for unincorporated St. Charles County, Missouri.

Verified from official government sources

Note: These county rules apply to unincorporated areas of St. Charles County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Dispensary Zoning

St. Charles County has not opted out of hosting marijuana facilities: it taxes adult-use sales at 3% under § 140.100 and instead zones them through a permit process. Every Facility must sit at a fixed, permanent address and pass a Zoning Confirmation before opening, per §§ 405.5072(A) and 405.5073, on top of the 1,000-foot buffer from schools, churches and homes.

St. Charles County Cannabis Facility Location Rules

Significant Restrictions

St. Charles County Code §§ 405.5072(A), 405.5073

A. Except as provided by Section 277.510, each Facility shall be operated from a permanent location, and no Facility shall be permitted to deliver or operate from a movable, mobile, or transitory location. ... Section 405.5073. Compliance Required For Zoning Confirmation. Any proposed location for a Facility must be in compliance with the provisions of Chapter 405 OSCCMo., including but not lim...

Full ordinance details →Official source ↗

Buffer Zones

St. Charles County keeps medical marijuana facilities a minimum of 1,000 feet from churches, schools, residential zoning districts, and agriculturally-zoned parcels that have a house on them. Code § 405.5072(B) sets the buffer, and § 405.5072(D) spells out exactly how that distance is measured for both freestanding buildings and facilities inside a larger structure like a strip mall.

St. Charles County Marijuana Facility Buffers

Significant Restrictions

St. Charles County Code § 405.5072(B)

B. A Facility shall not be operated within one thousand (1,000) feet, as measured by Subsection (D), of the following: 1. A church, synagogue, mosque, temple, or building which is used for religious worship and/or related religious activities; 2. A public or private educational facility, including but not limited to child day-care facilities, nursery schools, preschools, kindergartens, elementa...

Full ordinance details →Official source ↗

All St. Charles County ordinances

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