Westminster, CO Cannabis Regulations: Dispensary Zoning (2026)
Key Facts
- Dispensaries allowed
- none, citywide prohibition
- Cultivation/manufacturing
- also prohibited citywide
- Personal use
- allowed for adults 21+
- Legal basis
- home rule + Colo. Const. Art. XVIII §16
- Violation
- criminal offense + public nuisance
Summary
Westminster prohibits marijuana establishments citywide: it is unlawful to operate a medical marijuana center, optional premises cultivation operation, marijuana-infused products manufacturer, or any recreational marijuana establishment anywhere in the City.
5-10-3. - Uses Prohibited. It is unlawful for any person to operate, cause to be operated or permit to be operated a medical marijuana center, an optional premises cultivation operation, or a medical marijuana-infused products manufacturing facility, or a marijuana establishment in the City.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 12).
Full Breakdown
" There is no zoning district in Westminster where any of these uses are allowed; the ban applies citywide rather than steering the businesses to an industrial or commercial zone. The City Council grounded this in its home rule authority under Article XX, Section 6 of the Colorado Constitution, combined with the express authorization in Article XVIII, Section 16 of the Colorado Constitution allowing municipalities to prohibit marijuana establishments by ordinance, finding that the secondary impacts of retail marijuana sale, cultivation, and manufacturing have an unacceptable adverse effect on health, safety, and welfare.
C. Personal use is untouched: Section 5-10-6 states the chapter does not prohibit or regulate personal recreational use of marijuana by adults 21 or older under Article XVIII, Section 16, as long as that personal use does not involve selling marijuana or operating a marijuana establishment in the City. In short, an adult may possess and consume marijuana personally in Westminster, but no storefront dispensary, grow operation, or infused-products manufacturer can legally locate anywhere within city limits.
Violations & Fines
Section 5-10-7 makes any violation of the chapter a criminal offense punishable by fine or imprisonment under Section 1-8-1, W.M.C., with each day of continued violation charged as a separate offense, and it separately declares the operation of a prohibited marijuana business a public nuisance subject to abatement under Chapter 4 of Title VIII.
Frequently Asked Questions
Can I open a marijuana dispensary in Westminster, Colorado?
Is personal marijuana use illegal in Westminster because of this ban?
What happens if someone operates an illegal dispensary in Westminster?
Sources & Official References
Other rules in Westminster
Compare Westminster to another location·View the Colorado cannabis regulations overview
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Dispensary Zoning in Nearby Cities
How other cities in Adams County handle dispensary zoning.