St. Louis, MO, MissouriCity guideNorth America

Marijuana Laws

As recorded December 15, 2025 · not verified as current law. Missouri law

Cannabis laws in St. Louis follow Missouri’s state law. City pages reflect the same jurisdiction-wide cannabis framework; local ordinances typically do not override it.

Recreational cannabis is legal for adults 21 and older. Medical cannabis is also available for qualifying patients. Legal risk may exist for possession exceeding allowed limits or public consumption.

Quick facts

  • Recreational: Legal for adults 21+
  • Medical: Available
  • Possession: Legal within state limits for adults
  • Buying/Selling: Legal through licensed retailers
  • Tourists: Same rules apply to visitors

Practical guidance

Avoid cross-border transport of cannabis products. Do not assume informal tolerance equals legality.

Legislative History

Missouri legalized medical cannabis in 2018 through Amendment 2, establishing a patient registration and dispensary system. Recreational cannabis was legalized for adults 21+ in 2022 via Amendment 3, permitting possession of up to 3 ounces, home cultivation of up to six flowering plants, and licensed retail sales with automatic expungement for certain prior offenses.

City guide

St. Louis, Missouri.

Law Enforcement

During Mardi Gras, officers stopped somebody for drinking in public and found six individual bags of a gram each. They took them without bringing charges, which felt surprisingly lenient in the middle of the parade. Missouri law at the time was described as having no medical program and treating more than 35 g as a felony, with arrest or fines possible for smaller amounts. South City police knew the street scene, though undercover operations hadn’t been seen in some areas. Other city encounters ended with a warning. In St. Louis County, people expected a citation or arrest more often. Missouri has since introduced regulated adult use, as covered in Marijuana Laws.

Where to Buy Marijuana

Grand and Vista was the daily open-air market, with opinions ranging from the worst weed imaginable, sometimes mixed with oregano, to good purple. One driver on Vista was waved down by a man on his phone who started at two bags for US$50 and ended at five for the same price, with genuinely good purple in them. Other bags were ordinary and stemmy. The approach people remembered was via Grand from Highways 40 or 44, then Park Avenue, Carr Lane and Vista past the porches. It felt less safe after dark, particularly after 11 p.m. Some sellers also handled crack or asked for rides around the corner. There were reports of cheap flower across the river in East St. Louis, Illinois, including US$5 for 4 g, along with warnings about violence and missing street signs.

Saint Louis University, including Park and Vista off Grand, and possibly WashU were known for connections through students. Good nugs could take time. The SLU uniformed security staff patrolled campus and could call city police. In the Delmar Loop, three or four head shops within walking distance and a friendly local crowd earned the area a reputation as a stoner’s paradise.

Marijuana Prices

  • Downtown bags: US$10 for around 2–3 g, two for US$20, three for US$25 or four for US$35. Occasionally this bought seedless, stemless nuggets.
  • Kind bud or high-quality flower: US$50–60 for 3.5–4 g, with US$60 bags often containing four or five decent buds. Some sellers dropped a US$50 eighth to US$40.
  • Higher grades: US$100–120 per ¼ oz, about US$200 per ½ oz or US$300–400 per oz.
  • Mexican brick in surrounding counties: around US$50 per oz.

Types of Marijuana

Mazar, White Widow, BBWW, Sour Diesel, AK-47, various Hazes, Skunk, Orange Bud and Blueberry strains turned up, although most nugs were just unknown indoor. Some local kind bud was poorly cured and smoked oddly because it was still damp. City schwag tended to beat county schwag. Some bags were good for a bat, others better rolled into a joint or blunt. Asking for kind bud by name could get you sold ordinary flower at a markup.

More Information

Moisture made a noticeable difference. The better buds had been dried enough to smoke evenly without crumbling.

Related destinationMore of Missouri