South Dakota Marijuana Penalties

South Dakota Marijuana Possession Penalties — SDCL § 22-42-6

South Dakota’s possession-penalty schedule under SDCL § 22-42-6 is, by national standards, severe. Even 2 ounces or less of marijuana is a Class 1 misdemeanor punishable by up to 1 year in jail and a $2,000 fine. Possession of more than 10 lbs is a Class 3 felony with up to 15 years in prison. Concentrates are punished even more severely.

Legal Disclaimer: This information reflects South Dakota cannabis law as of June 2026 and is for educational purposes only. It is not legal advice. Laws and regulations change — always verify current rules with the South Dakota Department of Health Medical Cannabis Program or a qualified attorney. Cannabis remains illegal under federal law.

Last verified: May 2026

The Possession Schedule

Quantity	Classification	Maximum Penalty
2 oz or less	Class 1 misdemeanor	Up to 1 year county jail + $2,000.
More than 2 oz – ½ lb	Class 6 felony	Up to 2 years prison + $4,000.
½ lb – 1 lb	Class 5 felony	Up to 5 years + $10,000.
1 lb – 10 lbs	Class 4 felony	Up to 10 years + $20,000.
More than 10 lbs	Class 3 felony	Up to 15 years + $30,000.
Concentrate / hashish (any amount) — § 22-42-2	Class 4 felony	Up to 10 years + $20,000; 1-year mandatory minimum on first conviction.
School-zone enhancement (within 1,000 ft school / 500 ft other) — § 22-42-7	Add-on	5-year mandatory minimum.
Habitual offender enhancement — § 22-7-7 / § 22-7-8.1	Class up	Elevates 1–2 felony classes for prior felony convictions.

Source: SDCL § 22-42-6 (possession), § 22-42-2 (concentrates), § 22-42-7 (distribution + school zones). South Dakota’s concentrate-felony rule is unusually severe: small amounts of dabs or vape cartridges produce a Class 4 felony charge that comparable conduct would not generate in Minnesota or Montana.

Why SD Penalties Are Among the Harshest in the Region

Several features make SDCL § 22-42-6 unusually harsh:

Misdemeanor floor at any quantity. Most adult-use states have decriminalized possession of small amounts (often 1–3 oz) to a civil-penalty status. SD treats up to 2 oz as a Class 1 misdemeanor with up to 1 year of jail exposure.
Felony at 2 oz to 1/2 lb. Some states do not classify possession of personal-use quantities as felonies. SD treats anything more than 2 oz as a Class 6 felony.
Concentrate carveout. Possession of any amount of hashish or concentrates is a Class 4 felony under § 22-42-2 with a 1-year mandatory minimum on first conviction. See trafficking page.
Habitual-offender enhancements. SDCL § 22-7-7 and § 22-7-8.1 elevate penalties one or two felony classes for prior felony convictions.
School-zone enhancement. Distribution within 1,000 ft of a school adds a 5-year mandatory minimum under § 22-42-7.

What "Possession" Means in South Dakota

SD recognizes both actual possession (physically holding or carrying the cannabis) and constructive possession (having dominion or control over the place where cannabis is found, with knowledge of its presence). Passenger-in-vehicle, roommate-in-residence, and similar constructive-possession theories are routinely charged.

The state also recognizes the unique "internal possession" theory under SDCL § 22-42-5.1 + the Schroeder/Whistler case law — permitting prosecution when the only "possession" evidence is metabolite presence in urinalysis. See internal possession page.

Penalty Mitigation Options

Active medical-cannabis card. Registered patients with valid SD medical cards or out-of-state cards (with prior visiting-patient registration) are protected from prosecution for compliant possession (3 oz / 14-day rolling window).
Diversion / suspended imposition of sentence. Available in some jurisdictions for first-offense low-quantity possession. Successful completion of the diversion period results in dismissal.
Plea negotiation. Felony-quantity cases can sometimes be reduced to misdemeanor. School-zone enhancements can sometimes be dropped in exchange for plea.
Suppression motion. Fourth Amendment challenges to the search that produced the cannabis. Highway interdiction stops are particularly fertile territory for suppression-motion practice.

Practical Notes

Get an attorney immediately. SD penalties are severe enough that pro se defense is risky.
Do not consent to vehicle searches. "I do not consent to a search" is the lawful response. Officers need probable cause or a warrant absent your consent.
2 oz is the misdemeanor ceiling. A passenger’s personal stash can put driver, passengers, and roommates all at risk under constructive-possession theory.
Concentrates are felonies regardless of quantity. Vape carts and dabs require special caution.