Marijuana remains illegal in Idaho for both recreational and medical use. The state has no legal marijuana dispensaries, no medical marijuana patient program and no legal home cultivation.
Possession of three ounces or less is a misdemeanor, while possession of more than three ounces is a felony. Larger quantities can result in marijuana trafficking charges and mandatory prison sentences.
This page covers Idaho marijuana possession laws, home cultivation, medical marijuana, hemp products, public consumption and penalties. For laws in other states, visit The Marijuana Herald’s Marijuana Laws by State guide.
Last updated: September 14, 2026.
Idaho Marijuana Laws at a Glance
| Topic | Idaho law |
|---|---|
| Recreational marijuana | Illegal |
| Medical marijuana program | None |
| Legal personal possession allowance | None |
| Possession of three ounces or less | Misdemeanor |
| Possession of more than three ounces | Felony |
| Legal marijuana dispensaries | None |
| Marijuana home cultivation | Illegal |
| Out-of-state medical marijuana cards | Do not authorize marijuana possession in Idaho |
| Public marijuana consumption | Illegal |
| Marijuana delivery | No legal recreational or medical delivery system |
| Marijuana trafficking threshold | One pound or more, or 25 or more plants |
Is Recreational Marijuana Legal in Idaho?
No. Recreational marijuana is illegal in Idaho.
There is no legal amount of recreational marijuana that an adult may possess under state law. Idaho has not decriminalized small amounts: possession remains a criminal offense rather than a civil violation.
Possession, cultivation, manufacture and sale of marijuana remain prohibited. These restrictions apply to residents and visitors.
Is Medical Marijuana Legal in Idaho?
No. Idaho does not have a medical marijuana program.
There is no state medical marijuana card, patient possession allowance or system of licensed medical marijuana dispensaries. A recommendation or medical marijuana card issued by another state does not provide protection from Idaho’s marijuana possession laws.
Certain federally approved prescription medications, including the CBD medication Epidiolex, can be legally used when prescribed in accordance with applicable law. This does not establish a medical marijuana program or authorize patients to possess marijuana flower, dispensary edibles or other marijuana products.
Can You Buy Marijuana or Have It Delivered in Idaho?
No. Idaho has no legal recreational marijuana stores, medical marijuana dispensaries or licensed marijuana delivery system.
Purchasing marijuana from an online seller or a dispensary in another state does not make possessing it in Idaho legal. The same applies to marijuana delivered or shipped to an Idaho address.
Legal hemp and CBD products are a separate category, discussed below.
Can You Grow Marijuana at Home in Idaho?
No. Idaho does not allow marijuana home cultivation for recreational or medical purposes.
Growing even a small number of marijuana plants is illegal. Cultivation can be prosecuted under Idaho’s laws prohibiting the manufacture of controlled substances.
Possession or cultivation of 25 or more marijuana plants meets the plant-count threshold for marijuana trafficking. The trafficking law applies regardless of the plants’ size or weight. Having fewer than 25 plants does not make cultivation legal.
What Are the Penalties for Illegal Marijuana Possession in Idaho?
Idaho’s penalties increase sharply based on the amount of marijuana involved.
Possession of three ounces or less is a misdemeanor punishable by up to one year in jail and a fine of up to $1,000. For a person age 18 or older, state law also requires a fine of at least $300.
Possession of more than three ounces is a felony punishable by up to five years in prison, a fine of up to $10,000, or both. At one pound or more, the marijuana trafficking provisions apply.
Marijuana Trafficking Penalties
| Marijuana quantity | Mandatory minimum prison sentence | Minimum fine |
|---|---|---|
| One pound to less than five pounds, or 25 to 49 plants | One year | $5,000 |
| Five pounds to less than 25 pounds, or 50 to 99 plants | Three years | $10,000 |
| 25 pounds or more, or 100 or more plants | Five years | $15,000 |
Marijuana trafficking can carry a maximum sentence of 15 years in prison and a maximum fine of $50,000.
A person does not have to sell marijuana to face trafficking charges. Knowing possession of an amount meeting the statutory threshold can qualify.
Can You Bring Marijuana Into Idaho From Another State?
No. Marijuana purchased legally in another state does not become legal when brought into Idaho.
Once marijuana is possessed within Idaho, the state’s possession laws apply. A dispensary receipt or an out-of-state medical marijuana card does not create an exception.
This is particularly relevant for people traveling from neighboring states with legal marijuana access. Products such as marijuana flower, THC edibles and vape cartridges remain subject to Idaho law after crossing the border.
Can You Use Marijuana in Public or Drive Under Its Influence in Idaho?
No. Public marijuana use is illegal. Idaho also prohibits being under the influence of marijuana in public.
Driving under the influence of marijuana is a separate offense. A driver can face impaired-driving consequences even if the marijuana was consumed in a state where its use was legal. Idaho’s impaired-driving restrictions apply to drugs as well as alcohol.
Are CBD and Hemp Products Legal in Idaho?
Some hemp and cannabidiol (CBD) products are legal, but Idaho distinguishes between licensed industrial hemp activities and finished products sold to consumers.
According to the Idaho Office of Drug Policy, retail CBD products must be derived from lawful industrial hemp and contain no THC. A CBD product containing 0.3% THC does not qualify simply because it is labeled “hemp” or complies with another state’s rules.
Idaho’s licensed industrial hemp program allows qualifying hemp with a total THC concentration of no more than 0.3%. That production standard does not create a general allowance for consumers to possess THC-containing CBD products.
Are THCA, Delta-8 and Hemp-Derived THC Legal in Idaho?
Idaho does not provide a general retail exception for intoxicating THC products simply because they are made from hemp.
The state counts THCA when determining whether a plant or product meets its industrial hemp THC limit. High-THCA flower therefore cannot qualify as legal hemp simply by having a low concentration of delta-9 THC before heating. Delta-8 products also cannot rely on the “hemp-derived” label to avoid Idaho’s THC restrictions.
The Idaho State Department of Agriculture is updating its hemp rules to reflect legislation passed in 2026. Those changes should not be confused with legalization of recreational or medical marijuana.
Is Marijuana Legal in Idaho in 2026?
No. Idaho continues to prohibit recreational and medical marijuana, including personal possession and home cultivation.
Small amounts can result in misdemeanor charges, while possession of more than three ounces is a felony. Possession of at least one pound or 25 marijuana plants can result in trafficking charges carrying mandatory prison time.
The state’s industrial hemp program and allowance for certain zero-THC CBD products do not provide a general exception for marijuana.
Official Sources
- Idaho Office of Drug Policy: Marijuana
- Idaho Office of Drug Policy: Cannabidiol (CBD)
- Idaho Code § 37-2732: Marijuana Possession and Other Controlled Substance Penalties
- Idaho Code § 37-2732B: Marijuana Trafficking and Mandatory Sentences
- Idaho State Department of Agriculture: Hemp Frequently Asked Questions
