How Much Weed Is a Felony in Idaho: 3 Ounces and Trafficking

In Idaho, possessing more than three ounces of marijuana is a felony, punishable by up to five years in prison, a fine of up to $10,000, or both.¹ That three-ounce line is one of the lowest felony thresholds in the country, and Idaho recognizes no medical or recreational exception. Anything at or below three ounces is a misdemeanor, and quantities at one pound or 25 plants trigger a separate trafficking statute with mandatory minimum prison time.

The Three-Ounce Line

Idaho draws a single sharp line between misdemeanor and felony possession, measured by net weight.

Three ounces or less is a misdemeanor. The maximum penalty is one year in jail, a fine of up to $1,000, or both. Adults 18 and older also face a mandatory minimum fine of $300 on top of any other penalty imposed.¹

More than three ounces is a felony carrying up to five years in prison and up to a $10,000 fine.¹ There is no intermediate tier. A fraction of an ounce over the threshold jumps the maximum sentence from one year to five.

Concentrates and Edibles Count by Total Weight

Idaho’s marijuana statute covers all parts of the cannabis plant, any extract, and any preparation containing THC.¹ Wax, shatter, vape cartridges, and edibles all fall under the same three-ounce threshold as flower. The state does not carve out separate, smaller thresholds for concentrates the way some jurisdictions do.

That matters because a handful of vape cartridges or a few edibles can add up faster than people expect. The charge turns on the combined net weight of whatever form the marijuana takes, not on THC content.

Growing and Delivery Are Separate Felonies

Cultivating even one marijuana plant in Idaho is a felony. Growing falls under the state’s prohibition on manufacturing a controlled substance, and there is no minimum plant count for the charge to attach. The same statute covers delivering marijuana or possessing it with intent to deliver.

The penalty for manufacturing, delivering, or possessing with intent to deliver is up to five years in prison, a fine of up to $15,000, or both.² Note that the fine ceiling here is $15,000, higher than the $10,000 cap on simple felony possession. Prosecutors don’t need to prove a completed sale; packaging materials, scales, and large amounts of cash can support an intent-to-deliver theory even when the weight is modest.

Trafficking Thresholds and Mandatory Minimums

At one pound or 25 plants, the charge moves from ordinary felony possession to trafficking under Idaho Code § 37-2732B. Trafficking carries mandatory minimum prison sentences a judge cannot suspend or reduce, along with mandatory minimum fines. The maximum across all tiers is 15 years in prison and a $50,000 fine.³

1 to under 5 pounds, or 25 to 49 plants: mandatory minimum of one year in prison and a $5,000 fine.
5 to under 25 pounds, or 50 to 99 plants: mandatory minimum of three years in prison and a $10,000 fine.
25 pounds or more, or 100 plants or more: mandatory minimum of five years in prison and a $15,000 fine.

Plant counts apply regardless of size. A seedling counts the same as a mature plant. Weight is measured at seizure or as soon as practicable afterward, so moisture content, stems, and attached plant material are included in the total.³

Paraphernalia Is a Separate Charge

Idaho treats drug paraphernalia possession as its own misdemeanor, punishable by up to one year in jail, a fine of up to $1,000, or both.⁴ It applies even when no marijuana is found alongside it, and it is routinely stacked on top of a possession count. Someone caught with marijuana and a pipe can be charged with two offenses.

What a Felony Conviction Costs Beyond the Sentence

A felony marijuana conviction in Idaho brings consequences that outlast the prison term and fine.

Federal law permanently bars anyone convicted of a crime punishable by more than one year of imprisonment from possessing firearms or ammunition, and every felony marijuana offense in Idaho meets that threshold.⁵ The ban is nationwide, and violating it is itself a federal felony.

Idaho suspends voting rights while a person is serving a felony sentence, including probation and parole. Voting rights are automatically restored once the full sentence is complete.

Law enforcement can also seize property they believe is connected to drug activity. Civil forfeiture targets the property itself and can proceed without a criminal conviction, and recovering seized cash, vehicles, or accounts typically requires the owner to show the property was not tied to drug activity.

A felony drug record appears on background checks and can disqualify applicants from jobs requiring professional licensing, security clearances, or work with vulnerable populations. Many landlords screen for felonies as well. Federal student aid is one area that has eased: as of 2021, the FAFSA no longer asks about drug convictions, so a past conviction will not by itself block Pell Grants, work-study, or federal student loans.

Federal Rescheduling Would Not Change Idaho Penalties

The federal government is considering reclassifying marijuana from Schedule I to Schedule III, with a formal hearing pending after a December 2025 executive order directing the attorney general to expedite the process. Even if rescheduling goes through, it would not legalize marijuana federally and would not override state criminal statutes. Idaho’s three-ounce felony threshold, trafficking tiers, and mandatory minimums remain in effect unless the Idaho Legislature amends them directly.¹

1
Idaho State Legislature. Idaho Code 37-2732 – Prohibited Acts A Penalties
2
Idaho State Legislature. Idaho Code 37-2732 – Prohibited Acts A Penalties
3
Idaho State Legislature. Idaho Code 37-2732B – Trafficking
4
Idaho State Legislature. Idaho Code 37-2734A – Prohibited Acts D
5
Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts