Psilocybin law in every state
Psilocybin law · IA
Is psilocybin legal in Iowa?
ProhibitedSchedule I federally
Psilocybin is illegal in Iowa: it is a Schedule I controlled substance under Iowa Code 124.204, and a first offense of possession is a serious misdemeanor.
Psilocybin is a controlled substance under state law with no programme for its use. Last checked 26 Oct 2026. Pending bills are re-checked weekly against the legislature; last change recorded 26 Oct 2026. Not legal advice.
Current status
- Psilocybin and psilocyn are listed as hallucinogenic substances in Schedule I, Iowa Code 124.204(4)(s) and (t). (Iowa Legislature, current page)
- Governor Kim Reynolds vetoed HF 383, a crystalline polymorph psilocybin bill that passed the House 92-0 and the Senate 47-0, on 11 June 2025. (Iowa Legislature, 11 Jun 2025)
- HF 978, which would have created a regulated system for producing and administering psilocybin, passed the House 84-6 on 21 April 2025 but never received a Senate floor vote. (Iowa Legislature, 1 May 2026)
Decriminalized cities and counties
None found as of 26 Oct 2026.
A local lowest-priority measure tells city or county police and prosecutors where to spend their time. It does not change state or federal law, and state or federal officers can still enforce it.
Bills
| Bill | What it would do | Status |
|---|---|---|
| HF 9782025-2026 (91st General Assembly) | A bill for an act relating to the production and administration of psilocybin, and providing penaltiesWould have created a regulated system to produce psilocybin and administer it to patients. | Passed House 21 April 2025; reported by Senate Ways and Means with amendment 1 May 2026; no Senate vote before adjournment (Iowa Legislature, 1 May 2026) |
| HF 20852025-2026 (91st General Assembly) | A bill for an act relating to the production and administration of psilocybin and providing penaltiesWould have created a regulated psilocybin production and administration system. | Referred to House Health and Human Services; subcommittee meeting set for 26 January 2026 was cancelled; died (Iowa Legislature, 22 Jan 2026) |
| SF 21512025-2026 (91st General Assembly) | A bill for an act removing psilocybin and psilocyn from the list of schedule I controlled substancesWould have removed psilocybin and psilocyn from Schedule I. | Assigned to Senate Health and Human Services subcommittee 5 February 2026; died (Iowa Legislature, 5 Feb 2026) |
| HF 3832025-2026 (91st General Assembly) | A bill for an act relating to the controlled substance crystalline polymorph psilocybinAddressed the status of crystalline polymorph psilocybin under Iowa's controlled substances law. | Passed House 92-0 and Senate 47-0; vetoed by Governor 11 June 2025 (Iowa Legislature, 11 Jun 2025) |
| HF 3512025-2026 (91st General Assembly) | A bill for an act removing psilocybin and psilocyn from the list of schedule I controlled substancesWould have removed psilocybin and psilocyn from Schedule I. | Referred to House Public Safety 12 February 2025; died (Iowa Legislature, 12 Feb 2025) |
Penalties
- Knowingly or intentionally possessing a controlled substance without a valid prescription is a serious misdemeanor for a first offense, an aggravated misdemeanor with one prior drug conviction, and a class D felony with two or more priors (Iowa Code 124.401(5)(a)). (Iowa Legislature, current page)
Federal law applies in Iowa too
- Peyote and mescaline are listed in Schedule I(c) of the Controlled Substances Act, as are psilocybin, psilocyn, DMT and ibogaine. (Legal Information Institute (Cornell) reproducing the U.S. Code, current)
- Outside the exemptions, distributing a Schedule I substance not named in the large-quantity tiers carries up to 20 years and a fine of up to $1,000,000 for an individual on a first offence (21 U.S.C. 841(b)(1)(C)); simple possession carries up to 1 year and a minimum fine of $1,000 on a first offence (21 U.S.C. 844(a)). (Legal Information Institute (Cornell) reproducing the U.S. Code, current; Legal Information Institute (Cornell) reproducing the U.S. Code, current)
Questions and answers
- Is psilocybin legal in Iowa?
- Psilocybin is illegal in Iowa: it is a Schedule I controlled substance under Iowa Code 124.204, and a first offense of possession is a serious misdemeanor.
- Has any city in Iowa decriminalized psilocybin?
- We found no city or county measure in Iowa that makes psilocybin a low enforcement priority, as of 26 Oct 2026.
- Are there psilocybin bills in Iowa?
- None is pending. Recent bills: HF 978, Passed House 21 April 2025; reported by Senate Ways and Means with amendment 1 May 2026; no Senate vote before adjournment; HF 2085, Referred to House Health and Human Services; subcommittee meeting set for 26 January 2026 was cancelled; died; SF 2151, Assigned to Senate Health and Human Services subcommittee 5 February 2026; died; HF 383, Passed House 92-0 and Senate 47-0; vetoed by Governor 11 June 2025; HF 351, Referred to House Public Safety 12 February 2025; died.
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