Are Butterfly Knives Legal in Iowa? (2026)
Yes — Butterfly Knives are legal in Iowa as of 2026.
Quick Answer
Butterfly knives are legal to own and carry in Iowa with no specific restrictions beyond general knife laws. No significant legislative changes in recent years.
- Age restriction: 18+ for purchase
What the Law Says
Iowa law allows the open carry of butterfly knives. A permit is required for the concealed carry of a knife with a blade over 5 inches.
— Iowa Code § 702.7
| Category | Details |
|---|---|
| Possession | Legal |
| Sale & Purchase | Legal |
| Penalties | N/A |
| Age Restriction | 18+ for purchase |
| Pending Legislation | None known |
No significant legislative changes in recent years.
Enforcement Reality
Iowa law is permissive regarding butterfly knives. Enforcement is focused on intent, not the type of knife.
A common mistake is carrying a butterfly knife with a blade over 5 inches concealed, which requires a permit.
Local Exceptions
None identified. State law applies uniformly across Iowa. Local ordinances may still vary — check with your city or county government for any additional rules.
Real-World Scenarios: Butterfly Knives in Iowa
Can You Fly With Butterfly Knives Out of Iowa?
Butterfly Knives may be legal in Iowa, but airports are federal territory. TSA screens under federal rules, not state law. If the item is federally restricted, expect problems at the checkpoint. Even if it clears TSA, the laws of your destination state apply the moment you land. Plenty of travelers have learned this the hard way — legal when they packed, criminal when they arrived.
Can You Cross State Lines With Butterfly Knives From Iowa?
This is where people get burned. Iowa treats butterfly knives as legal, but neighboring Wisconsin treats it as restricted. The law changes at the state line — not gradually, not with a warning sign, instantly. "I bought it legally" is not a defense in the new state. Interstate highways near the Iowa/Wisconsin border are known enforcement corridors. If you're driving with out-of-state plates in a state where butterfly knives is illegal, you're a target.
Bottom Line
Butterfly Knives are legal in Iowa. You can carry them without violating state law, though federal rules and local ordinances may still apply. Always verify current law before acting.
Iowa vs. the Rest of the US
Across the US, carrying a butterfly knife is fully legal in 39 states, restricted in 10, and illegal in 1. Iowa falls in the LEGAL category.
View the full 50-state map →Reviewed by cross-referencing the cited state statute against current legislative databases and regulatory publications.
Sources & Verification
This page was reviewed by Ethan Harper by comparing the legal status against the cited state statute. AllowedHere is an informational resource and does not provide legal advice. Consult a licensed attorney for guidance specific to your situation.
Comprehensive Iowa Legal Guides
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