Is Butterfly Knives Legal in Idaho? (2026)
Yes — Butterfly Knives are legal in Idaho as of 2026.
Quick Answer
Butterfly knives are legal to own and carry in Idaho with no specific restrictions beyond general knife laws. No significant legislative changes in recent years.
- Age restriction: 18+ for purchase
What the Law Says
Idaho law does not restrict the ownership or carry of butterfly knives, except in schools and government buildings where knives with blades over 6 inches are prohibited.
— Idaho Code § 18-3302
| 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
Idaho has very permissive knife laws. Enforcement is minimal unless a knife is used with criminal intent.
A common mistake is carrying a knife with a blade over 6 inches into a school or government building, which is illegal.
Local Exceptions
None identified. State law applies uniformly across Idaho. Local ordinances may still vary — check with your city or county government for any additional rules.
Bottom Line
Butterfly Knives are legal in Idaho. You can carry them without violating state law, though federal rules and local ordinances may still apply. Always verify current law before acting.
Idaho vs. the Rest of the US
Across the US, carrying a butterfly knife is fully legal in 38 states, restricted in 11, and illegal in 1. Idaho falls in the LEGAL category.
View the full 50-state map →Neighboring States
Laws change at state lines. Here is how bordering states compare on Butterfly Knives:
Frequently Asked Questions
Is it legal to carry Butterfly Knives in Idaho?
Can you carry a butterfly knife in Idaho?
What is the age restriction for carrying a butterfly knife in Idaho?
Does the law on carrying a butterfly knife change at the Idaho border?
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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.
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