Every type of knife is legal to carry in Texas if you are 18 or older, including switchblades, Bowie knives, daggers, swords, and machetes. The only meaningful restriction is blade length: a knife with a blade longer than 5.5 inches is a “location-restricted knife” under state law, and carrying one into places like schools, courts, bars, or airports can bring charges ranging from a small fine to a felony.
No Category of Knife Is Banned
Texas prohibits no category of knife. The state’s list of prohibited weapons under Section 46.05 of the Penal Code covers things like explosive devices, machine guns, zip guns, and chemical dispensing devices.1State of Texas. Texas Penal Code 46.05 – Prohibited Weapons Knives are not on it. Design, mechanism, and name do not matter. A switchblade is treated the same as a kitchen knife, and an adult can legally walk down a Texas street with a sword.
Texas also draws no distinction between open and concealed carry for knives. You can wear a knife openly on your hip or tuck it under a jacket, and the method does not change the legal analysis. Blade length and location do.
The 5.5-Inch Line
Texas Penal Code Section 46.01 defines a “location-restricted knife” as any knife with a blade over five and one-half inches.2State of Texas. Texas Penal Code Chapter 46 – Weapons A knife at or under 5.5 inches can go virtually anywhere in Texas without legal issue. Once the blade crosses that threshold, the location rules kick in.
Where a Location-Restricted Knife Cannot Go
Section 46.03 of the Penal Code lists places where carrying a location-restricted knife is a criminal offense.3State of Texas. Texas Penal Code 46.03 – Places Weapons Prohibited They include:
- Schools, postsecondary institutions, school-sponsored activities, and school transportation
- Polling places on election day or during early voting
- Court premises and offices used by the court
- Racetracks
- Secured areas of airports
- Within 1,000 feet of a designated execution site on the day of a scheduled execution
- Bars and restaurants that earn the majority of their income from on-premises alcohol sales (“51% establishments”)
- High school, collegiate, and professional sporting events
- Correctional facilities and civil commitment facilities
- Hospitals, nursing facilities, and mental health facilities
- Amusement parks
Penalties Depend on the Location
Unlike firearm violations under the same statute, knife penalties are tiered. The gap between the tiers is wide:
- Schools and educational institutions: third-degree felony, 2 to 10 years in prison and a fine up to $10,000.
- Sporting events, civil commitment facilities, and certain other designated locations: Class A misdemeanor, up to one year in jail and a fine up to $4,000.4State of Texas. Texas Penal Code Chapter 12 – Punishments
- Most other prohibited locations, including courts, polling places, racetracks, airports, bars, hospitals, and amusement parks: Class C misdemeanor, maximum fine of $500 and no jail time.5State of Texas. Texas Penal Code 12.23 – Class C Misdemeanor
The school tier is the one to remember. A machete in a bar is a $500 fine. The same machete on a school campus is a potential prison sentence.
Carrying a Knife Under 18
Anyone under 18 commits an offense by carrying a location-restricted knife anywhere, under Section 46.02 of the Penal Code. The offense is a Class C misdemeanor with a fine up to $500.2State of Texas. Texas Penal Code Chapter 46 – Weapons Three exceptions apply. A minor can carry a location-restricted knife:
- On property the minor owns or controls
- Inside or traveling directly to a vehicle or watercraft the minor owns or controls
- Under the direct supervision of a parent or legal guardian
Knives with blades of 5.5 inches or shorter are not location-restricted, so minors can generally carry those without running into Section 46.02. A minor who takes a location-restricted knife into one of the Section 46.03 locations faces the steeper penalties on that list.
It is a Class A misdemeanor to sell, lease, or give a location-restricted knife to anyone under 18, punishable by up to a year in jail and a $4,000 fine.6State of Texas. Texas Penal Code 46.06 – Unlawful Transfer of Certain Weapons Written parental consent for a sale, or effective parental consent for a non-sale transfer, is an affirmative defense.
Federal Property and Air Travel
State law stops at the door of federal property, and the federal rules are much stricter than Texas’s 5.5-inch threshold.
In a federal building, possessing a dangerous weapon is a crime. The one narrow exception is a pocket knife with a blade shorter than 2.5 inches.7Office of the Law Revision Counsel. 18 U.S. Code 930 – Possession of Firearms and Dangerous Weapons in Federal Facilities Federal courthouses, IRS offices, and Social Security offices all fall under that rule.
Post offices are stricter still. Postal regulations prohibit carrying any weapon, openly or concealed, on postal property, with no blade-length exception.8eCFR. 39 CFR 232.1 – Conduct on Postal Property
For air travel, the TSA prohibits knives of any size in carry-on bags. Knives can go in checked luggage if sheathed or securely wrapped. Rounded or blunt-edged knives like butter knives are the exception.9Transportation Security Administration. Knives
Cities Cannot Add Their Own Knife Rules
Texas preempts local knife regulation. Section 229.001 of the Local Government Code prohibits municipalities from adopting or enforcing any regulation related to the transfer, possession, carrying, ownership, storage, or transportation of knives.10State of Texas. Texas Local Government Code 229.001 – Firearms; Air Guns; Archery Equipment; Knives; Explosives Any conflicting city ordinance is void, so there is no city-by-city patchwork to research when you travel inside Texas.
Private Property Owners Can Say No
Private property is a separate matter. Under Section 30.05 of the Penal Code, a property owner or someone with authority over the property can prohibit entry with weapons, including knives. Entering with a weapon after being told not to, by a posted sign or in person, can bring a criminal trespass charge, and refusing to leave after a personal warning can escalate the offense. Check for posted signs and honor a verbal request to leave even when state law would otherwise permit the carry.