In most cases, you cannot conceal carry at the zoo. Nearly every zoo in the United States prohibits firearms as a condition of entry, and a growing number of states have made carrying a concealed gun into a zoo a criminal offense regardless of whether you hold a permit. Whether you’re facing a trespass warning or a felony charge depends on four overlapping layers: state sensitive-place statutes, local ordinances, the zoo’s own posted policy, and, for a handful of zoos, federal law.
States That Ban Guns in Zoos by Statute
Some states have added zoos by name to their list of “sensitive places” where concealed carry is prohibited regardless of your permit status. When a state does this, the criminal prohibition applies whether or not the zoo has a sign posted.
California is the clearest case. Under SB 2, concealed-carry license holders are barred from bringing firearms into zoos, museums, parks, stadiums, and more than two dozen other categories of locations. A Ninth Circuit ruling in early 2025 reversed a lower court’s injunction, and the zoo restrictions are now enforceable statewide.1California Department of Justice. Information Bulletin – Additional Restrictions on CCW License Holders
Washington took a narrower approach. Its law prohibits open carry in accredited zoos and aquariums but explicitly exempts anyone licensed to carry a concealed firearm under Washington law.2Washington State Legislature. 2SSB 5444 – House Bill Report A Washington CCW holder can still legally conceal carry at the zoo; someone without a permit cannot openly carry there.
New York tried to add zoos to its sensitive-place list through the Concealed Carry Improvement Act, but a federal court struck that specific provision down, and the zoo prohibition is not being enforced.3New York State. Frequently Asked Questions – New Concealed Carry Law Other states are considering similar designations, and litigation continues to reshape which restrictions actually take effect. Read the current statute for your state before relying on any summary.
Local Ordinances and Preemption
If your state hasn’t addressed zoos by statute, the next question is whether a city or county has. About 45 states have some form of firearms preemption, which strips local governments of the authority to write their own gun rules. In a strong-preemption state, a city cannot declare its zoo a gun-free zone through a local ordinance without state authorization.
In states with weaker preemption or carve-outs for government-owned property, a municipality that operates a zoo may have authority to restrict firearms there. If you’re visiting a city- or county-owned zoo, check for a local ordinance addressing weapons on public property before you assume state law is the only layer.
Zoo Policies, Signs, and Bag Checks
Even where no statute or ordinance bans guns in zoos, the zoo itself almost certainly does. This applies to privately owned facilities and to publicly owned zoos run by nonprofits. The legal basis is ordinary property rights: the operator can set conditions of entry.
Enforcement usually begins at the gate with posted signage and bag screening. Many large zoos require a bag check on entry, and some use metal detectors. What a “no firearms” sign legally means depends on your state. In some states, ignoring a properly posted sign is a criminal offense on its own. In others, the sign has no independent legal force, and the zoo’s only recourse is to ask you to leave and treat refusal as trespassing. That distinction matters: it’s the difference between a firearms charge at the entrance and a warning that only escalates if you don’t comply.
Zoos on Federal Property
A small number of zoos sit on federal land, and their rules are set by federal regulation rather than state law. The Smithsonian’s National Zoo in Washington, D.C. is the prominent example. Smithsonian grounds are governed by federal regulation that prohibits any person from carrying firearms on the premises, openly or concealed, except for official purposes.4eCFR. 36 CFR Part 520 – Rules and Regulations Governing the Buildings and Grounds of the Smithsonian Institution No state permit overrides this.
More broadly, federal law prohibits firearms in any “federal facility,” meaning a building or portion of a building owned or leased by the federal government where federal employees regularly work. A violation carries up to one year in prison.5Office of the Law Revision Counsel. United States Code Title 18 Section 930 If a zoo contains a federal building, that building is off-limits even if the surrounding property is not.
Zoos located within or next to National Park Service land follow a different rule. Since 2010, federal law has allowed firearm possession in national parks as long as you comply with the firearms laws of the state where the park sits.6Office of the Law Revision Counsel. United States Code Title 54 Section 104906 That allowance does not extend to NPS buildings such as visitor centers, ranger stations, or fee-collection offices, which remain federal facilities where firearms are prohibited.7National Park Service. Firearms in National Parks
Permitless Carry Does Not Mean Carry Anywhere
Twenty-nine states now allow some form of permitless concealed carry, sometimes called constitutional carry. This is a frequent source of confusion. Permitless carry means you don’t need a government-issued license to carry a concealed handgun in public. It does not override sensitive-place restrictions, local ordinances, or private-property prohibitions. A permitless-carry state that lists zoos as gun-free has drawn the boundary of where that right extends, and the zoo is outside it.
The spread of permitless carry has also removed the point in the permit process where people used to learn about restricted locations. That responsibility now sits entirely with you.
What Happens If You Carry Anyway
Consequences depend on the source of the prohibition. Violating a state sensitive-place statute like California’s is a firearms-specific criminal charge, ranging from misdemeanor to felony depending on the state. A conviction can bring fines, jail time, and loss of firearm rights.
If the ban is only in the zoo’s posted policy, the immediate exposure is trespass. Staff or security can ask you to leave, and refusal converts it into criminal trespass. Some states treat armed trespass as an aggravated offense with stiffer penalties. Even where they don’t, an arrest tied to a firearm can complicate future permit applications.
On Smithsonian grounds and other federal facilities, penalties are set by federal statute: up to one year in prison for possessing a firearm in a federal facility, and up to five years if prosecutors prove you intended the weapon for use in a crime.5Office of the Law Revision Counsel. United States Code Title 18 Section 930
How to Check Before You Go
Start with the zoo’s website. Most publish guest guidelines or a “Plan Your Visit” page listing prohibited items, and firearms are almost always on it. If the site is silent, call guest services. Two minutes on the phone eliminates the ambiguity.
Then check your state’s sensitive-place statute. If your state has added zoos by name, the zoo’s private policy is beside the point; the criminal prohibition applies either way. If the state hasn’t addressed zoos, look for a local ordinance in the city or county where the zoo sits, keeping in mind that ordinances only carry weight in states without strong preemption.
At the entrance, read the signage. In states where posted signs carry legal force, a compliant “no firearms” sign creates its own criminal exposure. In states where signs don’t, the sign still marks the point where continuing past it with a firearm sets up a trespass the moment staff asks you to leave.